近日，广东工业大学环境健康与污染控制研究院、环境科学与工程学院安太成教授团队在石化场地周边地区大气中半挥发性有机物的污染特征方面取得最新研究进展，成果以《The pollution characteristics, source identification and health risks of multiple classes atmospheric SVOCs with complex emission sources of the petrochemical plant and other industries》为题发表在Atmospheric Environment (2023, 296,119590; https://doi.org/10.1016/j.atmosenv.2023.119590)期刊上。论文的第一作者为硕士生向军，通讯作者为安太成教授和华南所唐斌副研究员。
SVOCs是无处不在的空气污染物，但人们对它们在石化行业和周边地区的环境中的命运和来源却知之甚少。在本研究中，我们选择了中国南方某大城市的典型石化厂作为调查区域。以该工厂周围分散的居民区和其他工业园区(如电子和汽车制造业为主体)为整体研究对象，研究了其夏季和冬季的大气污染问题。重点分析了颗粒（PM2.5）和气态（PUF）中的SVOCs，包括多环芳烃(PAHs)、多溴联苯醚(PBDEs)、有机磷阻燃剂 (OPFRs)、邻苯二甲酸酯(PAEs)和替代增塑剂 (APs)等。本研究的主要目的是：i）研究大气中SVOCs的污染状况和季节性变化；ii）探索SVOCs的气粒（G-P）分配行为和内在机制；iii）确定空气中SVOCs的来源贡献；iv）评估石化场地及其周边居民通过呼吸暴露于SVOCs的健康风险。该研究结果进一步了解了石油化工工业和其他行业混杂地区周围多排放源的大气中多类SVOCs的环境命运和健康风险，特别是像APs这样的新兴化学品的健康风险是非常重要的。
论文的网址：https://doi.org/10.1016/j.atmosenv.2023.119590
本文中的研究区域与一个发展中的大都市相邻，拥有高度发达的现代工业和交通设施。PAEs（128.7±72.2 ng/m3）在大气中的含量最高，其次是APs（19.1±14.6 ng/m3）、PAHs（13.6±5.01 ng/m3）、OPFRs（3.89±1.85 ng/m3）和PBDEs（0.08±0.06 ng/m3）。在颗粒相和气相中观察到SVOCs的季节性变化（P<0.05），夏季的PAEs、APs和OPFRs的浓度高于冬季，而PAHs则相反。不同化合物的化学特性会影响大气中SVOC的G-P分配。研究地区SVOCs的来源复杂，主要来自塑料制造（20.9%）、化学添加剂应用（46.5%）和石油燃烧（32.9%）。在居民区，PAHs的估算终生肺癌风险处于中等水平，而且冬季比夏季高。相比之下，吸入邻苯二甲酸二（2-乙基己基）酯的终身癌症风险增量处于可接受水平内。石化厂是调查区域内多环芳烃的主要来源之一，对周围居民构成了不可忽视的风险。这项研究加强了我们对石化厂和其他工业复杂排放源的大气中多类SVOCs的环境归宿和健康风险的理解。
图文摘要：
英文摘要：
SVOCs are ubiquitous air contaminants, whilst little was known about their environmental fates and sources in atmosphere in ambient areas around petrochemical and other industries. Herein, the levels of typical SVOCs, polycyclic aromatic hydrocarbons (PAHs), organophosphate flame retardants (OPFRs), polybrominated diphenyl ethers (PBDEs), phthalate acid esters (PAEs), and alternative plasticizers (APs), were investigated in atmosphere of residential areas around a petrochemical industry plant. The plant is bordering a developing metropolis, with highly developed modern industries and transportations. PAEs (128.7 ± 72.2 ng/m3) were found with the highest levels in atmosphere, followed by APs (19.1 ± 14.6 ng/m3), PAHs (13.6 ± 5.01 ng/m3), OPFRs (3.89 ±1.85 ng/m3), and PBDEs (0.08 ± 0.06 ng/m3). Seasonal variation was observed for SVOCs in the particulate and gaseous phases (p < 0.05), with higher concentrations of PAEs, APs, and OPFRs in summer than winter, whereas the opposite for PAHs. Chemical properties of compounds will influence the G-P partitioning of SVOC in the atmosphere. The sources of SVOCs in the study area are complex, and mainly from plastics manufacturing (20.9%), chemical additive application (46.5%), and petroleum combustion (32.9%). The estimated lifetime lung cancer risk of PAHs was moderate in the residential areas, and was higher in winter than summer. In contrast, the incremental lifetime cancer risk for di (2-ethylhexyl) phthalate inhalation was below the acceptable level. The petrochemical plant was one of the primary sources of PAHs in the investigated area, posing a nonnegligible risk to the surrounding residents. This study enhanced our understanding of the environmental fates and health risks of multiple classes of SVOCs in atmosphere with complex emission sources near the petrochemical plant and other industries.
资助项目：本研究得到了国家重点研发项目（2019YFC1804501和2019YFC1204503）、国家自然科学基金（42077404, 42007392 和 4200734）、广东省珠江人才计划地方创新与研究团队项目（2017BT01Z032）和广东省科技项目(2022-GDUT-A0007)的支持。
