Journal ArticleDOI
Responses of PM2.5 and O3 concentrations to changes of meteorology and emissions in China
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TLDR
It is found that emission reductions in 2014 and 2015 effectively reduced PM2.5 concentrations by 23.9 and 43.5 μg/m3, respectively, but was partially counteracted by unfavorable meteorology, highlighting the importance of appropriate joint reduction of NOx and VOCs to simultaneously decrease O3 and PM 2.5 for higher air quality.About:
This article is published in Science of The Total Environment.The article was published on 2019-04-20. It has received 141 citations till now. The article focuses on the topics: CMAQ & Air quality index.read more
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Effect of restricted emissions during COVID-19 on air quality in India.
TL;DR: Confidence is given to the regulatory bodies that even during unfavourable meteorology, a significant improvement in air quality could be expected if strict execution of air quality control plans is implemented.
Journal ArticleDOI
Severe air pollution events not avoided by reduced anthropogenic activities during COVID-19 outbreak
Pengfei Wang,Pengfei Wang,Kaiyu Chen,Shengqiang Zhu,Peng Wang,Hongliang Zhang,Hongliang Zhang +6 more
TL;DR: It is highlighted that large emissions reduction in transportation and slight reduction in industrial would not help avoid severe air pollution in China, especially when meteorology is unfavorable and more efforts should be made to completely avoid severeAir pollution.
Journal ArticleDOI
Nitrate dominates the chemical composition of PM2.5 during haze event in Beijing, China.
Qingcheng Xu,Shuxiao Wang,Jingkun Jiang,Noshan Bhattarai,Xiaoxiao Li,Xing Chang,Xionghui Qiu,Mei Zheng,Yang Hua,Jiming Hao +9 more
TL;DR: Water-soluble inorganic ions (WSI), a major component of PM2.5, often increased rapidly during the haze event in Beijing, and it is indicated that nitrate is more important than sulfate as a driver for the growth of PM 2.5 during the period of heavy air pollution in winter.
Journal ArticleDOI
Worsening urban ozone pollution in China from 2013 to 2017 – Part 1: The complex and varying roles of meteorology
Yiming Liu,Tao Wang +1 more
TL;DR: In this article, the authors conducted numerical experiments with an up-to-date regional chemical transport model to assess the contribution of changes in meteorological conditions and anthropogenic emissions to the summer ozone level from 2013 to 2017 in various regions of China.
Journal ArticleDOI
Worsening urban ozone pollution in China from 2013 to 2017 – Part 2: The effects of emission changes and implications for multi-pollutant control
Yiming Liu,Tao Wang +1 more
TL;DR: In this article, the authors evaluated the effect of changes in multi-pollutant emissions from anthropogenic activities on surface ozone (O3) levels during the same period by using an up-to-date regional chemical transport model (WRF-CMAQ)driven by an interannual anthropogenic emission inventory.
References
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Atmospheric chemistry and physics: from air pollution to climate change.
TL;DR: In this article, the authors present a model for the chemistry of the Troposphere of the atmosphere and describe the properties of the Atmospheric Aqueous phase of single aerosol particles.
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Atmospheric Chemistry and Physics: From Air Pollution to Climate Change
TL;DR: In this paper, the authors present a model for the chemistry of the Troposphere of the atmosphere and describe the properties of the Atmospheric Aqueous phase of single aerosol particles.
Journal ArticleDOI
High secondary aerosol contribution to particulate pollution during haze events in China
Ru-Jin Huang,Yan-Lin Zhang,Carlo Bozzetti,Kin Fai Ho,Junji Cao,Yongming Han,Kaspar R. Daellenbach,Jay G. Slowik,Stephen Matthew Platt,Francesco Canonaco,Peter Zotter,Robert Wolf,Simone M. Pieber,Emily A. Bruns,Monica Crippa,Giancarlo Ciarelli,Andrea Piazzalunga,Margit Schwikowski,Gülcin Abbaszade,Jürgen Schnelle-Kreis,Ralf Zimmermann,Zhisheng An,Sönke Szidat,Urs Baltensperger,Imad El Haddad,André S. H. Prévôt +25 more
TL;DR: The results suggest that, in addition to mitigating primary particulate emissions, reducing the emissions of secondary aerosol precursors from fossil fuel combustion and biomass burning is likely to be important for controlling China’s PM2.5 levels and for reducing the environmental, economic and health impacts resulting from particulate pollution.
Journal ArticleDOI
Human health effects of air pollution
Marilena Kampa,Elias Castanas +1 more
TL;DR: Air pollution has both acute and chronic effects on human health, affecting a number of different systems and organs, and ranges from minor upper respiratory irritation to chronic respiratory and heart disease, lung cancer, acute respiratory infections in children and chronic bronchitis in adults.
Journal ArticleDOI
Atmospheric chemistry of VOCs and NOx
TL;DR: The present status of knowledge of the gas phase reactions of inorganic Ox, Hox and NOx species and of selected classes of volatile organic compounds (VOCs) and their degradation products in the troposphere is discussed in this paper.
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