Plan to improve air quality in Barcelona 2015-2018 - Ajuntament de ...
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Ajuntament de Barcelona Hàbitat Urbà - Medi Ambient i Serveis Urbans Gerència Adjunta de Medi Ambient i Serveis urbans Roman Llagostera, gerent-adjunt de Medi Ambient i Serveis Urbans, Ajuntament de Barcelona Management: Ricard Alsina, director d’Intervenció, Innovació i Qualitat Mediambiental, Medi Ambient i Serveis Urbans, Hàbitat Urbà, Ajuntament de Barcelona Josep M. Selvas, cap del Departament d’Intervenció Ambiental, Ajuntament de Barcelona Joan Marc Craviotto, Departament d’Intervenció Ambiental, Ajuntament de Barcelona Drafted by: Barcelona Regional. Agència Desenvolupament Urbà Gerència Adjunta de Medi Ambient i Serveis Urbans Co-ordination: Jose Lao, cap d’estratègies energètiques, Barcelona Regional Josep M. Selvas, cap del Departament d’Intervenció Ambiental, Ajuntament de Barcelona Joan Marc Craviotto, Departament d’Intervenció Ambiental, Ajuntament de Barcelona Collaborators: Oriol Teixidó, enginyer químic, Barcelona Regional Albert Carbonell, biòleg i tècnic de SIG, Barcelona Regional i l’equip tècnic i administratiu de Barcelona Regional Special thanks to: Pilar Rodríguez, Direcció d’Intervenció, Innovació i Qualitat Mediambiental, Ajuntament de Barcelona Fermí Vallbé, Direcció d’Intervenció, Innovació i Qualitat Mediambiental, Ajuntament de Barcelona Adrià Gomila, Direcció de Serveis de Mobilitat, Ajuntament de Barcelona Carlos López, Direcció de Serveis de Mobilitat, Ajuntament de Barcelona Victòria Plumed, Direcció de Serveis de Mobilitat, Ajuntament de Barcelona Roberto Ríos, Direcció de Serveis de Mobilitat, Ajuntament de Barcelona Isabel Montané, Direcció de Serveis de Mobilitat, Ajuntament de Barcelona Maria Simeón, Direcció de Serveis de Mobilitat, Ajuntament de Barcelona Carlos Vázquez, Direcció de Serveis de Neteja i Gestió de Residus, Ajuntament de Barcelona Cristina Castells, Agència d’Energia de Barcelona, Ajuntament de Barcelona Manel Torrent, Agència d’Energia de Barcelona, Ajuntament de Barcelona Irma Soldevilla, Agència d’Energia de Barcelona, Ajuntament de Barcelona Elisabet Gallardo, Agència d’Energia de Barcelona, Ajuntament de Barcelona Xavier Llebaria, Agència de Salut Pública de Barcelona, Ajuntament de Barcelona Víctor Peracho, Agència de Salut Pública de Barcelona, Ajuntament de Barcelona Marc Rico, Agència de Salut Pública de Barcelona, Ajuntament de Barcelona Carles Chico, Departament de Coordinació d’Obres a l’Espai Públic - Hàbitat Urbà, Ajuntament de Barcelona Carolina Puig, Departament de Coordinació d’Obres a l’Espai Públic - Hàbitat Urbà, Ajuntament de Barcelona Àngel López, Departament Vehicle Elèctric, Hàbitat Urbà, Ajuntament de Barcelona Isabel Hernàndez, Generalitat de Catalunya Xavier Guinart, Generalitat de Catalunya Meritxell Margarit, Generalitat de Catalunya Susana Gil, Generalitat de Catalunya Jordi Vila, Port de Barcelona Joaquim Cortés, Port de Barcelona Santiago Alonso, AENA Manuel Casas, AENA Programa Escoles + Sostenibles APRIL 2015
PMQAB INDEX 1. Introduction 6 2. Aims 6 3. Legislation 7 4. Air quality in Europe: 2003-2012 8 5. Air quality in Barcelona: 2004-2013 13 5.1. Nitrogen oxides: NOX 14 5.2. Particulate matter smaller than 10µ: PM10 18 6. Method and model 25 7. Main results of the modelling: 2013 27 8. Plans and initiatives for improving air quality 31 8.1. Measures relating to urban services: Barcelona City Council 31 8.2. Measures relating to communication and environmental education.Barcelona City Council 32 8.3. Measures for local entities established in the PAMQA action plan 33 8.4. Barcelona’s urban mobility plan (PMU) for 2013-2018: Barcelona City Council 38 8.4.1. PMU scenario: 2018 trend 39 8.4.2. PMU scenario: Action in 2018 40 8.4.3. PMU initiative areas 41 8.4.4. Results of the PMU E-S3 scenario 43 8.5. The Barcelona Self-Sufficiency Strategy for 2015-2024: Barcelona City Council 44 8.6. Barcelona Port 46 8.7. Barcelona Airport 49 9. Trend scenario: 2018-T 51 10. Action scenario: 2018-A 59 11. Additional action scenario: 2018-A+ 57 11.1. Results of the concentrations model: 2018-A+ scenario 59 11.2. Maps: 2018-A+ scenario 61 12. Conclusions 66 13. Annexe 67 13.1. Considerations adopted in the modelling of the 2018 scenario 67 13.2. DMI of vehicles 2013 and 2018-PMU around the Eixample station 68 5
Plan to improve air quality in Barcelona 2015-2018 1. INTRODUCTION 2. AIMS One of the problems of large urban ag- PM10 in Barcelona kept within the limits The main aim of this plan is to establish a glomerations involves local concentrations in 2013, but it exceeded them in previous few strategic guidelines that cross-cut the of specific airborne pollutants, such as years, so it is a pollutant that requires con- various spheres influencing air quality, to nitrous oxides (NOx) and suspended parti- tinual monitoring. Such emissions are gen- direct efforts for improving this quality in cles (principally PM10 and PM2.5). Generally, erated by the combustion of hydrocarbons, the most effective way. these contaminants are found in the air but they can also be released into the air due to emissions from road traffic, indus- through the effect of physical factors, such To achieve this objective, a strategic plan trial centres, domestic discharge and other as the rolling of vehicle tyres over asphalt, for 2015-2018 has been developed for im- sources. Once released into the air, these the abrasion of the asphalt itself, the use proving the air quality in Barcelona and pollutants are subject to the various ef- of brakes in vehicles, dust from building quantitatively assessing the progress that fects of transport and chemical changes, work or demolitions and the re-suspension can be made in this parameter by 2018, ta- together with other substances also pre- of road dust. Particulate matter is classed king into account the plans and measures sent in the atmosphere. as total suspended particles (TSP; aerody- to be implemented over the next few years, namic diameter ≥ 100μm) and PM, which in- which may affect, directly or