Journal ArticleDOI
Characterizations of ozone, NOx, and VOCs measured in Shanghai, China
TLDR
In this paper, a chemical mechanism model was applied to assess the sensitivity of the O3 formation to NOx and VOC concentrations in Shanghai, and the results showed that O3 concentrations are higher in rural area than in center of the city, suggesting that there are O3 depression processes in the center of city and air pollutant emissions are not favorable for the chemical formation.About:
This article is published in Atmospheric Environment.The article was published on 2008-09-01. It has received 202 citations till now. The article focuses on the topics: NOx.read more
Citations
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Journal ArticleDOI
Ozone pollution in China: A review of concentrations, meteorological influences, chemical precursors, and effects
TL;DR: This review summarizes the main findings from published papers on the characteristics and sources and processes of ozone and ozone precursors in the boundary layer of urban and rural areas of China, including concentration levels, seasonal variation, meteorology conducive to photochemistry and pollution transport, key production and loss processes, ozone dependence on nitrogen oxides and volatile organic compounds, and the effects of ozone on crops and human health.
Journal ArticleDOI
Ozone and fine particle in the western Yangtze River Delta: an overview of 1 yr data at the SORPES station
Aijun Ding,Congbin Fu,Xiu-Qun Yang,Jianqi Sun,Longfei Zheng,Yuning Xie,Erik Herrmann,Erik Herrmann,Wei Nie,Tuukka Petäjä,V.-M. Kerminen,Markku Kulmala +11 more
TL;DR: In this article, the authors present an overview of 1 yr measurements of ozone (O3) and fine particular matter (PM2.5) and related trace gases at a recently developed regional background site, the Station for Observing Regional Processes of the Earth System (SORPES), in the western part of the Yangtze River Delta (YRD) in eastern China.
Journal ArticleDOI
Characteristics and source apportionment of VOCs measured in Shanghai, China
TL;DR: In this article, a receptor model (PMF; positive matrix factorization) coupled with the information related to VOC sources (the distribution of major industrial complex, meteorological conditions, etc.) is applied to identify the major VOC source in Shanghai.
Journal ArticleDOI
Ground-level ozone pollution and its health impacts in China
Huan Liu,Huan Liu,Shuai Liu,Boru Xue,Zhaofeng Lv,Zhi-Hang Meng,Xiaofan Yang,Tao Xue,Qiao Yu,Kebin He +9 more
TL;DR: Wang et al. as mentioned in this paper simulated and analyzed spatiotemporal distribution of ozone and exposure level by the Weather Research and Forecasting (WRF)-Community Multiscale Air Quality (CMAQ) models and monitoring data from 1516 national air quality monitoring stations in China during 2015.
Journal ArticleDOI
Air pollution trends over Indian megacities and their local-to-global implications
TL;DR: In this article, emissions and concentration trends of criteria and other air pollutants (polycyclic aromatic hydrocarbons, carbon monoxide and greenhouse gases) were examined in the three Indian megacities.
References
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Chemical kinetics and photochemical data for use in stratospheric modeling
W. B. Demore,J. J. Margitan,Mario J. Molina,R. T. Watson,D. M. Golden,R. F. Hampson,Michael J. Kurylo,Carleton J. Howard,A. R. Ravishankara +8 more
TL;DR: As part of a series of evaluated sets, rate constants and photochemical cross sections compiled by the NASA Panel for Data Evaluation are provided in this article, with particular emphasis on the ozone layer and its possible perturbation by anthropogenic and natural phenomena.
Journal ArticleDOI
The use of NO y , H2O2, and HNO3 as indicators for ozone‐NO x ‐hydrocarbon sensitivity in urban locations
TL;DR: In this article, a series of photochemical simulations with varying rates of anthropogenic and biogenic emissions and meteorology were used to evaluate the goodness of fit between model NOx-hydrocarbon sensitivity and indicator values.
Book ChapterDOI
The Role of Solar Radiation in Atmospheric Chemistry
Sasha Madronich,S. J. Flocke +1 more
TL;DR: In this article, the photo-dissociation rate coefficients (J values) are used to understand the behavior of global stratospheric and tropospheric ozone, the atmospheric lifetimes of gases such as carbon monoxide, methane, and non-methane hydrocarbons, and the formation of oxidants at urban and regional scales.
Journal ArticleDOI
Permutation reactions of organic peroxy radicals in the troposphere
Sasha Madronich,Jack G. Calvert +1 more
TL;DR: In this paper, a simplified method of representing the large number of atmospheric peroxy radical permutation reactions was developed, and the potential importance of these reactions was studied for relatively low NOx conditions such as may be observed in the marine planetary boundary layer (PBL) and the Amazon PBL.
Journal ArticleDOI
Long-term trend of visibility and its characterizations in the Pearl River Delta (PRD) region, China
Xuejiao Deng,Xuejiao Deng,Xuexi Tie,Dui Wu,Xiuji Zhou,Xueyan Bi,Hanbo Tan,Fei Li,Chenglin Jiang +8 more
TL;DR: In this paper, a long-term trend of visibility in Guangzhou (one of the largest cities in PRD) shows that between 1954 and 2006, there is a rapid change in visibility.