Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City
Ground-level ozone is a secondary pollutant produced by photochemical reactions and it adversely affects plant and human health. Taiyuan City, a typical city on the loess plateau, is suffering from severe ozone pollution. We utilized the data from eight national environmental monitoring sites of Tai...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-05-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/11/6/555 |
| _version_ | 1797566862703198208 |
|---|---|
| author | Bin Li Zhuangzhi Zhou Zhigang Xue Peng Wei Yanjun Ren Liyuan Cao Xinyu Feng Qingchen Yao Jinghua Ma Peng Xu Xuan Chen |
| author_facet | Bin Li Zhuangzhi Zhou Zhigang Xue Peng Wei Yanjun Ren Liyuan Cao Xinyu Feng Qingchen Yao Jinghua Ma Peng Xu Xuan Chen |
| author_sort | Bin Li |
| collection | DOAJ |
| description | Ground-level ozone is a secondary pollutant produced by photochemical reactions and it adversely affects plant and human health. Taiyuan City, a typical city on the loess plateau, is suffering from severe ozone pollution. We utilized the data from eight national environmental monitoring sites of Taiyuan, including concentrations of O<sub>3</sub> and nitric oxide, and meteorological factors, such as air temperature and wind, to study the pollution characteristics and sources of ozone (O<sub>3</sub>) in Taiyuan in 2018. Results show that during 2018, the maximum value and 90th percentile of the maximum 8-h running average of O<sub>3</sub> concentration were 257 μg/m<sup>3</sup> and 192 μg/m<sup>3</sup>, respectively. There were 72 days where the O<sub>3</sub> concentration exceeded the standard in 2018, which were mainly during April to August. The O<sub>3</sub> concentration increased from March, reached a high level in April through August, and decreased significantly from September. The O<sub>3</sub> concentrations displayed a typical “single peak” diurnal variation, which was high during the day with peak at around 13:00–15:00 and low at night. From April to August, the O<sub>3</sub> concentrations at Jinyuan was the highest, followed by Xiaodian and Taoyuan, and the O<sub>3</sub> concentrations at Shanglan and Nanzhai were the lowest. When the O<sub>3</sub> concentration exceeded the standard value, Jinyuan contributed the most to the O<sub>3</sub> pollution of Taiyuan, followed by Taoyuan and Xiaodian. High temperature and pressure, south and southwest winds can lead to an increase in O<sub>3</sub> concentration. The O<sub>3</sub> pollution in the Taiyuan urban area is caused by local generation, and the transportation of polluted air masses containing oxides of nitrogen (NOx) and volatile organic compounds (VOCs) emitted by industries, such as the coking and steel plants in counties of Jinzhong City in southern Taiyuan, and Qingxu County, and some counties in Lyuliang City to the southwest. In addition, the mountain winds and low nitric oxide concentration are the main reasons for the increase of O<sub>3</sub> concentration, often observed in Shanglan at night. |
| first_indexed | 2024-03-10T19:33:25Z |
| format | Article |
| id | doaj.art-1d5651ae43bc4e9bbebfdf3917d48816 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T19:33:25Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-1d5651ae43bc4e9bbebfdf3917d488162023-11-20T01:56:09ZengMDPI AGAtmosphere2073-44332020-05-0111655510.3390/atmos11060555Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau CityBin Li0Zhuangzhi Zhou1Zhigang Xue2Peng Wei3Yanjun Ren4Liyuan Cao5Xinyu Feng6Qingchen Yao7Jinghua Ma8Peng Xu9Xuan Chen10School of Environment and Safety Engineering, North University of China, Taiyuan 030051, ChinaSchool of Environment and Safety Engineering, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaTaiyuan Eco-Environment Monitoring Center of Shanxi Province, Taiyuan 030051, ChinaTaiyuan Eco-Environment Monitoring Center of Shanxi Province, Taiyuan 030051, ChinaTaiyuan Eco-Environment Monitoring Center of Shanxi Province, Taiyuan 030051, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaGround-level ozone is a secondary pollutant produced by photochemical reactions and it adversely affects plant and human health. Taiyuan City, a typical city on the loess plateau, is suffering from severe ozone pollution. We utilized the data from eight national environmental monitoring sites of Taiyuan, including concentrations of O<sub>3</sub> and nitric oxide, and meteorological factors, such as air temperature and wind, to study the pollution characteristics and sources of ozone (O<sub>3</sub>) in Taiyuan in 2018. Results show that during 2018, the maximum value and 90th percentile of the maximum 8-h running average of O<sub>3</sub> concentration were 257 μg/m<sup>3</sup> and 192 μg/m<sup>3</sup>, respectively. There were 72 days where the O<sub>3</sub> concentration exceeded the standard in 2018, which were mainly during April to August. The O<sub>3</sub> concentration increased from March, reached a high level in April through August, and decreased significantly from September. The O<sub>3</sub> concentrations displayed a typical “single peak” diurnal variation, which was high during the day with peak at around 13:00–15:00 and low at night. From April to August, the O<sub>3</sub> concentrations at Jinyuan was the highest, followed by Xiaodian and Taoyuan, and the O<sub>3</sub> concentrations at Shanglan and Nanzhai were the lowest. When the O<sub>3</sub> concentration exceeded the standard value, Jinyuan contributed the most to the O<sub>3</sub> pollution of Taiyuan, followed by Taoyuan and Xiaodian. High temperature and pressure, south and southwest winds can lead to an increase in O<sub>3</sub> concentration. The O<sub>3</sub> pollution in the Taiyuan urban area is caused by local generation, and the transportation of polluted air masses containing oxides of nitrogen (NOx) and volatile organic compounds (VOCs) emitted by industries, such as the coking and steel plants in counties of Jinzhong City in southern Taiyuan, and Qingxu County, and some counties in Lyuliang City to the southwest. In addition, the mountain winds and low nitric oxide concentration are the main reasons for the increase of O<sub>3</sub> concentration, often observed in Shanglan at night.https://www.mdpi.com/2073-4433/11/6/555ozone concentrationtemporal and spatial variationpollution causemountain windcluster analysis of backward trajectorieslocal generation |
| spellingShingle | Bin Li Zhuangzhi Zhou Zhigang Xue Peng Wei Yanjun Ren Liyuan Cao Xinyu Feng Qingchen Yao Jinghua Ma Peng Xu Xuan Chen Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City Atmosphere ozone concentration temporal and spatial variation pollution cause mountain wind cluster analysis of backward trajectories local generation |
| title | Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City |
| title_full | Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City |
| title_fullStr | Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City |
| title_full_unstemmed | Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City |
| title_short | Study on the Pollution Characteristics and Sources of Ozone in Typical Loess Plateau City |
| title_sort | study on the pollution characteristics and sources of ozone in typical loess plateau city |
| topic | ozone concentration temporal and spatial variation pollution cause mountain wind cluster analysis of backward trajectories local generation |
| url | https://www.mdpi.com/2073-4433/11/6/555 |
| work_keys_str_mv | AT binli studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT zhuangzhizhou studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT zhigangxue studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT pengwei studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT yanjunren studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT liyuancao studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT xinyufeng studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT qingchenyao studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT jinghuama studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT pengxu studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity AT xuanchen studyonthepollutioncharacteristicsandsourcesofozoneintypicalloessplateaucity |