indirectly, air As in other urban agglomerations such as cludes various size categories; for example, quality in the city of Barcelona. Paris, London, Berlin and Rotterdam, NO2 PM10 corresponds to particles up to 10µm in concentrations in Barcelona and its metro- diameter and PM2.5 encompasses particles Furthermore, the purpose of this document politan area have been exceeding the limits under 2.5µm in diameter. is to determine the adequacy of the action established by the EU for the protection of taken when it comes to compliance with human health. That means measures need European regulations on NO2 and PM10 con- to be adopted at all levels to improve air centration levels in all parts of the city. quality, from legislators to the business sector, not to mention the citizens them- This document is meant to serve as a tool for selves. strategic planning in Barcelona that allows the City Council to take a step forwards in One of the main emissions sources is the managing and improving air quality in the combustion of hydrocarbon fuels: petrol, city. diesel, liquefied petroleum gas and natu- ral gas. These hydrocarbons react with the oxygen and nitrogen in the air to generate greenhouse gases (CO2, CH4 and N2O) and are responsible for pollutants with local ef- fects, such as NOx, particulate matter, car- bon monoxide (CO), volatile organic com- pounds (VOCs) and sulphur dioxide (SO2). 6
PMQAB 3. LEGISLACIÓN Act 22/1983, of 21 November, on the pro- EC, Directive 2002/3/EC and Council Deci- tection of the atmospheric environment, sion 97/101/EC), with the exception of Di- Table 1: Limit values for the pollutants NO2 and PM10. establishes guidelines that must be fol- rective 2004/107/EC, on arsenic, cadmium, lowed to improve environmental quality. In nickel, mercury and polycyclic aromatic Pollutant EU limit values Alert threshold this context, there arose the subsequent hydrocarbons (PAHs). This regulation also Decree 226/2006, declaring several mu- introduces the measurement of suspended nicipalities in the counties of Barcelonès, particles of under 25 microns in diameter Vallès Oriental, Vallès Occidental and Baix (PM2.5) and its air quality objectives. NO2 Hourly: Annual mean: Hourly: Llobregat as areas with special protection 200 µg/m3 40 µg/m3 400 µg/m3 for the atmospheric environment. Later, EU Directive 2008/50/EC on ambient air (RD 102/2011) the then Department of Environment and quality and cleaner air for Europe was im- (Allowed exceedance (over three consecutive limit: 18 times per year) hours) Housing (now the Department of Territory plemented in Spain through Royal Decree and Sustainability) approved, on 10 July 102/2011, on improving air quality which, 2007, the action plan to improve air quality for its part, consolidated Royal Decrees in those municipalities declared as areas 1073/2002, 1796/2003, 812/2007 and Act with special protection for the atmospheric 37/2007. Therefore, the current reference environment by Decree 226/2006 of 23 May. legislation for assessing air quality con- sists of EU Directive 2008/50/EC and Royal Therefore, the metropolitan zone has been Decree 102/2011. The concentration limits PM10 Daily (24h): Annual mean: declared an area with special protection established by the EU and implemented in 50 µg/m3 40 µg/m3 (RD 102/2011) for the atmospheric environment by Decree its member states are as follows: (The limit value of 50 226/2006 of 23 May for pollutant nitrogen µg/m3 must not be dioxide and for suspended particulates exceeded more than 35 times a year or the 90.4 under 10 microns in diameter. This is the percentile must be equal result of having repeatedly exceeded the to or under the limit value* of 50 µg/m3) concentrations of these contaminants in levels greater than those admissible under current legislation. In 2008, the European Parliament and Coun- cil approved Directive 2008/50/EC, of 21 May, on ambient air quality and cleaner air Source: DTES, Department of Territory and Sustainabi- for Europe. This directive consolidates the lity at the Generalitat of Catalonia. [*] The 90.4 percen- previous legislation (Directive 96/62/EC, tile has to be applied to sampling stations with fewer than 90% of valid measurements. Directive 1999/30/EC, Directive 2000/69/ 7
Plan to improve air quality in Barcelona 2015-2018 4. AIR QUALITY IN EUROPE: 2003-2012 Nitrogen dioxide The reduction in terms of NOX emissions There has been a clear downward trend in in Europe, according to the latest report Figure 1: PM2.5, PM10, NOX, SOX, NH3, NMVOC, CO and CH4 emissions trends in the EU airborne NO2 concentrations over the last on air quality in the region (Air Quality in from 2003 to 2012. decade in most European countries and at Europe - 2014 report, European Environ- all types of measuring stations. The reduc- mental Agency), is still far from reaching tion in terms of NOX emission (30% betwe- acceptable air quality levels. The report Index % 2003 en 2003 and 2012) is more pronounced than reviews trends in local pollutants in Euro- the decrease in annual mean NO2 concen- pean cities, from 2003 to 2012, based on trations (of 18%) in the EU-28.This differen- actual concentration measurements, along ce is mainly attributed to the higher per- with data on anthropogenic emissions, in 100 centage of NO2 emitted directly from diesel an area comprising 38 European countries, vehicles. 90 including 28 EU member states and certain other countries that are members of the 80 In the period 2003-2012 and in the avera- European Environmental Agency. 70 ge for the EU-28, it can be seen that there has been a fall in the annual mean NO2 va- The main conclusion of the report is that 60 lue of -0.5 µg/m3/year in urban background the most problematic pollutants for human 50 and industrial stations, -0.7 µg/m3/year health present in the EU are particle matter in traffic areas and -0.2 µg/m3/year in the and ground-level ozone, followed by BaP 40 background level. and NO2. On the other hand, from the point 30 of view of ecosystem protection, the most 20 harmful contaminants are O3, NH3 and NOX. 10 Note that the most problematic pollutant 0 in Barcelona is currently NO2, having been 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 PM10 in the recent past. For this reason, the Strategic Plan for Improving Air Quality in SOx NOx NH3 PM10 PM2,5 NMVOC CO CH4 Barcelona for 2015-2018 focuses exclusi- vely on these two contaminants. Source: Air Quality in Europe – 2014 report, European Environmental Agency. 8
