Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China
As a carcinogenic pollutant, hexavalent chromium (Cr(VI)) in the ambient air has serious influences on public health. Due to its instability and difficulty in chemical analysis, few studies have been conducted on the regional concentration level of environmental Cr(VI), especially in China. The poll...
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MDPI AG
2023-01-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/2/209 |
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| author | Luxi Wang Jinghua Guo Wenjie Zhang Bin Chen Han Wang Hui Li |
| author_facet | Luxi Wang Jinghua Guo Wenjie Zhang Bin Chen Han Wang Hui Li |
| author_sort | Luxi Wang |
| collection | DOAJ |
| description | As a carcinogenic pollutant, hexavalent chromium (Cr(VI)) in the ambient air has serious influences on public health. Due to its instability and difficulty in chemical analysis, few studies have been conducted on the regional concentration level of environmental Cr(VI), especially in China. The pollution levels of Cr(VI) in ambient PM<sub>2.5</sub> were determined in two sampling sites of Beijing and Qingdao from September to December 2020. The concentrations of Cr(VI) were determined using Ion Chromatography-inductively coupled plasma mass spectrometry(IC-ICP-MS), and the Cr concentrations were simultaneously analyzed by Inductively Coupled Plasma-atomic emission spectrometry(ICP-AES). The main results are as follows: (1) Based on the analysis of samples collected at the sampling sites of Beijing and Qingdao, the concentrations of Cr(VI) in PM<sub>2.5</sub> were (0.140 ± 0.065) ng/m<sup>3</sup> and (0.091 ± 0.073) ng/m<sup>3</sup>, respectively; (2) During the sampling period, the mean ratio of Cr(VI) to Cr was (0.0623 ± 0.0969). The ratio of Cr(VI)/Cr in Beijing and Qingdao were 0.076 ± 0.104 and 0.041 ± 0.039, respectively. In conclusion, compared with other countries, the concentration of Cr(VI) at the sampling sites of Beijing and Qingdao showed lower values. The average concentration of Cr(VI) estimated by the ratio of this research in China is lower than that in South Korea and similar to those in Canada and Australia. |
| first_indexed | 2024-03-11T09:10:53Z |
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| id | doaj.art-44154daa54a94395af4f45776c168292 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T09:10:53Z |
| publishDate | 2023-01-01 |
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| series | Atmosphere |
| spelling | doaj.art-44154daa54a94395af4f45776c1682922023-11-16T19:01:35ZengMDPI AGAtmosphere2073-44332023-01-0114220910.3390/atmos14020209Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of ChinaLuxi Wang0Jinghua Guo1Wenjie Zhang2Bin Chen3Han Wang4Hui Li5College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaAnalytical and Testing Center, Beijing Normal University, Beijing 100875, ChinaState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaInstitute of Carbon Neutrality, Qilu Zhongke, Jinan 250100, 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, ChinaAs a carcinogenic pollutant, hexavalent chromium (Cr(VI)) in the ambient air has serious influences on public health. Due to its instability and difficulty in chemical analysis, few studies have been conducted on the regional concentration level of environmental Cr(VI), especially in China. The pollution levels of Cr(VI) in ambient PM<sub>2.5</sub> were determined in two sampling sites of Beijing and Qingdao from September to December 2020. The concentrations of Cr(VI) were determined using Ion Chromatography-inductively coupled plasma mass spectrometry(IC-ICP-MS), and the Cr concentrations were simultaneously analyzed by Inductively Coupled Plasma-atomic emission spectrometry(ICP-AES). The main results are as follows: (1) Based on the analysis of samples collected at the sampling sites of Beijing and Qingdao, the concentrations of Cr(VI) in PM<sub>2.5</sub> were (0.140 ± 0.065) ng/m<sup>3</sup> and (0.091 ± 0.073) ng/m<sup>3</sup>, respectively; (2) During the sampling period, the mean ratio of Cr(VI) to Cr was (0.0623 ± 0.0969). The ratio of Cr(VI)/Cr in Beijing and Qingdao were 0.076 ± 0.104 and 0.041 ± 0.039, respectively. In conclusion, compared with other countries, the concentration of Cr(VI) at the sampling sites of Beijing and Qingdao showed lower values. The average concentration of Cr(VI) estimated by the ratio of this research in China is lower than that in South Korea and similar to those in Canada and Australia.https://www.mdpi.com/2073-4433/14/2/209hexavalent chromiumPM<sub>2.5</sub>IC-ICP-MSpollution characteristics |
| spellingShingle | Luxi Wang Jinghua Guo Wenjie Zhang Bin Chen Han Wang Hui Li Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China Atmosphere hexavalent chromium PM<sub>2.5</sub> IC-ICP-MS pollution characteristics |
| title | Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China |
| title_full | Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China |
| title_fullStr | Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China |
| title_full_unstemmed | Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China |
| title_short | Pollution Levels for Airborne Hexavalent Chromium of PM<sub>2.5</sub> in Typical Cities of China |
| title_sort | pollution levels for airborne hexavalent chromium of pm sub 2 5 sub in typical cities of china |
| topic | hexavalent chromium PM<sub>2.5</sub> IC-ICP-MS pollution characteristics |
| url | https://www.mdpi.com/2073-4433/14/2/209 |
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