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1. www.nature.com › articles › s41612/017/0010-8Urban atmospheric chemistry: a very special case for study

   www.nature.com › articles › s41612/017/0010-8

   Jan 9, 2018 · Abstract. Studies of the chemistry of the urban atmosphere provide special challenges which arise from the high density of emissions, strong concentration gradients and relatively...

2. agupubs.onlinelibrary.wiley.com › doi › fullUrbanization Impacts on Evapotranspiration Across Various ...

   agupubs.onlinelibrary.wiley.com › doi › full

   Jul 14, 2021 · The normalized urban area (i.e., the ratio between urban area and the total area: sum of the urban and the surrounding non-urban zones) has a negative coefficient in the regression model. This variable shows how dense/scattered the urban areas are with in a climate division.

   • Author: Amirhossein Mazrooei, Meredith Reitz, Dingbao Wang, A. Sankarasubramanian

   • Publish Year: 2021

3. People also ask

   Are hydroxyl radicals different in urban and regional atmospheric chemistry?

   • Some key species such as the hydroxyl radical have different predominant source processes in the urban and the regional atmosphere. A case is made that the differences are so large that urban atmospheric chemistry needs to be given special treatment and cannot simply be considered as subtlely different from regional and global atmosphere studies.

   Urban atmospheric chemistry: a very special case for study

   www.nature.com/articles/s41612-017-0010-8

   See all results for this question

   What causes air pollution in urban areas?

   • High levels of primary emissions. Historically these were domestic emissions, and in some less developed countries, these remain a major source. Nowadays, the high volumes of road traffic within urban areas often dominate the urban air pollution climate. Strong concentrations gradients.

   Urban atmospheric chemistry: a very special case for study

   www.nature.com/articles/s41612-017-0010-8

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   How does Chlorine Chemistry affect air quality in urban environments?

   • In urban atmospheres, the reactions of chlorine radicals can lead to effects such as increases in ozone production, thus degrading local and regional air quality. This review summarises the current understanding of atmospheric chlorine chemistry in urban environments and identifies key unresolved issues. Abstract.

   Chlorine chemistry in urban atmospheres: a review - Semantic Scholar

   pdfs.semanticscholar.org/baac/f20bf60b410875c387fda8c3060b403d20a5.pdf

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   How does urban atmosphere differ from rural atmosphere?

   • Unlike the rural atmosphere, which is typically rather well mixed, the strong spatial gradients in the urban atmosphere can lead to substantial differences in concentrations over small distance scales. It is important to establish the range over which any individual measurement point is representative of the locality.

   Urban atmospheric chemistry: a very special case for study

   www.nature.com/articles/s41612-017-0010-8

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4. onlinelibrary.wiley.com › doi › bookMapping the Chemical Environment of Urban Areas | Wiley ...

   onlinelibrary.wiley.com › doi › book

   Mar 31, 2011 · About this book. This comprehensive text focuses on the increasingly important issues of urban geochemical mapping with key coverage of the distribution and behaviour of chemicals and compounds in the urban environment.

5. link.springer.com › chapter › 10Urban Atmospheric Chemistry with the EPISODE-CityChem Model

   link.springer.com › chapter › 10

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   Nov 14, 2021 · Abstract. Photochemical ozone production in the urban area of Hamburg, Germany, was investigated using detailed emission inventories of ozone precursors and an urban-scale chemistry-transport model. Within the urban area, traffic-related emissions of nitric oxide destroy much of the inflowing ozone, mainly at night, leading to minimum ...

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7. pdfs.semanticscholar.org › baac › f20bf60b410875c387Chlorine chemistry in urban atmospheres: a review

   pdfs.semanticscholar.org › baac › f20bf60b410875c387

   A growing body of observations and modelling studies, how-ever, indicates that halogen radicals, particularly the chlorine radical and related species, can play a significant role in urban atmospheric chemistry.

8. www.frontiersin.org › articles › 10Frontiers | Editorial: Atmospheric chemistry in the urban air

   www.frontiersin.org › articles › 10

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   Feb 17, 2023 · Atmospheric chemistry in the urban air. Urban atmospheric chemical processes directly affect air quality of megacities. Owing to the synergistic effect of various pollutants in urban atmosphere, urban air pollution is complex and puzzling. Sustainable urban development is being hindered and urban air quality is deteriorating.

9. www.semanticscholar.org › paper › Urban-atmosphericUrban atmospheric chemistry: a very special case for study

   www.semanticscholar.org › paper › Urban-atmospheric

   Jan 9, 2018 · Urban air chemistry is characterized by measurements of gas and aerosol composition. These measurements are interpreted from a long history for laboratory and theoretical studies integrating chemical …