PMQAB Figure 2: PM10 and NOX emissions trends by sector for the EU-28 members from 2003 Figure 3: Box plot of the annual mean NO2 levels in Europe (EU-28). Period 2003-2012. to 2012. NOx PM10 Source: Air Quality in Europe - 2014 report, European Environmental Agency box plot: upper and lower whiskers: upper and lower data limits; bottom line of the box: first quartile (25% of the data); top line of the box: third quartile Transport Commercial, institutional and domestic combustion (75% of the data); point: arithmetic mean; red line: legislated value. Industry Use of solvents and products Other Energy ex. industry Agriculture Source: Air Quality in Europe – 2014 report, European Environmental Agency [Gg = 1.000 tones]. 9
Plan to improve air quality in Barcelona 2015-2018 Figure 4: Box plot of the annual mean NO2 levels in Europe (EU-28). 2012. Figure Gràfic 55:/ Mean Gráfico 5 / Graphic annual 5: Concentracions NO2 concentrations in Europe.en 2012. mitjana anual d’NO2 a Europa. Any 2012 / Concentracions en mitjana anual d’NO2 a Europa. Any 2012 / Concentracions en mitjana anual d’NO2 a Europa. Any 2012 Annual mean nitrogen dioxide values for 2012, based on daily means with ≥ 75% in µg/m3 ≤ 20 20-30 30-40 40-50 > 50 No data available Countries/regions not included in the data-exchange process Source: Air Quality in Europe - 2014 report, European Environmental Agency Box plot: upper and lower whiskers: upper and lower data limits; bottom line of the box: first quartile (25% of the data); top line of the box: third quartile (75% of the data); point: arithmetic mean; red line: legislated value. Font / Fuente Source: / Source: Air Quality Air Quality in Europe – 2014in report, EuropeEuropean – 2014 report, European Environmental Environmental Agency. Agency / Air Quality in Europe – 2014 report, European Environmental Agency / Air Quality in Europe – 2014 report, European Environmental Agency 10
PMQAB Particulate matter A general downward trend can be seen in Gràfic 6 / Gráfico 6 / Graphic 6: Diagrama de caixes de les mitjanes anuals de Font / Fuente / Source: Air Quality in Europe – 2014 report, European Environmental Agency. Diagrama de the airborne PM10 concentrations in the pe- Figure 6: Box(EU-28). PM10 a Europa Període plot of PM 10 2003-2012 annual / Diagrama means in de caixes Europe (EU-28). de les Period mitjanes anuals 2003-2012. caixes: puntes superior i inferior: extrems superior i de PM10 a Europa (EU-28). Període 2003-2012 / Diagrama de caixes de les mitjanes inferior de les dades, caixa línia inferior: primer quartil riod 2003-2012, as well as a reduction in PM (25% dades), caixa línia superior: tercer quartil (75% emissions. Most stations recorded a decre- anuals de PM10 a Europa (EU-28). Període 2003-2012. de les dades), punt: mitjana aritmètica; línia vermella: valor legislat / Air Quality in Europe – 2014 report, ase of -1 µg/m3/year or more in the period European Environmental Agency. Diagrama de caixes: 2003-2012 and only 2% of stations recorded puntes superior i inferior: extrems superior i inferior de les dades, caixa línia inferior: primer quartil (25% an increase. dades), caixa línia superior: tercer quartil (75% de les dades), punt: mitjana aritmètica; línia vermella: valor legislat / Air Quality in Europe – 2014 report, European On average, the urban background stations Environmental Agency. Diagrama de caixes: puntes su- recorded a drop of -0.7 µg/m3/year in annual perior i inferior: extrems superior i inferior de les dades, caixa línia inferior: primer quartil (25% dades), caixa mean and -0.9 µg/m3/year in the 90.4 per- línia superior: tercer quartil (75% de les dades), punt: centile, whereas the traffic stations recor- mitjana aritmètica; línia vermella: valor legislat. ded decreases of -1.0 and -1.5 µg/m3/year, respectively. Source: Air Quality in Europe - 2014 report, European Environmental Agency Box plot: upper and lower whiskers: upper and lower data limits; bottom line of the box: first quartile (25% of the data); top line of the box: third quartile (75% of the data); point: arithmetic mean; red line: legislated value. 11
Plan to improve air quality in Barcelona 2015-2018 Figure 7: Box plot of the 90.4 percentile of PM10 daily means in Europe (EU-28). 2012. Figure 8: Percentil Gràfic 8: 90.4 percentile 90,4 deofles PM daily means mitjanes 10 diàriesinde Europe. PM10 a2012. Europa. Any 2012. 90.4 percentile of the PM10 concentration in 2012, based on the daily mean with valid measurements of ≥ 75% in µg/m3 ≤ 20 20-40 40-50 50-75 > 75 No data available Countries/regions not included in the data-exchange process Source: Air Quality in Europe - 2014 report, European Environmental Agency Box plot: upper and lower whiskers: upper and lower data limits; bottom line of the box: first quartile (25% of the data); top line of the box: third quartile (75% of the data); point: arithmetic mean; red line: legislated value. Source: Font: AirAir Quality Quality in Europe in Europe - 2014 – 2014 report, report, European European Environmental Environmental Agency. Agency. 12
