{"id":3228,"date":"2025-12-29T11:57:42","date_gmt":"2025-12-29T09:57:42","guid":{"rendered":"https:\/\/urbag.eu\/?p=3228"},"modified":"2025-12-29T11:57:42","modified_gmt":"2025-12-29T09:57:42","slug":"new-publication-in-urban-sustainability","status":"publish","type":"post","link":"https:\/\/webs.uab.cat\/atmosphere\/2025\/12\/29\/new-publication-in-urban-sustainability\/","title":{"rendered":"New publication in “Urban Sustainability”"},"content":{"rendered":"

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

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

Urbanization converts natural landscapes into impervious surfaces, altering local climate and air quality. Greening strategies are adopted to mitigate these effects, yet their effectiveness depends on land use, urban form, geography, and climate interactions. Using an air quality model with an urban canopy scheme, we evaluate how land use changes-urban expansion, agriculture, and parks-affect urban climate and chemical processes, influencing air pollutants like NO2<\/sub>, O3<\/sub>, VOCs, and PMs.<\/p>\n

Applied to future land-use scenarios in the Metropolitan Area of Barcelona, our results show that a 45\u201355% increase in urbanization raises surface temperatures and consequently evening O3<\/sub>\u00a0levels by up to 8%. Replacing 6\u201310% of urban land and 30\u201340% of natural vegetation areas into agriculture reduces O3<\/sub>\u00a0by up to 10%, but increases NH3<\/sub>\u00a0(up to 90%) and aerosols (up to 12%). Doubling urban green spaces reduce NO2<\/sub>\u00a0(up to 3%) and increases O3<\/sub>\u00a0(up to 5%) and SOA (up to 14%). Our study emphasizes the trade-offs of urban greening and 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’aire. S’adopten estrat\u00e8gies de renaturalitzaci\u00f3 (greening strategies<\/i>) per mitigar aquests efectes, tot i que la seva efectivitat dep\u00e8n de l’\u00fas del s\u00f2l, la forma urbana, la geografia i les interaccions clim\u00e0tiques. Utilitzant un model de qualitat de l’aire amb un esquema de coberta urbana, avaluem com els canvis en l’\u00fas del s\u00f2l \u2014expansi\u00f3 urbana, agricultura i parcs\u2014 afecten el clima urb\u00e0 i els processos qu\u00edmics, influint en contaminants atmosf\u00e8rics com el NO\u2082, l’O\u2083, els VOCs i les PM.<\/p>\n

Aplicat a escenaris futurs d’\u00fas del s\u00f2l a l’\u00c0rea Metropolitana de Barcelona, els nostres resultats mostren que un augment del 45\u201355% de la urbanitzaci\u00f3 eleva les temperatures superficials i, conseq\u00fcentment, els nivells d’O\u2083 al vespre fins a un 8%. Substituir un 6\u201310% de s\u00f2l urb\u00e0 i un 30\u201340% d’\u00e0rees de vegetaci\u00f3 natural per agricultura redueix l’O\u2083 fins a un 10%, per\u00f2 augmenta l’NH\u2083 (fins a un 90%) i els aerosols (fins a un 12%). Duplicar els espais verds urbans redueix el NO\u2082 (fins a un 3%) i augmenta l’O\u2083 (fins a un 5%) i els SOA (fins a un 14%). El nostre estudi destaca els efectes contraposats (trade-offs<\/i>) de la renaturalitzaci\u00f3 urbana i la necessitat d’una planificaci\u00f3 integrada per millorar la qualitat de l’aire.<\/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.<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Title: Effect of land use changes on air quality: impacts of urbanization, urban vegetation, and agriculture \/
\nUrbanization converts natural landscapes into impervious surfaces, altering local climate and air quality. Greening strategies are adopted to mitigate these effects, yet their effectiveness depends on land use, urban form, geography, and climate interactions.<\/p>\n","protected":false},"author":3153,"featured_media":2920,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[468,440,7,229,441,333,442,469,9,146,218,165,248,62,169],"class_list":["post-3228","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-aerosols","tag-air-quality-model","tag-amb","tag-article","tag-health","tag-metropolitan-area-of-barcelona","tag-mortality","tag-nh3","tag-no2","tag-o3","tag-pm","tag-urban-canopy","tag-vegetation","tag-wrf","tag-wrf-chem"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/3228","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=3228"}],"version-history":[{"count":0,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/3228\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media\/2920"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media?parent=3228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/categories?post=3228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/tags?post=3228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}