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Advances in air quality research – current and emerging challenges

Atmospheric chemistry and physics, 2022-04, Vol.22 (7), p.4615-4703 [Peer Reviewed Journal]

COPYRIGHT 2022 Copernicus GmbH ;2022. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1680-7324 ;ISSN: 1680-7316 ;EISSN: 1680-7324 ;DOI: 10.5194/acp-22-4615-2022

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Title:
Advances in air quality research – current and emerging challenges
Author: Sokhi, Ranjeet S ; Moussiopoulos, Nicolas ; Baklanov, Alexander ; Bartzis, John ; Coll, Isabelle ; Finardi, Sandro ; Friedrich, Rainer ; Geels, Camilla ; Grönholm, Tiia ; Halenka, Tomas ; Ketzel, Matthias ; Maragkidou, Androniki ; Matthias, Volker ; Moldanova, Jana ; Ntziachristos, Leonidas ; Schäfer, Klaus ; Suppan, Peter ; Tsegas, George ; Carmichael, Greg ; Franco, Vicente ; Hanna, Steve ; Jalkanen, Jukka-Pekka ; Velders, Guus J. M ; Kukkonen, Jaakko
Subjects: Air exposure ; Air pollution ; Air quality ; Air quality forecasting ; Air quality management ; Air quality models ; Analysis ; Atmospheric pollution ; Climate change ; Climate models ; Components ; Connecting ; COVID-19 ; Crutzen, Paul J ; Dynamic models ; Emission inventories ; Emissions ; Environmental impact ; Environmental policy ; Environmental Sciences ; Global temperature changes ; Ground-based observation ; Heating ; Indoor air pollution ; Industrial plant emissions ; Instrumentation ; Instruments ; International conferences ; Long-range transport ; Meteorology ; Modelling ; Nitrogen dioxide ; Nobel prizes ; Nuclear power plants ; Nuclear war ; Nuclear winter ; Outdoor air quality ; Pandemics ; Particulate emissions ; Particulate matter ; Particulate matter emissions ; Particulate matter sources ; Policies ; Pollutants ; Pollution dispersion ; Pollution gradients ; Pollution sources ; Population ; Quality ; Quality assessment ; Quality management ; Remote sensing ; Reviews ; Satellite-borne instruments ; Satellites ; Shipping ; Suspended particulate matter ; Traffic ; Trends ; Urban areas ; VOCs ; Volatile organic compounds ; World War I
Is Part Of: Atmospheric chemistry and physics, 2022-04, Vol.22 (7), p.4615-4703
Description: This review provides a community's perspective on air quality research focusing mainly on developments over the past decade. The article provides perspectives on current and future challenges as well as research needs for selected key topics. While this paper is not an exhaustive review of all research areas in the field of air quality, we have selected key topics that we feel are important from air quality research and policy perspectives. After providing a short historical overview, this review focuses on improvements in characterizing sources and emissions of air pollution, new air quality observations and instrumentation, advances in air quality prediction and forecasting, understanding interactions of air quality with meteorology and climate, exposure and health assessment, and air quality management and policy. In conducting the review, specific objectives were (i) to address current developments that push the boundaries of air quality research forward, (ii) to highlight the emerging prominent gaps of knowledge in air quality research, and (iii) to make recommendations to guide the direction for future research within the wider community. This review also identifies areas of particular importance for air quality policy. The original concept of this review was borne at the International Conference on Air Quality 2020 (held online due to the COVID 19 restrictions during 18–26 May 2020), but the article incorporates a wider landscape of research literature within the field of air quality science. On air pollution emissions the review highlights, in particular, the need to reduce uncertainties in emissions from diffuse sources, particulate matter chemical components, shipping emissions, and the importance of considering both indoor and outdoor sources. There is a growing need to have integrated air pollution and related observations from both ground-based and remote sensing instruments, including in particular those on satellites. The research should also capitalize on the growing area of low-cost sensors, while ensuring a quality of the measurements which are regulated by guidelines. Connecting various physical scales in air quality modelling is still a continual issue, with cities being affected by air pollution gradients at local scales and by long-range transport. At the same time, one should allow for the impacts from climate change on a longer timescale. Earth system modelling offers considerable potential by providing a consistent framework for treating scales and processes, especially where there are significant feedbacks, such as those related to aerosols, chemistry, and meteorology. Assessment of exposure to air pollution should consider the impacts of both indoor and outdoor emissions, as well as application of more sophisticated, dynamic modelling approaches to predict concentrations of air pollutants in both environments. With particulate matter being one of the most important pollutants for health, research is indicating the urgent need to understand, in particular, the role of particle number and chemical components in terms of health impact, which in turn requires improved emission inventories and models for predicting high-resolution distributions of these metrics over cities. The review also examines how air pollution management needs to adapt to the above-mentioned new challenges and briefly considers the implications from the COVID-19 pandemic for air quality. Finally, we provide recommendations for air quality research and support for policy.
Publisher: Katlenburg-Lindau: Copernicus GmbH
Language: English
Identifier: ISSN: 1680-7324
ISSN: 1680-7316
EISSN: 1680-7324
DOI: 10.5194/acp-22-4615-2022
Source: Geneva Foundation Free Medical Journals at publisher websites
AUTh Library subscriptions: ProQuest Central
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Alma/SFX Local Collection
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Advances in air quality research – current and emerging challenges

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