PMQAB 5. AIR QUALITY IN BARCELONA: 2004-2013 In Barcelona in 2013, the annual mean NO2 November and defined by the Order of 20 as one of the systems for evaluating the The location of the various monitoring sta- concentrations at both of the city’s sam- June, 1986. It has a pyramidal structure atmospheric environment. tions in Barcelona is shown below accord- pling stations in areas of intense traffic with the base formed by the measuring • Locating air-pollutant emission sources ing to the pollutants measured (NO2, PM10, exceeded the European threshold .Even points and the apex being the receiving and having information available for as- PM2.5) and whether they are traffic, indus- so, in recent years there has been a down- and data coordination centre. A measuring sessing any potential impact. trial or background measurement stations: ward trend in the recorded concentrations point is the zone in the region that houses of this pollutant. the sampling and pollutant analysis equip- ment, manual and automatic alike. Figure 9: Location map of XVPCA stations in Barcelona. 2013 was the first year when the PM10 con- centration levels recorded at all sampling The main aim of this network is to moni- stations were below the European thresh- tor air quality, i.e. record the concentration olds. Although it could be argued that Bar- levels of major atmospheric pollutants and celona already complies with the regu- from the results of these measurements, lations, measures still need to continue determine whether corrective measures being taken, to prevent the pollutant from are necessary. The network, therefore, is exceeding its established limits once again. extremely useful for: This strategic plan focuses on NO2 and PM10 • Understanding temporal trends in air because these are the only contaminants quality levels in the region. that are or have been recorded at levels • Informing citizens of the state of air above the European limit values in recent quality and its trends. years. They are therefore the only ones that • Taking action in areas where health pro- have to be the subject of any plans drawn tection limit values are exceeded or at up under the applicable regulations. risk of being exceeded. • Drawing up maps of territorial vulner- The main tool for assessing air quality is ability and capacity (as an instrument to the XVPCA (Network for Monitoring and guide regional planning). Forecasting Air Pollution), co-managed • Complying with current regulations re- in Barcelona by the city’s Public Health garding the protection of the atmospher- Agency and the Generalitat of Catalonia. ic environment. The standards regulat- ing air quality establish the measuring The XVPCA is a system for detecting the of atmospheric pollutant concentrations concentration levels of major pollutants. It was set up following Act 22/1983, of 21 Source: Barcelona Regional Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been included. 13
Plan to improve air quality in Barcelona 2015-2018 Below is a review of the concentration lev- indicate that the annual mean European el trends of nitrogen oxides and particles threshold was only exceeded at two sta- Figure 10: Location of the NO2 measuring stations in Barcelona, indicating those sta- of under 10 microns in diameter, measured tions: Eixample and Gràcia - Sant Gervasi tions that exceeded the annual mean European threshold in 2013. at Barcelona’s XVPCA stations. (in 2012 there were four). This represents an important improvement. On the other 5.1. NITROGEN OXIDES: NOX hand, the maximum hourly limit was not ex- ceeded at any station. 65% of the nitrogen oxides emitted in Cata- Below are the two stations that in 2013 lonia come from motor vehicles, though exceeded the maximum annual mean con- transport may represent as much as 70% of centration. all emissions in urban areas. Nitrogen ox- ides (NOx = NO + NO2) are generated at high temperatures (for example, during hydro- carbon combustion) as oxygen and nitro- gen in the air react with one another. Part of this reaction produces NO and another results in NO2. After combustion, some of the NO, once released into the air, can be transformed into NO2 through a process known as oxidation. This process is caused by certain chemical reactions involving the NO present in the air and sunlight, as well as other external factors. The EU has established mean annual and hourly concentration limits for NO2. The first states that mean annual NO2 values must not exceed 40 μg/m3 and the second NO2 concentration measuring stations states that the fixed NO2 hourly limit of 200 Within the European threshold µg/m3 must not be exceeded more than 18 Exceeding the European threshold (40 μg/m3) times per year. Source: Barcelona Regional Only fixed measuring stations (F) have been considered; indicative measuring stations The NO2 measurements recorded in 2013 (i) have not been included. for the various XVPCA stations in Barcelona 14
PMQAB Table2: Number of stations in Barcelona in 2013 by type and municipality.NO2 measurement. Figure 11: Annual mean concentrations of NO2 [2012 and 2013]. Suburban- Suburban- Suburban- Urban-bac- Urban- Total background industrial traffic kground traffic Annual mean concentrations of NO2 [2012 and 2013] Barcelona Barcelona (Eixample) 2 5 7 70 60 Source: DTES. Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been included. 50 Barcelona (Parc de la Barcelona (Gràcia - Sant Vall d'Hebron) Gervasi) 40 The following figure shows the annual mean that all the stations recorded improved 30 NO2 concentration levels recorded at the concentrations in 2013 (blue) with respect 20 seven stations in 2013. If the blue and green to 2012 (green). The figure also shows the 10 lines are compared, it can be generally seen annual mean legislated limit (red line). 0 Barcelona (Palau Reial) Barcelona (Poblenou) Barcelona (Sants) Barcelona (Ciutadella) EU limit (40 ug/m3) XVPCA-NO2 (2012) XVPCA-NO2 (2013) [variable arranged from highest to lowest] Source: Barcelona Regional with data from the DTES. Only fixed measuring stations (F) have been considered; indica- tive measuring stations (i) have not been included. 15
