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| Numerical Modeling of Effects of Climate Change on Air Quality in the Yangtze River Delta Region |
| Received:January 30, 2019 Revised:June 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.06.018 |
| KeyWord:ozone climate change the Yangtze River Delta region WRF-Chem |
| Author | Institution |
| GAO Da |
1. School of Atmospheric Sciences, Nanjing University, Nanjing, , China |
| XIE Min |
1. School of Atmospheric Sciences, Nanjing University, Nanjing, , China |
| CHEN Xing |
1. School of Atmospheric Sciences, Nanjing University, Nanjing, , China |
| WANG Ti-jian |
1. School of Atmospheric Sciences, Nanjing University, Nanjing, , China |
| LIU Qian |
2. Jiangsu Provincial Academy of Environmental Science, Nanjing , China |
| ZHAN Chen-chao |
1. School of Atmospheric Sciences, Nanjing University, Nanjing, , China |
| REN Jun-yu |
1. School of Atmospheric Sciences, Nanjing University, Nanjing, , China |
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| Abstract: |
| Objective To study effect of climate change on concentration of pollutants and air quality of environment. Methods The meteorological elements and air quality of the Yangtze River Delta region (YRD) in January, July of 2014 (present) and 2050 (future) were simulated with WRF-Chem to research influences of climate change on the ozone concentration of the region. Results By comparing the modeling results for July 2014 with those for July 2050, we found that the concentration of ozone in YRD had little change, about -0.09 ppb. It increased in the north and decreased in the south. The maximum increment of ozone concentration occurred in the north of YRD, with the value of 15.0 ppb. Compared with the data for January in 2014, the ozone concentration in the entire YRD reduced 7.9% in January 2050. The maximum decrease of ozone concentration occurred in the east of Shanghai, with the value of -25.1%. Conclusion For the summer, the main reasons causing the increase of ozone concentration in YRD include the increase of solar radiation, NOx concentration and PBLH and the transportation of strengthen south wind. However, the reduction of O3 concentration in the south of YRD is due to the reduction of solar radiation and the increase of wind speed. For the winter, the ozone concentration reduces a lot in the east of Shanghai and Nantong, which is related with the reduction of temperature and solar radiation and the increase of NOx and VOC concentration. However, ozone concentration increases in the south. This phenomenon is related to the increase of solar radiation and the regional transportation. The effect of climate change should be considered when making the pollution control countermeasure. |
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