scholarly journals Typhoon-boosted biogenic emission aggravates cross-regional ozone pollution in China

2022 ◽  
Vol 8 (2) ◽  
Author(s):  
Nan Wang ◽  
Xin Huang ◽  
Jiawei Xu ◽  
Tong Wang ◽  
Zhe-min Tan ◽  
...  
Keyword(s):  
Ozone Pollution ◽  
Biogenic Emission

Enhanced anthropogenic and biogenic interaction by approaching typhoons deteriorates cross-regional ozone pollution in China.

scholarly journals Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017

2019 ◽  
Vol 19 (19) ◽  
pp. 12195-12207 ◽  
Author(s):  
Mingchen Ma ◽  
Yang Gao ◽  
Yuhang Wang ◽  
Shaoqing Zhang ◽  
L. Ruby Leung ◽  
...  
Keyword(s):  
Land Cover ◽  
Land Cover Change ◽  
North China Plain ◽  
Urban Landscape ◽  
Heat Waves ◽  
Biogenic Emissions ◽  
Ozone Pollution ◽  
Biogenic Emission ◽  
The North ◽  
Ozone Episodes

Abstract. In the summer of 2017, heavy ozone pollution swamped most of the North China Plain (NCP), with the maximum regional average of daily maximum 8 h ozone concentration (MDA8) reaching almost 120 ppbv. In light of the continuing reduction of anthropogenic emissions in China, the underlying mechanisms for the occurrences of these regional extreme ozone episodes are elucidated from two perspectives: meteorology and biogenic emissions. The significant positive correlation between MDA8 ozone and temperature, which is amplified during heat waves concomitant with stagnant air and no precipitation, supports the crucial role of meteorology in driving high ozone concentrations. We also find that biogenic emissions are enhanced due to factors previously not considered. During the heavy ozone pollution episodes in June 2017, biogenic emissions driven by high vapor pressure deficit (VPD), land cover change and urban landscape yield an extra mean MDA8 ozone of 3.08, 2.79 and 4.74 ppbv, respectively, over the NCP, which together contribute as much to MDA8 ozone as biogenic emissions simulated using the land cover of 2003 and ignoring VPD and urban landscape. In Beijing, the biogenic emission increase due to urban landscape has a comparable effect on MDA8 ozone to the combined effect of high VPD and land cover change between 2003 and 2016. In light of the large effect of urban landscape on biogenic emission and the subsequent ozone formation, the types of trees may be cautiously selected to take into account of the biogenic volatile organic compound (BVOC) emission during the afforestation of cities. This study highlights the vital contributions of heat waves, land cover change and urbanization to the occurrence of extreme ozone episodes, with significant implications for ozone pollution control in a future when heat wave frequency and intensity are projected to increase under global warming.

OZONE POLLUTION AND THE EFFECTS ON CROP YIELDS AT A COASTAL SITE IN THE YANGTZE DELTA

2013 ◽  
Vol 12 (12) ◽  
pp. 2331-2337
Author(s):  
Wenpo Shan ◽  
Haixia Lu ◽  
Pengyan Liu ◽  
Zhanchen Li ◽  
Da Lu ◽  
...  
Keyword(s):  
Crop Yields ◽  
Ozone Pollution ◽  
Yangtze Delta ◽  
Coastal Site

Ozone pollution: a ‘hidden’ environmental layer for athletes preparing for the Tokyo 2020 Olympic & Paralympics

2020 ◽  
pp. bjsports-2020-103360
Author(s):  
Gareth N Sandford ◽  
Trent Stellingwerff ◽  
Michael Stephen Koehle
Keyword(s):  
Ozone Pollution

scholarly journals Spatial–Temporal Distribution Variation of Ground-Level Ozone in China’s Pearl River Delta Metropolitan Region

2021 ◽  
Vol 18 (3) ◽  
pp. 872
Author(s):  
An Zhang ◽  
Jinhuang Lin ◽  
Wenhui Chen ◽  
Mingshui Lin ◽  
Chengcheng Lei
Keyword(s):  
Ozone Concentration ◽  
Pearl River Delta ◽  
Temporal Distribution ◽  
Ground Level ◽  
Metropolitan Region ◽  
Pearl River ◽  
Ozone Pollution ◽  
Ground Level Ozone ◽  
Ozone Concentrations ◽  
The North

