Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification
Driven by a rapid increase of energy consumption and emerging pollution control policies, air pollutant emissions have changed dramatically in China during 2005–2010. This study developed a multi-pollutant emission inventory, and used the community multi-scale air quality (CMAQ) modeling system to e...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2013-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/8/2/024031 |
| _version_ | 1797748339058409472 |
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| author | Bin Zhao Shuxiao Wang Xinyi Dong Jiandong Wang Lei Duan Xiao Fu Jiming Hao Joshua Fu |
| author_facet | Bin Zhao Shuxiao Wang Xinyi Dong Jiandong Wang Lei Duan Xiao Fu Jiming Hao Joshua Fu |
| author_sort | Bin Zhao |
| collection | DOAJ |
| description | Driven by a rapid increase of energy consumption and emerging pollution control policies, air pollutant emissions have changed dramatically in China during 2005–2010. This study developed a multi-pollutant emission inventory, and used the community multi-scale air quality (CMAQ) modeling system to evaluate the impact of the emission changes on particulate matter pollution and soil acidification. During 2005–2010, the emissions of SO _2 , PM _10 and PM _2.5 decreased by 14.9%, 15.1% and 11.7%, respectively. In contrast, the emissions of NO _X , NMVOC and NH _3 increased by 33.8%, 21.0% and 10.4%, respectively. The emission trends differed notably in different regions. Driven by emission changes, PM _2.5 concentrations decreased by 2–17 μg m ^−3 in most of the North China Plain, the Yangtze River Delta and the Pearl River Delta, while increasing by 4.5–16 μg m ^−3 in most of the Sichuan Basin and Eastern Hubei. The changes of PM _2.5 emissions led to the decline of primary PM _2.5 concentrations in most of Eastern China. As an effect solely of emission changes, nitrate concentrations increased across most of China; sulfate concentrations decreased in most of Eastern China, with the largest reduction in the North China Plain, while they increased in the Sichuan Basin and parts of the Pearl River Delta and Eastern Hubei. The concentrations of secondary inorganic aerosols (SIA) and the extinction coefficient increased in most of China, especially in the Sichuan Basin and Eastern Hubei, implying that the NO _X and NH _3 emissions should be reduced simultaneously in China. Combining the acidification effects of S and N, the exceedance of critical loads decreased across the country, but increased in the Sichuan Basin, the Pearl River Delta and Eastern Hubei, where the soil acidification was the most serious. Different control policies need to be implemented in different regions. |
| first_indexed | 2024-03-12T16:03:26Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T16:03:26Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-3cd0bfef25cb4452a315669ef228e3b82023-08-09T14:26:58ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018202403110.1088/1748-9326/8/2/024031Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidificationBin Zhao0Shuxiao Wang1Xinyi Dong2Jiandong Wang3Lei Duan4Xiao Fu5Jiming Hao6Joshua Fu7School of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University , Beijing 100084, People’s Republic of ChinaSchool of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University , Beijing 100084, People’s Republic of China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex , Beijing 100084, People’s Republic of ChinaDepartment of Civil and Environmental Engineering, University of Tennessee , TN 37996, USASchool of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University , Beijing 100084, People’s Republic of ChinaSchool of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University , Beijing 100084, People’s Republic of ChinaSchool of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University , Beijing 100084, People’s Republic of ChinaSchool of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University , Beijing 100084, People’s Republic of China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex , Beijing 100084, People’s Republic of ChinaDepartment of Civil and Environmental Engineering, University of Tennessee , TN 37996, USADriven by a rapid increase of energy consumption and emerging pollution control policies, air pollutant emissions have changed dramatically in China during 2005–2010. This study developed a multi-pollutant emission inventory, and used the community multi-scale air quality (CMAQ) modeling system to evaluate the impact of the emission changes on particulate matter pollution and soil acidification. During 2005–2010, the emissions of SO _2 , PM _10 and PM _2.5 decreased by 14.9%, 15.1% and 11.7%, respectively. In contrast, the emissions of NO _X , NMVOC and NH _3 increased by 33.8%, 21.0% and 10.4%, respectively. The emission trends differed notably in different regions. Driven by emission changes, PM _2.5 concentrations decreased by 2–17 μg m ^−3 in most of the North China Plain, the Yangtze River Delta and the Pearl River Delta, while increasing by 4.5–16 μg m ^−3 in most of the Sichuan Basin and Eastern Hubei. The changes of PM _2.5 emissions led to the decline of primary PM _2.5 concentrations in most of Eastern China. As an effect solely of emission changes, nitrate concentrations increased across most of China; sulfate concentrations decreased in most of Eastern China, with the largest reduction in the North China Plain, while they increased in the Sichuan Basin and parts of the Pearl River Delta and Eastern Hubei. The concentrations of secondary inorganic aerosols (SIA) and the extinction coefficient increased in most of China, especially in the Sichuan Basin and Eastern Hubei, implying that the NO _X and NH _3 emissions should be reduced simultaneously in China. Combining the acidification effects of S and N, the exceedance of critical loads decreased across the country, but increased in the Sichuan Basin, the Pearl River Delta and Eastern Hubei, where the soil acidification was the most serious. Different control policies need to be implemented in different regions.https://doi.org/10.1088/1748-9326/8/2/024031emission inventoryparticulate matter pollutionsoil acidificationCMAQ |
| spellingShingle | Bin Zhao Shuxiao Wang Xinyi Dong Jiandong Wang Lei Duan Xiao Fu Jiming Hao Joshua Fu Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification Environmental Research Letters emission inventory particulate matter pollution soil acidification CMAQ |
| title | Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification |
| title_full | Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification |
| title_fullStr | Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification |
| title_full_unstemmed | Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification |
| title_short | Environmental effects of the recent emission changes in China: implications for particulate matter pollution and soil acidification |
| title_sort | environmental effects of the recent emission changes in china implications for particulate matter pollution and soil acidification |
| topic | emission inventory particulate matter pollution soil acidification CMAQ |
| url | https://doi.org/10.1088/1748-9326/8/2/024031 |
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