Long-term changes of regional ozone in China

Implications for human health and ecosystem impacts

Bibliographic Data

ID19568675
AuthorsXiaobin Xu (0009-0000-8310-1509, Chinese Academy of Meteorological Sciences), Weili Lin (0000-0002-2900-8204, China Meteorological Administration), Wanyun Xu (0000-0003-4787-1754, Chinese Academy of Meteorological Sciences), Junli Jin (0000-0002-1357-5300, China Meteorological Administration), Ying Wang (0000-0003-3126-1134, Chinese Academy of Meteorological Sciences), Gen Zhang (0000-0002-2616-9483, Chinese Academy of Meteorological Sciences), Xiaochun Zhang (0000-0001-6334-6525, China Meteorological Administration), Zhiqiang Ma (0000-0002-6492-0733, China Meteorological Administration), Yuanzhen Dong (5Waliguan Observatory, Qinghai Meteorological Bureau, Xining, CN), Dong Yuanzhen (Qinghai Meteorological Bureau), Qianli Ma (0000-0002-4709-4927), Dajiang Yu (0000-0002-7441-5239, 7Longfengshan Regional Atmosphere Background Station, Wuchang, CN), Zou Li (8Diqing Meteorological Bureau, Diqing, CN), Li Zou (0000-0001-6226-590X, Beijing Meteorological Bureau), Dingding Wang (0000-0003-3336-5682, Beijing Meteorological Bureau), Huarong Zhao (0000-0002-4265-7065, Chinese Academy of Meteorological Sciences)
EditorsDetlev Helmig (0000-0003-1612-1651), Alastair Lewis
Year2020
Volume8
Publication date2020-01-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueElementa Science of the Anthropocene (JOURNAL)
Journal identifiersISSN: 2325-1026 • E-ISSN: 2325-1026
PublisherUniversity of California Press (PUBLISHER • US)
DOI10.1525/elementa.409
OpenAlexW3014091201
LanguageEN
Citations received3
References cited65

The first Tropospheric Ozone Assessment Report (TOAR) provides information on present-day distributions and long-term trends of ozone metrics relevant for climate change, human health, and vegetation. However, only few results are available in TOAR for China due to limited long-term ozone observations. Here, we present an integrated analysis of long-term measurements of surface ozone from eight sites distributed in the North China Plain (NCP) and Yangtze River Delta (YRD), the relatively underdeveloped region Northeast China, and the remote regions in Northwest and Southwest China. Trends and present-day values for seven annual and five seasonal ozone metrics were calculated following the TOAR methodologies. We compare the seasonal and diurnal cycles of ozone concentrations as well as the present-day values of ozone among sites and discuss the long-term trends in the ozone metrics. Large and significant increases of ozone are detected at the background site in the NCP, moderate increases at the global baseline site in western China, significant decreases at the northwestern edge of China, and nearly no trend at other sites. Extremely high values of ozone occurred in the NCP and YRD, particularly in warmer seasons. The present-day levels of summer ozone metrics in the NCP are much higher than the thresholds set in TOAR for the highest value groups of ozone metrics. The summer ozone metrics at the Shangdianzi background site in the NCP indicate increases at rates of more than 2%/yr during 2004–2016. In contrast, ozone at the Lin’an background site in the YRD was constant over the period 2006–2016. Our results fill some knowledge gaps in spatiotemporal changes of ozone in China and may be of useful in the assessment of ozone impacts on human health and vegetation

Atmospheric sciences · Biology · China · Climatology · Delta · Ecosystem · Geography · Meteorology · Ozone · Physical geography · Tropospheric ozone · Atmospheric chemistry and aerosols · Atmospheric Ozone and Climate · Climate variability and models · Environmental Science · Ecology

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