{"title":"[鹤壁市臭氧和 VOCs 污染特征、来源及减排控制策略分析]。","authors":"Yu-Ting Liu, Zhan-Xia Du, Xin-Min Zhang, Sha Chen, Ying-Ying Liu, Lan-Tian Zhang","doi":"10.13227/j.hjkx.202307102","DOIUrl":null,"url":null,"abstract":"<p><p>In order to control the increasing ozone (O<sub>3</sub>) pollution in Hebi, Henan Province, clarifying the pollution characteristics of ozone and its precursors is vital. Therefore, we conducted a comprehensive analysis of O<sub>3</sub> pollution utilizing the OFP-PMF-EKMA method combined with online hourly resolution monitoring data of conventional pollutants and volatile organic compounds (VOCs) in the summer of 2022 (June-September). Ozone formation potential (OFP) was used to identify the key VOCs species, and the PMF model was used to identify the VOCs emission sources, whereas EKMA curves and scenario analysis were used to identify the main ozone control area in Hebi and to determine the reduction ratio of VOCs and NO<i><sub>x</sub></i> in a scientifically refined way. In 2022, Hebi had persistent O<sub>3</sub> pollution, with the highest concentration in June. Conditions of high temperature, low humidity, and low atmospheric pressure contributed to the O<sub>3</sub> accumulation. Aromatic and oxygenated volatile organic compounds (OVOCs) contributed significantly to the OFP and VOCs fraction, which were the dominant active substance and concentration dominant species. The results of the VOCs source analysis indicated that vehicle exhaust sources (25.3%) were the main source of atmospheric VOCs, followed by process sources (17.7%) and biomass combustion sources (17.6%). Thus, emission sources associated with the combustion of fossil fuels and industrial production emissions were the most urgent sources of atmospheric VOCs to be controlled in Hebi. The O<sub>3</sub> generation in Hebi occurred in the VOCs-sensitive zones, and the emission reduction results showed that a synergistic emission reduction of VOCs and nitrogen oxide (NO<i><sub>x</sub></i>) could effectively control O<sub>3</sub> pollution with a 75% reduction in VOCs and a 10% reduction in NO<i><sub>x</sub></i>.</p>","PeriodicalId":35937,"journal":{"name":"Huanjing Kexue/Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Analysis of Ozone and VOCs Pollution Characteristics, Sources, and Abatement Control Strategies in Hebi].\",\"authors\":\"Yu-Ting Liu, Zhan-Xia Du, Xin-Min Zhang, Sha Chen, Ying-Ying Liu, Lan-Tian Zhang\",\"doi\":\"10.13227/j.hjkx.202307102\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>In order to control the increasing ozone (O<sub>3</sub>) pollution in Hebi, Henan Province, clarifying the pollution characteristics of ozone and its precursors is vital. Therefore, we conducted a comprehensive analysis of O<sub>3</sub> pollution utilizing the OFP-PMF-EKMA method combined with online hourly resolution monitoring data of conventional pollutants and volatile organic compounds (VOCs) in the summer of 2022 (June-September). Ozone formation potential (OFP) was used to identify the key VOCs species, and the PMF model was used to identify the VOCs emission sources, whereas EKMA curves and scenario analysis were used to identify the main ozone control area in Hebi and to determine the reduction ratio of VOCs and NO<i><sub>x</sub></i> in a scientifically refined way. In 2022, Hebi had persistent O<sub>3</sub> pollution, with the highest concentration in June. Conditions of high temperature, low humidity, and low atmospheric pressure contributed to the O<sub>3</sub> accumulation. Aromatic and oxygenated volatile organic compounds (OVOCs) contributed significantly to the OFP and VOCs fraction, which were the dominant active substance and concentration dominant species. The results of the VOCs source analysis indicated that vehicle exhaust sources (25.3%) were the main source of atmospheric VOCs, followed by process sources (17.7%) and biomass combustion sources (17.6%). Thus, emission sources associated with the combustion of fossil fuels and industrial production emissions were the most urgent sources of atmospheric VOCs to be controlled in Hebi. The O<sub>3</sub> generation in Hebi occurred in the VOCs-sensitive zones, and the emission reduction results showed that a synergistic emission reduction of VOCs and nitrogen oxide (NO<i><sub>x</sub></i>) could effectively control O<sub>3</sub> pollution with a 75% reduction in VOCs and a 10% reduction in NO<i><sub>x</sub></i>.</p>\",\"PeriodicalId\":35937,\"journal\":{\"name\":\"Huanjing Kexue/Environmental Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Huanjing Kexue/Environmental Science\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.13227/j.hjkx.202307102\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Huanjing Kexue/Environmental Science","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.13227/j.hjkx.202307102","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Environmental Science","Score":null,"Total":0}
[Analysis of Ozone and VOCs Pollution Characteristics, Sources, and Abatement Control Strategies in Hebi].
In order to control the increasing ozone (O3) pollution in Hebi, Henan Province, clarifying the pollution characteristics of ozone and its precursors is vital. Therefore, we conducted a comprehensive analysis of O3 pollution utilizing the OFP-PMF-EKMA method combined with online hourly resolution monitoring data of conventional pollutants and volatile organic compounds (VOCs) in the summer of 2022 (June-September). Ozone formation potential (OFP) was used to identify the key VOCs species, and the PMF model was used to identify the VOCs emission sources, whereas EKMA curves and scenario analysis were used to identify the main ozone control area in Hebi and to determine the reduction ratio of VOCs and NOx in a scientifically refined way. In 2022, Hebi had persistent O3 pollution, with the highest concentration in June. Conditions of high temperature, low humidity, and low atmospheric pressure contributed to the O3 accumulation. Aromatic and oxygenated volatile organic compounds (OVOCs) contributed significantly to the OFP and VOCs fraction, which were the dominant active substance and concentration dominant species. The results of the VOCs source analysis indicated that vehicle exhaust sources (25.3%) were the main source of atmospheric VOCs, followed by process sources (17.7%) and biomass combustion sources (17.6%). Thus, emission sources associated with the combustion of fossil fuels and industrial production emissions were the most urgent sources of atmospheric VOCs to be controlled in Hebi. The O3 generation in Hebi occurred in the VOCs-sensitive zones, and the emission reduction results showed that a synergistic emission reduction of VOCs and nitrogen oxide (NOx) could effectively control O3 pollution with a 75% reduction in VOCs and a 10% reduction in NOx.