Analysis and Testing Center, Department of Chemistry, Capital Normal University, Beijing 100048, China.
College of Resources Environment and Tourism, Capital Normal University, Beijing 100048, China.
J Environ Sci (China). 2025 Mar;149:113-125. doi: 10.1016/j.jes.2023.10.023. Epub 2023 Oct 31.
To study the volatile organic compounds (VOCs) emission characteristics of industrial enterprises in China, 6 typical chemical industries in Yuncheng City were selected as research objects, including the modern coal chemical industry (MCC), pharmaceutical industry (PM), pesticide industry (PE), coking industry (CO) and organic chemical industry (OC). The chemical composition of 91 VOCs was quantitatively analyzed. The results showed that the emission concentration of VOCs in the chemical industry ranged from 1.16 to 155.59 mg/m. Alkanes were the main emission components of MCC (62.0%), PE (55.1%), and OC (58.5%). Alkenes (46.5%) were important components of PM, followed by alkanes (23.8%) and oxygenated volatile organic compounds (OVOCs) (21.2%). Halocarbons (8.6%-71.1%), OVOCs (9.7%-37.6%) and alkanes (11.2%-27.0%) were characteristic components of CO. The largest contributor to OFP was alkenes (0.6%-81.7%), followed by alkanes (9.3%-45.9%), and the lowest one was alkyne (0%-0.5%). Aromatics (66.9%-85.4%) were the largest contributing components to SOA generation, followed by alkanes (2.6%-28.5%), and the lowest one was alkenes (0%-4.1%). Ethylene and BTEX were the key active species in various chemical industries. The human health risk assessment showed workers long-term exposed to the air in the chemical industrial zone had a high cancer and non-cancer risk during work, and BTEX and dichloromethane were the largest contributors.
为研究中国工业企业挥发性有机化合物（VOCs）排放特征，选取郓城县 6 个典型化工行业作为研究对象，包括现代煤化工（MCC）、制药业（PM）、农药业（PE）、炼焦业（CO）和有机化学工业（OC）。定量分析了 91 种 VOCs 的化学组成。结果表明，化工行业 VOCs 排放浓度为 1.16～155.59mg/m。烷烃是 MCC（62.0%）、PE（55.1%）和 OC（58.5%）的主要排放成分。烯烃（46.5%）是 PM 的重要组成部分，其次是烷烃（23.8%）和含氧挥发性有机化合物（OVOCs）（21.2%）。卤代烃（8.6%～71.1%）、OVOCs（9.7%～37.6%）和烷烃（11.2%～27.0%）是 CO 的特征成分。烯烃（0.6%～81.7%）对 OFP 的贡献最大，其次是烷烃（9.3%～45.9%），炔烃最低（0%～0.5%）。芳烃（66.9%～85.4%）是 SOA 生成的最大贡献成分，其次是烷烃（2.6%～28.5%），烯烃最低（0%～4.1%）。乙烯和 BTEX 是各种化工行业的关键活性物质。人体健康风险评估表明，长期暴露于化工园区空气中的工人在工作期间患癌症和非癌症的风险较高，BTEX 和二氯甲烷是最大的贡献者。
