Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area.
Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area.
复制标题
挥发性有机化合物对二次污染形成和健康风险的意义在一个工业城市地区的夏季运动期间观察到。
DOI：
10.3390/toxics12010034
复制
发表时间：
2024-01-01
期刊：
影响因子：
4.6
通讯作者：
Li H
中科院分区：
文献类型：
--
作者：
Cao L;Men Q;Zhang Z;Yue H;Cui S;Huang X;Zhang Y;Wang J;Chen M;Li H
挥发性有机化合物（VOCs）的化学复杂性和毒性主要是通过密集的人为排放在郊区遇到的。在此，通过2020年6月1日至30日在中国国家石化工业园区附近的南京郊区进行的连续现场测量，研究了污染特征、对二次污染形成的影响以及健康风险。总挥发性有机物浓度平均为34.47 ± 16.08 ppb，主要由烷烃（41.8%）和卤代烃（29.4%）组成。芳烃类化合物（17.4%）对臭氧生成潜势（OFP）和二次有机气溶胶生成潜势（SOAFP）的贡献率分别为59.6%和58.3%。根据源解析结果，约63.5%的VOCs来自石化行业和溶剂使用，其次是22.3%的生物排放和14.2%的车辆排放。在观察到的46种挥发性有机化合物中，六氯丁二烯、二溴乙烷、丁二烯、四氯乙烷和氯乙烯的致癌风险高达98.8%，其中很大一部分是由于臭氧污染事件和夜间的高水平排放。因此，减少石化行业挥发性有机化合物的排放是减少大城市二次污染和潜在健康风险的有效途径。
The chemical complexity and toxicity of volatile organic compounds (VOCs) are primarily encountered through intensive anthropogenic emissions in suburban areas. Here, pollution characteristics, impacts on secondary pollution formation, and health risks were investigated through continuous in-field measurements from 1–30 June 2020 in suburban Nanjing, adjacent to national petrochemical industrial parks in China. On average, the total VOCs concentration was 34.47 ± 16.08 ppb, which was comprised mostly by alkanes (41.8%) and halogenated hydrocarbons (29.4%). In contrast, aromatics (17.4%) dominated the ozone formation potential (OFP) and secondary organic aerosol formation potential (SOAFP) with 59.6% and 58.3%, respectively. Approximately 63.5% of VOCs were emitted from the petrochemical industry and from solvent usage based on source apportionment results, followed by biogenic emissions of 22.3% and vehicle emissions of 14.2%. Of the observed 46 VOC species, hexachlorobutadiene, dibromoethane, butadiene, tetrachloroethane, and vinyl chloride contributed as high as 98.8% of total carcinogenic risk, a large fraction of which was ascribed to the high-level emissions during ozone pollution episodes and nighttime. Therefore, the mitigation of VOC emissions from petrochemical industries would be an effective way to reduce secondary pollution and potential health risks in conurbation areas.
登录
查看更多内容
影响因子：
5
作者：
Cai, Changjie;Geng, Fuhai;An, Junlin
通讯作者：
An, Junlin
影响因子：
4
作者：
Cheng, Jen-Hsuan;Hsieh, Ming-Jui;Chen, Kang-Shin
通讯作者：
Chen, Kang-Shin
华北地区五种杨树无性系基于浓度和通量的臭氧剂量响应关系
影响因子：
8.9
作者：
Hu, Enzhu;Gao, Feng;Feng, Zhaozhong
通讯作者：
Feng, Zhaozhong
影响因子：
9.8
作者：
Cetin, E;Odabasi, M;Seyfioglu, R
通讯作者：
Seyfioglu, R
影响因子：
5.8
作者：
Burkey, Kent O.;Carter, Thomas E., Jr.
通讯作者：
Carter, Thomas E., Jr.