Long-term exposure to ozone pollution will cause severe threats to residents’ physical and mental health. Ground-level ozone is the most severe air pollutant in China’s Pearl River Delta Metropolitan Region (PRD). It is of great significance to accurately reveal the spatial–temporal distribution characteristics of ozone pollution exposure patterns. We used the daily maximum 8-h ozone concentration data from PRD’s 55 air quality monitoring stations in 2015 as input data. We used six models of STK and ordinary kriging (OK) for the simulation of ozone concentration. Then we chose a better ozone pollution prediction model to reveal the ozone exposure characteristics of the PRD in 2015. The results show that the Bilonick model (BM) model had the highest simulation precision for ozone in the six models for spatial–temporal kriging (STK) interpolation, and the STK model’s simulation prediction results are significantly better than the OK model. The annual average ozone concentrations in the PRD during 2015 showed a high spatial variation in the north and east and low in the south and west. Ozone concentrations were relatively high in summer and autumn and low in winter and spring. The center of gravity of ozone concentrations tended to migrate to the north and west before moving to the south and then finally migrating to the east. The ozone’s spatial autocorrelation was significant and showed a significant positive correlation, mainly showing high-high clustering and low-low clustering. The type of clustering undergoes temporal migration and conversion over the four seasons, with spatial autocorrelation during winter the most significant.

scholarly journals Distance from the outbreak of infection, ozone pollution and public health consequences of SARS-CoV-2 epidemic

2020 ◽  
Author(s):  
Giovanni Tripepi ◽  
Mario Plebani ◽  
Giorgio Iervasi ◽  
Mercedes Gori ◽  
Daniela Leonardis ◽  
...  
Keyword(s):  
Public Health ◽  
Ozone Pollution ◽  
Health Consequences ◽  
The Public ◽  
Italian Provinces ◽  
Breakpoint Analysis ◽  
The Relationship ◽  
The City ◽  
Italian Province ◽  
Optimal Radius

Abstract Background Italy was the second country in the world, after China, to be hit by SARS-CoV-2 pandemic. The Italy’s experience teaches that steps to limit people’s movement by imposing “red zones” need to be put in place early by carefully identifying the cities to be included within these areas of quarantine. The assessment of the relationship between the distance from an established outbreak of SARS-CoV-2 infection with transmission-linked cases and mortality observed in other sites could provide useful information to identify the optimal radius of red zones. Methods We investigated the relationship between SARS-CoV-2 cases and the distance of each Italian province from the first outbreak of SARS-CoV-2 epidemic in Italy (the city of Lodi placed in the Lombardia region). In 38 provinces of Lombardia and neighboring regions, we performed a breakpoint analysis to identify the radius of the red zone around Lodi minimizing epidemic spread and mortality in neighboring cities. Results In all Italian provinces a non-linear relationship was found between SARS-CoV-2 cases and distance from Lodi. In an analysis including the provinces of Lombardia and neighboring regions, SARS-CoV-2 cases and mortality increased when the distance from Lodi reduced below 92 km and 140 km, respectively, and such relationships were amplified by ozone (O3) pollution. Conclusions The breakpoint analysis identifies the radius around the outbreak of Lodi minimizing the public health consequences of SARS-CoV-2 in neighboring cities. Such an approach can be useful to identify the red zones in future epidemics due to highly infective pathogens similar to SARS-CoV-2.

scholarly journals Age‐dependent increase in α‐tocopherol and phytosterols in maize leaves exposed to elevated ozone pollution

Plant Direct ◽  
2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Jessica M. Wedow ◽  
Charles H. Burroughs ◽  
Lorena Rios Acosta ◽  
Andrew D. B. Leakey ◽  
Elizabeth A. Ainsworth
Keyword(s):  
Ozone Pollution ◽  
Elevated Ozone ◽  
Maize Leaves ◽  
Age Dependent
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