{"id":3086,"date":"2025-06-16T14:52:59","date_gmt":"2025-06-16T12:52:59","guid":{"rendered":"https:\/\/urbag.eu\/?p=3086"},"modified":"2025-06-16T14:52:59","modified_gmt":"2025-06-16T12:52:59","slug":"new-preprint-effect-of-land-use-changes-on-air-quality-impacts-of-urbanization-urban-vegetation-and-agriculture-2","status":"publish","type":"post","link":"https:\/\/webs.uab.cat\/atmosphere\/2025\/06\/16\/new-preprint-effect-of-land-use-changes-on-air-quality-impacts-of-urbanization-urban-vegetation-and-agriculture-2\/","title":{"rendered":"New preprint: Effect of land use changes on air quality: Impacts of urbanization, urban vegetation, and agriculture"},"content":{"rendered":"

 <\/p>\n

A new paper has been posted as a preprint on the Research Square platform.<\/p>\n

See full article\/ Veure l’article complet<\/strong><\/a><\/p>\n

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English:<\/strong><\/p>\n

Urbanization transforms natural landscapes into impervious surfaces, altering local climate and air quality. Greening strategies are increasingly adopted to mitigate these effects, yet their efficacy depends on complex interactions among land use, urban form, geography, and climate. Using an air quality model with an urban canopy scheme, we assess how changes in land use\u2014urban expansion, agriculture, and urban parks\u2014affect urban climate (temperature, wind) and chemical processes (dry deposition, biogenic emissions), ultimately influencing air pollutants (NO2 , O3 , VOC, and PMs). Applied to future land-use scenarios from the Urban Master Plan of the Metropolitan Area of Barcelona, our results show that increasing urbanization elevates surface temperatures and enhances evening O3 levels by up to 8%. Replacing urban areas with agriculture or parks reduces O3 (up to 10%) via increased evapotranspiration and enhanced dry deposition, yet raises NH 3 (up to 90%) and aerosols (up to 12%) from fertilizers. Urban greening increases O3 (up to 5%) and SOA (up to 14%) from biogenic VOCs. Irrigation further boosts plant deposition, raising NO2 and VOCs (up to 10%), and lowering O3 by 6%. Our findings highlight the trade-offs of urban greening and underscore the need for integrated planning to improve air quality.<\/p>\n

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Catal\u00e0:<\/strong><\/p>\n

La urbanitzaci\u00f3 transforma els paisatges naturals en superf\u00edcies impermeables, alterant el clima local i la qualitat de l\u2019aire. Cada cop s\u2019adopten m\u00e9s estrat\u00e8gies de reverdit per mitigar aquests efectes, per\u00f2 la seva efic\u00e0cia dep\u00e8n d\u2019interaccions complexes entre l\u2019\u00fas del s\u00f2l, la forma urbana, la geografia i el clima. Utilitzant un model de qualitat de l\u2019aire amb un esquema de cap\u00e7alera urbana, avaluem com els canvis en l\u2019\u00fas del s\u00f2l \u2014l\u2019expansi\u00f3 urbana, l\u2019agricultura i els parcs urbans\u2014 afecten el clima urb\u00e0 (temperatura, vent) i els processos qu\u00edmics (dip\u00f2sit sec, emissions biog\u00e8niques), influint finalment en els contaminants atmosf\u00e8rics (NO\u2082, O\u2083, COV i part\u00edcules en suspensi\u00f3). Aplicant escenaris futurs d\u2019\u00fas del s\u00f2l provinents del Pla Director Urban\u00edstic de l\u2019\u00c0rea Metropolitana de Barcelona, els nostres resultats mostren que l\u2019increment de la urbanitzaci\u00f3 eleva les temperatures superficials i augmenta els nivells d\u2019O\u2083 al vespre fins a un 8%. Substituir \u00e0rees urbanes per agricultura o parcs redueix l\u2019O\u2083 (fins a un 10%) mitjan\u00e7ant l\u2019augment de l\u2019evapotranspiraci\u00f3 i el dip\u00f2sit sec, per\u00f2 incrementa l\u2019NH\u2083 (fins a un 90%) i els aerosols (fins a un 12%) provinents dels fertilitzants. El reverdit urb\u00e0 incrementa l\u2019O\u2083 (fins a un 5%) i els SOA (fins a un 14%) degut als COV biog\u00e8nics. El reg augmenta encara m\u00e9s el dip\u00f2sit vegetal, elevant els NO\u2082 i els COV (fins a un 10%) i reduint l\u2019O\u2083 en un 6%. Les nostres troballes posen de manifest els compromisos del reverdit urb\u00e0 i subratllen la necessitat d\u2019una planificaci\u00f3 integrada per millorar la qualitat de l\u2019aire.<\/p>\n

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Figure: Biogenic emissions average changes due to urbanization (URB-REF), agriculture (AGR-REF) and urban parks (PARK-REF). For the biogenic emissions analysis the 6-21 UTC has been chosen because are the time of the day that these processes are more significant. \/ Canvis mitjans en les emissions biog\u00e8niques deguts a la urbanitzaci\u00f3 (URB-REF), l\u2019agricultura (AGR-REF) i els parcs urbans (PARK-REF). Per a l\u2019an\u00e0lisi de les emissions biog\u00e8niques s\u2019ha escollit el per\u00edode de 6 a 21 UTC, ja que \u00e9s el moment del dia en qu\u00e8 aquests processos s\u00f3n m\u00e9s significatius.<\/p>\n","protected":false},"excerpt":{"rendered":"

Title: Effect of land use changes on air quality: Impacts of urbanization, urban vegetation, and agriculture \/
\nUrbanization transforms natural landscapes into impervious surfaces, altering local climate and air quality. Greening strategies are increasingly adopted to mitigate these effects, yet their efficacy depends on complex interactions among land use, urban form, geography, and climate. <\/p>\n","protected":false},"author":3153,"featured_media":3090,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[144,7,16,157,21,424,9,146,406,407,425,147],"class_list":["post-3086","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-air-quality","tag-amb","tag-barcelona","tag-climate","tag-co2","tag-land-use","tag-no2","tag-o3","tag-pm10","tag-pm2-5","tag-pms","tag-voc"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/3086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/users\/3153"}],"replies":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/comments?post=3086"}],"version-history":[{"count":0,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/3086\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media\/3090"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media?parent=3086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/categories?post=3086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/tags?post=3086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}