Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China
Abstract Weihai, on the east coast of China, is the only city in Shandong Province that the air quality has reached the Chinese National Ambient Air Quality Class II Standard. However, heavy pollution events still occurred in winter and spring. In this study, the Integrated Source Apportionment Meth...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2021-01-01
|
| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.200266 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823862881550073856 |
|---|---|
| author | Wentao Ning Zhiwen Xing Min Wei Mingyan Li Meigen Zhang Houfeng Liu |
| author_facet | Wentao Ning Zhiwen Xing Min Wei Mingyan Li Meigen Zhang Houfeng Liu |
| author_sort | Wentao Ning |
| collection | DOAJ |
| description | Abstract Weihai, on the east coast of China, is the only city in Shandong Province that the air quality has reached the Chinese National Ambient Air Quality Class II Standard. However, heavy pollution events still occurred in winter and spring. In this study, the Integrated Source Apportionment Method (ISAM), a source analysis tool coupled with the Regional Atmospheric Modeling System and the Community Multiscale Air Quality modeling system (RAMS–CMAQ), was used to quantify the contribution of regional transport to PM2.5 and its main components in Weihai during February to March in 2018. The results showed that regional transport dominated PM2.5 pollution in Weihai, and the contributions of transport outside Weihai in February and March were 55.6–65.5% and 61.3–68.6%, respectively. Different components in PM2.5 showed the proportion of pollutants varies enormously. Secondary particles were mainly transported via long distances. The proportion of long-range transportation of nitrate had the highest value, and the contribution of regional transportation outside Weihai was 87.5–92.5% and 88.2–91.7%, followed by sulfate, which was 67.9–80.6% and 80.8–86.2%, and the proportion of ammonium salt is the lowest, contributed for 38.8–70.8% and 41.1–71.9% in February and March, respectively. Black carbon (BC), organic carbon (OC), and ions (ions here include chloride, sodium, magnesium, potassium, calcium, iron, aluminium, silicon, titanium, manganese, and other major nonspecific fine particles) were mainly influenced by short-range transportation and local emissions. The contributions of BC outside Weihai were 26.0–49.8% and 34.2–55.2%, the values for OC were 33.5–52.9% and 41.0–53.0%, those for ions were 37.8–49.9% and 44.1–54.4%, respectively. The trajectories indicate that PM2.5 pollution in Weihai is significantly affected by transport from Shandong Province, North China, Northeast China and other regions Thus, the improvement in air quality in Weihai requires strengthening interregional joint pollution prevention. |
| format | Article |
| id | doaj-art-3dc491f789834addbbb4521c59d77791 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-3dc491f789834addbbb4521c59d777912025-02-09T12:19:41ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-01-0121611710.4209/aaqr.200266Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern ChinaWentao Ning0Zhiwen Xing1Min Wei2Mingyan Li3Meigen Zhang4Houfeng Liu5College of Geography and Environment, Shandong Normal UniversityCollege of Geography and Environment, Shandong Normal UniversityCollege of Geography and Environment, Shandong Normal UniversityCollege of Geography and Environment, Shandong Normal UniversityState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of SciencesCollege of Geography and Environment, Shandong Normal UniversityAbstract Weihai, on the east coast of China, is the only city in Shandong Province that the air quality has reached the Chinese National Ambient Air Quality Class II Standard. However, heavy pollution events still occurred in winter and spring. In this study, the Integrated Source Apportionment Method (ISAM), a source analysis tool coupled with the Regional Atmospheric Modeling System and the Community Multiscale Air Quality modeling system (RAMS–CMAQ), was used to quantify the contribution of regional transport to PM2.5 and its main components in Weihai during February to March in 2018. The results showed that regional transport dominated PM2.5 pollution in Weihai, and the contributions of transport outside Weihai in February and March were 55.6–65.5% and 61.3–68.6%, respectively. Different components in PM2.5 showed the proportion of pollutants varies enormously. Secondary particles were mainly transported via long distances. The proportion of long-range transportation of nitrate had the highest value, and the contribution of regional transportation outside Weihai was 87.5–92.5% and 88.2–91.7%, followed by sulfate, which was 67.9–80.6% and 80.8–86.2%, and the proportion of ammonium salt is the lowest, contributed for 38.8–70.8% and 41.1–71.9% in February and March, respectively. Black carbon (BC), organic carbon (OC), and ions (ions here include chloride, sodium, magnesium, potassium, calcium, iron, aluminium, silicon, titanium, manganese, and other major nonspecific fine particles) were mainly influenced by short-range transportation and local emissions. The contributions of BC outside Weihai were 26.0–49.8% and 34.2–55.2%, the values for OC were 33.5–52.9% and 41.0–53.0%, those for ions were 37.8–49.9% and 44.1–54.4%, respectively. The trajectories indicate that PM2.5 pollution in Weihai is significantly affected by transport from Shandong Province, North China, Northeast China and other regions Thus, the improvement in air quality in Weihai requires strengthening interregional joint pollution prevention.https://doi.org/10.4209/aaqr.200266PM2.5CMAQ-ISAMRegional transportCoastal city |
| spellingShingle | Wentao Ning Zhiwen Xing Min Wei Mingyan Li Meigen Zhang Houfeng Liu Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China Aerosol and Air Quality Research PM2.5 CMAQ-ISAM Regional transport Coastal city |
| title | Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China |
| title_full | Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China |
| title_fullStr | Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China |
| title_full_unstemmed | Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China |
| title_short | Study on the Influence of Regional Transportation on PM2.5 Based on the RAMS-CMAQ Model in Weihai, a Typical Coastal City of Northern China |
| title_sort | study on the influence of regional transportation on pm2 5 based on the rams cmaq model in weihai a typical coastal city of northern china |
| topic | PM2.5 CMAQ-ISAM Regional transport Coastal city |
| url | https://doi.org/10.4209/aaqr.200266 |
| work_keys_str_mv | AT wentaoning studyontheinfluenceofregionaltransportationonpm25basedontheramscmaqmodelinweihaiatypicalcoastalcityofnorthernchina AT zhiwenxing studyontheinfluenceofregionaltransportationonpm25basedontheramscmaqmodelinweihaiatypicalcoastalcityofnorthernchina AT minwei studyontheinfluenceofregionaltransportationonpm25basedontheramscmaqmodelinweihaiatypicalcoastalcityofnorthernchina AT mingyanli studyontheinfluenceofregionaltransportationonpm25basedontheramscmaqmodelinweihaiatypicalcoastalcityofnorthernchina AT meigenzhang studyontheinfluenceofregionaltransportationonpm25basedontheramscmaqmodelinweihaiatypicalcoastalcityofnorthernchina AT houfengliu studyontheinfluenceofregionaltransportationonpm25basedontheramscmaqmodelinweihaiatypicalcoastalcityofnorthernchina |