Plan to improve air quality in Barcelona 2015-2018 Below are the details of the levels record- ed by the stations in Barcelona since 2005. Figure 12: Annual mean NO2 concentrations in Barcelona, 2013-2005. Mitjana anual de la immissió de NO2 a Barcelona [2012] Immissió Concentration < Límit < EUElimit Mitjana anual de la immissió de NO2 a Barcelona [2012] U Immissió > Limit Concentration > EUElimit U Limit EU limitEU Mitjana anual de la immissió de NO2 a Barcelona [2013] Mitjana anual de la immissió de NO2 a Barcelona [2010] Mitjana anual de la immissió de NO2 a Barcelona [2011] Immissió < Límit EU Immissió > Limit EU Immissió Limit EU < Límit EU Immissió >PROMIG Limit EUBARCELONA Limit EU Immissió < Límit EU Immissió > Limit EU Limit EU Immissió < Límit EU Immissió > Limit EU Limit EU PROMIG MEAN BARCELONA BARCELONA VALUE PROMIG BARCELONA PROMIG BARCELONA PROMIG BARCELONA Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Barcelona Sant Gervasi) (Gràcia -‐ Sant Gervasi) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Parc Vall d'Hebron) Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Sants) ug/m3 [Barcelona 2013] (Sants) Barcelona ug/m3 (Poblenou)[2012] Barcelona (Sants) ug/m3 [Barcelona 2011] (Sants) ug/m3 [2010] 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 Barcelona (Sants) 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 ug/m3 [2012] Mitjana anual de la immissió de NO2 a Barcelona [2009] 2013] Mitjana anual de la immissió de NO2 a Barcelona [2008] Mitjana anual de la immissió de NO2 a Barcelona [2007] Mitjana anual de la immissió de NO2 a Barcelona [2006] Mitjana anual de la immissió de NO2 a Barcelona [2005] Immissió < Límit EU Immissió > Limit EU Limit EU < Límit EU Immissió Immissió > Limit EU Limit EU 0 < Límit Immissió 10 EU20 30 40 > Limit Immissió 50 EU 60 70 EU80 < Límit Immissió Limit 90 EU Immissió > Limit EU Immissió Limit EU< Límit EU Immissió > Limit EU Limit EU PROMIG MEAN BARCELONA BARCELONA VALUE PROMIG BARCELONA PROMIG BARCELONA PROMIG BARCELONA PROMIG BARCELONA Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Ciutadella) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Palau Reial) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Sants) ug/m3 [2009] 2013] Barcelona (Sants) ug/m3 [2008] Barcelona (Sants) ug/m3 [2007] Barcelona (Sants) ug/m3 [2006] Barcelona (Sants) ug/m3 [2005] 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 Source: Barcelona Regional with data from the DTES (Department of Territory and Sustainability of the Generalitat of Catalonia). Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been included. 16
PMQAB Table 3: Annual mean NO2 concentrations at Barcelona’s XVPCA stations. Data in μg/m3. 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 EU limit → 52 50 48 46 44 μg/m3 42 Màxim de mitjana anual 40 40 40 40 μg/m3 Mitjana anual Name of XVPCA station [∆] 2004 2005 2006 2007 2008 2009Mínim de mitjana anual2010 μg/m3 2011 2012 2013 Sants-Montjuïc UT 36 49 31 47 45 41 41 40 37 33 Poblenou UT 40 43 47 42 47 51 45 2004 2005 43 2006 2007 2008 2009 42 2010 2011 2012 402013 μg/m3 Màxim de mitjana anual Parc de la Vall d'Hebron UF -- -- -- -- 36 μg/m3 40 Mitjana anual 37 33 31 27 μg/m3 Mínim de mitjana anual Palau Reial UT -- -- -- -- -- -- -- 32 36 32 Gràcia - Sant Gervasi UT 67 83 74 63 63 63 64 66 61 54 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Eixample UT 60 68 68 66 65 μg/m3 62 Màxim de mitjana anual -- 65 61 56 μg/m3 Mitjana anual La Ciutadella UF 43 48 47 46 42 μg/m3 46 Mínim de mitjana anual 46 40 42 35 Source: DTES. Department of Territory and Sustainability of the Generalitat of Catalonia [Δ] UT = Urban-traffic, UB = Urban-background. Exceedance of the European threshold is indicated in red. Figure 13: Trends in average NO2 concentrations at the stations in Barcelona. Number of station NO2 [Maximum value of the annual mean] NO2 [Annual mean] NO2 [Minimum value of the annual mean] Nu Annual rate If we take the average of the mean annual -2.39% in annual values since 2004, a fig- concentrations at Barcelona’s seven NO2 ure that represents an average reduction measuring stations, it can be seen that of -1.0 µg/m3 per year. This mainly ongo- the mean concentration was 39.6 µg/m3 ing trend can be seen from the following in 2013, revealing a downward trend of figure. Source: Barcelona Regional Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been included. 17
Plan to improve air quality in Barcelona 2015-2018 The maximum levels of the annual means 5.2. PARTICULATE MATTER SMALLER shown in the previous figure (red line) are Figure 14: Percentage of stations in Barcelona that exceeded EU limits (NO2). THAN 10µM: PM10 the maximum values reached in the con- sidered stations each year. In the case of Particulate matter is usually generated NO2, the red line shows the annual mean by traffic, as a result of the combustion of concentrations in the stations of Gràcia - 100% certain fuels, but it may also be present NO2: Sant Gervasi and Eixample (they alternate 90% % stations that exceeded in the air from activities that have noth- according to the year), while the minimum the limits / total stations 80% ing to do with combustion, such as public 80% annual mean levels mainly correspond to works or re-suspension of particles previ- 70% 67% 67% the station in Parc de la Vall d’Hebron. 60% ously deposited on the ground (e.g. when 60% 57% vehicles circulate on the road); this latter Note that it is the red line that indicates 50% 43% phenomenon is more intense during in compliance or non-compliance with Eu- 40% 40% 40% periods with little rain. 40% ropean air quality threshold and this line 29% 30% reflects a reduction of -1.97% per year, Note however that there is a significant data that shows the improving trend of 20% contribution of particulate matter from recent years. 10% outside the city; this is input from the re- 0% gional background. The particles may be In general, 29% of the fixed XVPCA meas- 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 uring stations in Barcelona in 2013 ex- ceeded the maximum levels admitted by legislation. The following figure shows the Source: Barcelona Regional Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been included. drop in this percentage since 2010. It also shows the increase from 2004 to 2010, principally because the European an- nual mean threshold for NO2 has become much stricter since 2004; the threshold decreased from 52 µg/m3 in 2004 to 40 µg/ m3 in 2010. 18
