Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter
By analyzing the mass concentrations and compositions of atmospheric PM<sub>2.5</sub> in Shaoxing from December 2019 to February 2020, the characteristics of carbon-containing components, water-soluble ions and metal elements were obtained. NO<sub>3</sub><sup>−</sup&...
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MDPI AG
2023-08-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/8/1256 |
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| author | Wenjuan Li Jian Wu Yangyi Zhou Qiongzhen Wang Fuwei Yu Rupei Wang |
| author_facet | Wenjuan Li Jian Wu Yangyi Zhou Qiongzhen Wang Fuwei Yu Rupei Wang |
| author_sort | Wenjuan Li |
| collection | DOAJ |
| description | By analyzing the mass concentrations and compositions of atmospheric PM<sub>2.5</sub> in Shaoxing from December 2019 to February 2020, the characteristics of carbon-containing components, water-soluble ions and metal elements were obtained. NO<sub>3</sub><sup>−</sup>, OC, SO<sub>4</sub><sup>2−</sup> and NH<sub>4</sub><sup>+</sup> were the main components of PM<sub>2.5</sub> in winter. The OC/EC ratio was 3.27, which proved the existence of SOC. The proportion of SOC in OC was 47.3%, which showed that secondary sources made a significant contribution. The values of OC/EC and NO<sub>3</sub><sup>−</sup>/SO<sub>4</sub><sup>2−</sup> indicated that vehicle exhaust emissions also made a significant contribution to PM<sub>2.5</sub>. Trace elements of Na, Ca, K and Cd had higher enrichment factor values and were enriched due to human activities. Finally, PM<sub>2.5</sub> sources analysis was performed by the positive matrix factorization model. The results showed that secondary inorganic salts (49.3%), motor vehicles and industrial sources (21.3%) and dust sources (17.0%) were the important sources of PM<sub>2.5</sub> pollution. |
| first_indexed | 2024-03-11T00:08:19Z |
| format | Article |
| id | doaj.art-4d079a004f604bb882e0db48b0144871 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T00:08:19Z |
| publishDate | 2023-08-01 |
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| series | Atmosphere |
| spelling | doaj.art-4d079a004f604bb882e0db48b01448712023-11-19T00:12:46ZengMDPI AGAtmosphere2073-44332023-08-01148125610.3390/atmos14081256Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in WinterWenjuan Li0Jian Wu1Yangyi Zhou2Qiongzhen Wang3Fuwei Yu4Rupei Wang5College of Civil Engineering and Architecture, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaEcological Environment Low Carbon Development Center of Zhejiang Province, Hangzhou 310012, ChinaEco-Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou 310007, ChinaEco-Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou 310007, ChinaEco-Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou 310007, ChinaZheneng Jinjiang Environment Holding Co., Ltd., Hangzhou 310011, ChinaBy analyzing the mass concentrations and compositions of atmospheric PM<sub>2.5</sub> in Shaoxing from December 2019 to February 2020, the characteristics of carbon-containing components, water-soluble ions and metal elements were obtained. NO<sub>3</sub><sup>−</sup>, OC, SO<sub>4</sub><sup>2−</sup> and NH<sub>4</sub><sup>+</sup> were the main components of PM<sub>2.5</sub> in winter. The OC/EC ratio was 3.27, which proved the existence of SOC. The proportion of SOC in OC was 47.3%, which showed that secondary sources made a significant contribution. The values of OC/EC and NO<sub>3</sub><sup>−</sup>/SO<sub>4</sub><sup>2−</sup> indicated that vehicle exhaust emissions also made a significant contribution to PM<sub>2.5</sub>. Trace elements of Na, Ca, K and Cd had higher enrichment factor values and were enriched due to human activities. Finally, PM<sub>2.5</sub> sources analysis was performed by the positive matrix factorization model. The results showed that secondary inorganic salts (49.3%), motor vehicles and industrial sources (21.3%) and dust sources (17.0%) were the important sources of PM<sub>2.5</sub> pollution.https://www.mdpi.com/2073-4433/14/8/1256PM<sub>2.5</sub>metal elementswater-soluble ionscarbonaceous speciessources analysis |
| spellingShingle | Wenjuan Li Jian Wu Yangyi Zhou Qiongzhen Wang Fuwei Yu Rupei Wang Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter Atmosphere PM<sub>2.5</sub> metal elements water-soluble ions carbonaceous species sources analysis |
| title | Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter |
| title_full | Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter |
| title_fullStr | Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter |
| title_full_unstemmed | Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter |
| title_short | Chemical Characteristics and Sources Analysis of PM<sub>2.5</sub> in Shaoxing in Winter |
| title_sort | chemical characteristics and sources analysis of pm sub 2 5 sub in shaoxing in winter |
| topic | PM<sub>2.5</sub> metal elements water-soluble ions carbonaceous species sources analysis |
| url | https://www.mdpi.com/2073-4433/14/8/1256 |
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