Chen Yang, Yin Hong-Ling, Wu Di, Luo Yi, Deng Xu, Xu Wei-Xin, Liu Jin-Bao
College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China.
Huan Jing Ke Xue. 2019 Sep 8;40(9):4295-4302. doi: 10.13227/j.hjkx.201901175.
In order to study the effects of atmospheric transport and the wet/dry deposition on the content and distribution of organophosphate esters (OPEs) in remote areas, seven types of OPEs including tri-n-butyl phosphate (TnBP), tri (2-chloroethyl) phosphate (TCEP), trichloropropyl phosphate (TCPP), tridichloropropyl phosphate (TDCPP), triphenyl phosphate (TPhP), tributoxyethyl phosphate (TBEP), and tris (2-ethylhexyl) phosphate (TEHP) were analyzed in plants and snow samples in Hailuogou using gas chromatography-mass spectrometry. The results showed that the pollution levels of the seven OPEs (∑7OPEs) in the plant samples ranged from 43.1 ng·g to 1050.8 ng·g. TBEP and TPhP were the main pollutants, accounting for 36%-70% and 24%-80% of the ∑7OPEs, respectively. The main pollutants in the snow in Hailuogou were the same as those in the plants, with TBEP dominating the profile of the ∑7OPEs at 47%, followed by TPhP at 24%. The analysis results of the grid analysis display system (Grads), backward trajectory model, and historical wind data of Hailuogou indicate that the OPEs in this region are affected mainly by atmospheric transmission from Chengdu and the junction of Yunnan Zhaotong and Yibin, Luzhou, and Xichang. The environment of Hailuogou has obviously been disturbed by human activities. It is necessary to conduct thorough investigations of its environmental behavior and to strengthen urban pollution control measures.
为研究大气传输和干湿沉降对偏远地区有机磷酸酯（OPEs）含量及分布的影响，采用气相色谱 - 质谱联用仪对海螺沟植物和雪样中的磷酸三丁酯（TnBP）、磷酸三（2 - 氯乙基）酯（TCEP）、磷酸三氯丙酯（TCPP）、磷酸三（二氯丙基）酯（TDCPP）、磷酸三苯酯（TPhP）、磷酸三丁氧基乙酯（TBEP）和磷酸三（2 - 乙基己基）酯（TEHP）7种OPEs进行了分析。结果表明，植物样品中7种OPEs（∑7OPEs）的污染水平在43.1 ng·g至1050.8 ng·g之间。TBEP和TPhP是主要污染物，分别占∑7OPEs的36% - 70%和24% - 80%。海螺沟雪中的主要污染物与植物中的相同，TBEP在∑7OPEs中占主导地位，为47%，其次是TPhP，占24%。网格分析显示系统（Grads）、后向轨迹模型和海螺沟历史风数据的分析结果表明，该地区的OPEs主要受成都以及云南昭通与宜宾、泸州和西昌交界处的大气传输影响。海螺沟的环境已明显受到人类活动的干扰。有必要对其环境行为进行深入调查，并加强城市污染控制措施。