PMQAB solid or liquid and include dust, metals, ual measurements), then the above-men- ash, cement and pollen. The definition of tioned daily exceedance threshold will Figure 15: Location of the PM10 measuring stations in Barcelona; it can also be seen PM10 implies that the particles have a di- not be applied and the 90.4 percentile will that no station exceeded the average mean PM10 threshold in 2013. ameter of under 10 µm. be evaluated instead and it will have to be under or equal to 50 µg/m3. This means European legislation sets an annual mean that some particulate-matter measuring concentration level as well as a daily stations exceed the percentile levels set mean. The first establishes that an annu- out under the new decree, where they are al mean value of 40 μg/m3 must not be ex- not in exceedance under the regulations ceeded. The second states that the daily and the calculation method of the previ- mean of 50 µg/m3 must not be exceeded ous decree. more than 35 times in a year. Below is a location map for the PM10 Note too, that, under Royal Decree measuring stations. 102/2011, where the number of valid daily particulate matter readings is under 90% (a typical situation in stations with man- Table 4: Number of stations per type in Barcelona in 2013. PM10 measurement. Suburban- Suburban- Suburban- Urban- Urban- Total PM10 concentration measuring stations PM10 background industrial traffic background traffic Within the European threshold Barcelona 1 4 5 10 Exceeding the European threshold (40 μg/m3) Source: DTES. Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been Source: Barcelona Regional Only fixed measuring stations (F) have been considered; indicative measuring stations included. (i) have not been included. 19
Plan to improve air quality in Barcelona 2015-2018 In Barcelona in 2013, ten fixed PM10 meas- The following figure details the levels re- uring points were installed and none re- Figure 16: Annual mean PM10 concentrations [2012 and 2013]. corded by the stations since 2005. In ad- M10 corded values XVPCA- tablished riable exceeding the threshold es- d'ordenació de dition, the symbol * shows the stations PM10 for annual mean Límit concentrations EU (40 Immissió de PM10 en mitjana anual [2012 i 2013] which complied with the European annual (this(2012) has been true since 2010). In addition, ug/m3) Barcelona (Plaça de la mean levels but failed to meet the daily de la Universitat) 40 Universitat) ple) none of these recorded values exceeded 40 50 mean exceedance thresholds. rdaguer) the corresponding daily mean threshold 40 Barcelona (Parc de la 45 - Sant Gervasi) (this threshold was exceeded in 40 Barcelona (Eixample) 2012 by Vall d'Hebron) 40 40 35 ou) two stations and in 2011 by three). 40 30 ell) 40 Universitària) 25 The following figure shows the annual 40 mean oya) 40 20 PM10 concentration levels recorded e la Vall d'Hebron) 40 in Barcelona (IES Goya) 15 Barcelona (IES Verdaguer) 2012 and 2013 at the XVPCA stations in Bar- 10 celona. Also shown on the figure, marked by 5 * a , are those stations that, although com- plying with the European average mean 0 concentration threshold, did not meet the Barcelona (Zona Barcelona (Gràcia - Sant daily mean exceedance thresholds. Universitària) Gervasi) Barcelona (Port Vell) Barcelona (Sants) Barcelona (Poblenou) EU limit (40 ug/m ) 3 XVPCA-PM10 (2012) XVPCA-PM10 (2013) [variable arranged from highest to lowest] Source: Barcelona Regional with data from the DTES. Only fixed measuring stations (F) have been considered; indica- tive measuring stations (i) have not been included. Note for PM10: The asterisk * indicates sampling stations that did not comply with the maximum limits established for daily PM10 concentration measurements, even though their annual concentrations were below the maximum stipulated mean. 20
PMQAB Figure 17: Annual mean PM10 concentrations at the stations in Barcelona, 2013-2005. Mitjana anual de la immissió de NO2 a Barcelona [2012] Mitjana anual de la immissió de PM10 a Barcelona Mitjana Immissió Mitjana Concentration Limit Concentration > EUE UEU limit Limit EU anual de la immissió de PM10 a Barcelona [2011] limitEUE U Mitjana anual de la immissió de PM10 a Barcelona [2010] Immissió limit EUImmissió Limit limit EU Immissió Limit limit EU Limit EU PROMIG MITJANA BARCELONA MEANBarcelona VALUE PROMIG Barcelona PROMIG Barcelona PROMIG Barcelona Barcelona (Ciutadella) Barcelona (c/ Lluís Solé i Sabaris) Barcelona (c/ Lluís Solé i Sabaris) Barcelona (c/ Lluís Solé i Sabaris) Barcelona (c/ Lluís Solé i Sabaris) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Eixample) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) * Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) * Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) Barcelona (IES Vergader) Barcelona (IES Vergader) Barcelona Reial)(IES Vergader) Barcelona (Palau Barcelona (IES Vergader) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Plaça Universitat) Barcelona (Poblenou) Barcelona (Plaça Universitat) Barcelona (Poblenou) Barcelona (Plaça Universitat) Barcelona (Poblenou) Barcelona (Poblenou) *Barcelona (Plaça Universitat) Barcelona (Poblenou) Barcelona (Port Vell) Barcelona (Port Vell) Barcelona (Port Vell) Barcelona (Port Vell) Barcelona (Sants) ug/m3 [2012] Barcelona (Sants) Barcelona (Zona Universitària) Barcelona Barcelona (Sants) (Zona Universitària) * Barcelona (Sants) Barcelona (Zona Universitària) *50 60 (Zona Barcelona (Sants) * ug/m3 [2013] ug/m3 [2012] 0 10 20 30 40 ug/m3 [2011] Barcelona 70Universitària) 80 90 ug/m3 [2010] 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 Mitjana Mitjana anual de la immissió de PM10 a Barcelona [2010] Mitjana 2009]anual de la immissió de PM10 a Barcelona [2008] anual de la immissió de PM10 a Barcelona Mitjana Mitjana [2007]anual de la immissió de PM10 a Barcelona [2006]anual de la immissió de PM10 a Barcelona [2005] Immissió limit EUImmissió Limit limit EU Immissió Limit E limit EUImmissió Limit limit EUImmissió Limit limit EU Limit EU PROMIG MITJANA BARCELONA MEANBarcelona VALUE PROMIG Barcelona PROMIG Barcelona PROMIG Barcelona PROMIG Barcelona Barcelona (c/ Lluís Solé i Sabaris) Barcelona (Eixample) Barcelona (c/ Lluís Solé i Sabaris) Barcelona (Eixample) * Barcelona (c/ Lluís Solé i Sabaris) * Barcelona (c/ Lluís Solé i Sabaris) Barcelona (Eixample) Barcelona (c/ Lluís Solé i Sabaris) Barcelona (Eixample) * Barcelona (Eixample) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) * Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) Barcelona (Gràcia -‐ Sant Gervasi) Barcelona (IES Goya) Barcelona (IES Vergader) Barcelona (IES Vergader) Barcelona (IES Vergader) Barcelona (IES Vergader) Barcelona (IES Vergader) Barcelona (Parc Vall d'Hebron) *Barcelona (Plaça Universitat) Barcelona (Parc Vall d'Hebron) *Barcelona (Plaça Universitat) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Parc Vall d'Hebron) Barcelona (Plaça Universitat) Barcelona (Poblenou) * Barcelona (Poblenou) Barcelona (Poblenou) Barcelona (Plaça Universitat) Barcelona (Poblenou) Barcelona (Plaça Universitat) Barcelona (Poblenou) Barcelona (Port Vell) * Barcelona (Port Vell) * Barcelona (Port Vell) * Barcelona (Port Vell) Barcelona (Port Vell) Barcelona (Sants) Barcelona (Zona Universitària) * Barcelona (Sants) Barcelona (Sants) Barcelona (Sants) Barcelona Barcelona (Sants) (Zona Universitària) ug/m3 [2010] Barcelona (Zona Universitària) 2009] ug/m3 Barcelona [2008] (Zona Universitària) Barcelona ug/m3 (Zona Universitària) [2007] ug/m3 [2006] ug/m3 [2005] 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 Source: Barcelona Regional with data from the DTES: Department of Territory and Sustainability of the Generalitat of Catalonia Only fixed measuring stations (F) have been considered; indicative measuring stations (i) have not been included. 21
Plan to improve air quality in Barcelona 2015-2018 Table 5: Annual mean PM10 concentrations at Barcelona’s XVPCA stations. Data in μg/m3. EU limit → 40 40 40 40 40 40 40 40 40 40 Name of XVPCA station [∆] 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Zona Universitària UF 34 33 34 33 31 34 27 29 28 20 Sants-Montjuïc UT 52 49 62 54 44 48 34(*) 39(*) 38(*) 25 El Port Vell SI -- -- -- 40(*) 36(*) 34(*) 28 29 32 24 Poblenou UT -- -- -- 54 45 46 32 32 31 25 Plaça de la Universitat UT 46 47 52 43 43 40(*) 34 37(*) 33 27 Parc de la Vall d'Hebron UF -- -- -- -- 33(*) 34(*) 25 25 24 19 IES Verdaguer UF -- -- -- -- -- 33 29 32 31 26 IES Goya SF -- -- -- 33 30 -- 29 30 27 20 Gràcia - Sant Gervasi UT 50 48 49 46 39 40(*) 33 37(*) 38(*) 26 L'Eixample UT 55 55 59 49 43 41 -- 34 33 27 C. Lluís Solé i Sabarís UF -- 39(*) 42 38(*) 38(*) -- -- -- -- -- Source: DTES, Department of Territory and Sustainability of the Generalitat of Catalonia [Δ] UT = Urban-traffic, If we consider the PM10 measuring stati- sents an average reduction -2.6 µg/m3 per UB = Urban-background, SB = Suburban-background, SI = Suburban-industrial In red are the values exceeding the European annual mean threshold; stations marked with an asterisk (*) are those that exceeded the daily limit ons in Barcelona, in 2013 the mean con- year. The maximum annual mean values values: LVd or P90.4, even though the annual means were below the EU limit. centration was 23.9 µg/m3, a drop of -7.3% (red line) also fell at a similar rate. with respect to the 2004 value. This repre- 22
PMQAB 12 2013 12 2013 Figure 18: PM10 concentration trends averaged over the XVPCA stations in Barcelona. Figure 19: Percentage of XVPCA stations in Barcelona that exceeded the EU limits (PM10). nual mean] Number of station PM10 [Maximum value of the annual mean] PM10 [Annual mean] PM10 [Minimum value of the annual mean] 100% Annual rate PM10: 90% 83% 83% % stations that exceeded 80% 78% 78% 80% the limits / total stations 70% 70% 60% 50% 40% * * 30% 30% 20% * 11% 20% 10% 0% 0% 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Source: Barcelona Regional Only fixed measuring stations (F) are considered; indicative measuring stations (i) have Source: Barcelona Regional Only fixed measuring stations (F) have been considered; indicative measuring stations not been considered. (i) have not been included. As can be seen in the two following figu- since 2009 and in 2013 it was 0%, a per- Note: 2010, 2011 and 2012 (marked with *): Although none of the stations exceeded the average EU limit, they did exceed the daily limit values: LVd or P90.4 (this latter value is only considered at stations registering under 90% res, the percentage of stations exceeding centage indicating that no station excee- valid measurements). the PM10 limits has dropped drastically ded the European threshold. 23
Plan to improve air quality in Barcelona 2015-2018 Climate has also had an effect on these fi- gures, particularly in recent years, as this Figure 20: Trend of annual mean wind speeds recorded at Barcelona Fabra pollutant is heavily influenced by meteo- Observatory. rological conditions. The following figure shows how from 2009 to 2010 the concen- tration of PM10 dropped significantly, whi- 5 le average wind speed increased. This is Wind speed (m/s) exactly the opposite of what happened in 4.8 4.63 2010 to 2011. 4.6 4.4 4.32 4.27 4.17 4.17 4.21 4.20 4.2 4.05 3.99 4.01 4 3.8 3.6 3.4 3.2 3 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Source: Meteocat. 24
PMQAB 6. METHOD AND MODEL For the purposes of regionally modelling air at street scale. It calculates the dispersion quality levels, a detailed inventory had to be and concentration of pollutants from any Image 1: Diagram of emission layers introduced using ADMS-Urban by means of ArcGIS. made of the pollutant-emission sources dis- emission source, including traffic, indus- tributed throughout the region and not just trial, domestic, commercial, airport and boat within the studied municipality, as the con- emissions and enables the calculation of taminants may travel long distances from the hour-by-hour, daily and annual mean con- places they are emitted from. It was through centrations, as well as exceedances of pol- this inventory and all the environmental vari- lutants such as NOx, NO2, O3, PM10 and PM2.5. Road traffic ables (e.g. wind regime, precipitation, relief, ADMS-Urban is a specific tool to help in de- building configuration and source concentra- cision making for medium- and long-term tion) that the NO2 and PM10 contamination lev- policies