Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, 100194, China.
Chemosphere. 2021 Feb;264(Pt 2):128533. doi: 10.1016/j.chemosphere.2020.128533. Epub 2020 Oct 5.
Propylbenzenes (PBZs) and trimethylbenzenes (TMBs) are aromatic hydrocarbon compounds widely used in many industries with potential release to different environments. The fate and aquatic effects of these compounds in the environment were evaluated. Evidence suggests that PBZs and TMBs will rapidly volatilise from water and bioaccumulate in aquatic organisms. Under both aerobic and anaerobic conditions, these compounds are readily biodegradable, whereby 1,2,3-TMB is more stable than the others. In air, all five compounds have atmospheric photo-oxidation half-lives ranging from 0.31 to 1.55 d. The toxicity data collectively show that PBZs, 1,2,4- and 1,3,5-TMB pose high acute toxicity effects on aquatic organisms. Furthermore, freshwater species are more sensitive to these compounds than marine species. There is not much data on the occurrence of PZBs and TMBs in the aquatic environment. This review presents the current state of knowledge on the fate of PBZs and TMBs. Moreover, the acute and joint toxicity of these compounds to different aquatic organisms, especially in marine organisms, warrants further investigation.
丙苯（PBZs）和三甲苯（TMBs）是广泛应用于许多行业的芳烃化合物，具有向不同环境释放的潜在风险。本研究评估了这些化合物在环境中的归宿和水生效应。有证据表明，PBZs 和 TMBs 将从水中迅速挥发，并在水生生物中积累。在有氧和无氧条件下，这些化合物都很容易生物降解，其中 1,2,3-TMB 比其他化合物更稳定。在空气中，所有五种化合物的大气光氧化半衰期在 0.31 到 1.55 天之间。综合毒性数据表明，PBZs、1,2,4-和 1,3,5-TMB 对水生生物具有高急性毒性效应。此外，淡水物种比海洋物种对这些化合物更敏感。目前关于 PBZs 和 TMBs 在水生环境中存在的数据还不多。本综述介绍了 PBZs 和 TMBs 的归宿的现有知识。此外，这些化合物对不同水生生物，特别是海洋生物的急性和联合毒性值得进一步研究。