aimed at improving air quality in cit- s els were calculated on an hour-by-hour basis. Buse ies and metropolitan areas. The work was conducted under the frame- The model is used by many cities and re- work of the 2013 Barcelona Local Pollution gions, including London, Beijing, Shanghai, Airpo rt Evaluation study, using data collected and Hong Kong, Budapest, Strasbourg, Rome processed for developing an inventory of and California. It also has been used in the ort regional-scale geo-referenced emissions Generalitat of Catalonia’s action plan for im- The p with information broken down by sector to a proving air quality, as well as in the prepara- scale suitable for working on a contaminant tion of documents on air quality in Catalonia ial, merc dispersion model. Com nd delivered to the European Commission by d o m e stic a r secto s trial The emissions inventories in most of the sec- the Catalan government. in d u tors were drawn up using EMEP/EEA GB2013. The model is based on current dispersion Emissions trial map Indus es COPERT software was used alongside real models, including the following: sourc vehicle emissions measurements for drawing n activ ities tractio up the road traffic emissions inventory. • Advanced Gaussian concentration model- Other servic es: ex ling. To model the dispersion of the pollutants NOX, • Street canyon effect modelling based on Concentrations map NO2 and PM10 the ArcGIS software was used, the Danish OSPM model. in addition to the ADMS-Urban modelling pro- • Chemical reaction modelling according to gramme. ArcGIS is a GIS (geographic informa- the CBM IV mechanism. tion software) tool that allows databases to be linked with geographic information. The following figure provides an example of the emission layers implemented using ADMS-Urban programme is a pollutant dis- ADMS-Urban by means of GIS tools and the persal model that can be used for urban Source: Barcelona Regional. subsequent result presented in the form of a and metropolitan environments, as well as concentrations map. 25
Plan to improve air quality in Barcelona 2015-2018 Contaminant dispersion model Current situation The method used to calculate concentra- • It uses an hourly processing module of ous sources. It also considers the photo- A considerable quantity of regional data ne- tions is based on the ADMS-Urban contam- flow and turbulence across the zone de- chemical reactions resulting from inci- eds to be known before the reality can be inant dispersion model and offers the pos- rived from the relief. The module utilised dent solar radiation. simulated. On the one hand, there are the sibility of modelling the chemical reactions is Flowstar, which incorporates a specific • It has a system of smart virtual receptors. intrinsic features of the region and, on the ot- that occur between various chemical spe- OSPM for assessing the street canyon In addition to a regular grid of points dis- her, the composition and behaviour of the va- cies present in the atmosphere, together effect produced by the network of roads tributed throughout the region, it allows rious emission sources scattered throughout with the effect of solar radiation. between buildings, derived from the re- the automatic assignment of measuring the zone need to be known. Note that in the circulation of air and turbulence caused points on roads and motorways to im- annual pollutant dispersion simulation, the The model also uses algorithms to assess by traffic in that built-up area. prove the level of detail. hourly, daily and monthly emissions produ- the wind speed at various altitudes, the tur- • It takes into account the reactions be- ced by the various sources have also been bulences which are created using the vari- tween the various chemical present in The diagram in the following figure shows the introduced. ous configurations of the land and the air the atmosphere and emissions from vari- method to follow for modelling air quality: To calibrate and validate the model, real data currents generated in the streets. Moreo- from the XVPCA measuring stations are com- ver, it allows you to add hourly, weekly and pared hour by hour using the virtual mea- monthly pollutant emissions timetables surements introduced into the model at the from several sources, a variable that ena- Image 2: Method diagram for modeling air quality. same geo-referenced locations. This analysis bles the study of emissions trends over allows the modelling parameters to be ad- time, as well as their impact on concentra- justed for obtaining concentration results as tions. close to the reality as possible. BASELINE DISPERSION VALIDATION AND RESULTS INFORMATION MODEL CALIBRATION This model is directly linked to a geographic Note that the reality is not a mathematical information system (GIS) and an emissions model and that there are variables outsi- STRUCTURAL database that allows you to quantify and INPUT •GAUSSIAN MODEL VALIDATION MAP OF POLLUTANT de configurable behaviour patterns, which DISPERSION MODEL CONCENTRATIONS geographically locate the pollutant emis- AND CALIBRATION include situations such as traffic jams on EMISSIONS •CHEMICAL FROM REAL AND AN ANALYSIS sions sources even more accurately. REACTIONS CONCENTRATION OF POLLUTANTS atypical days, fires and demolition. INVENTORY DATA ACCORDING TO BACKGROUND •STREET CANYON THEIR SOURCES Pollutant dispersion model The main features of the model are: MODELLING CONTAMINATION Future scenarios • It is specific for analysing pollutant con- REAL With the model calibrated and validated for CONCENTRATION centrations in urban and metropolitan DATA 2013, as explained in the 2013 Barcelona Lo- environments with a resolution down to cal Pollution Evaluation document, air qua- street-scale. lity was modelled for the year 2018, for both Source: Barcelona Regional. • It is based on an advanced Gaussian pol- trend and action scenarios, including measu- lutant dispersion model. rements from the various plans and program- • It incorporates a meteorological preproc- mes that have an effect on local pollution in essor. Barcelona. 26
You can also read