当前位置：
X-MOL 学术
›
Environ. Pollut.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Spatial distribution and seasonal variations of atmospheric organophosphate esters (OPEs) in Tianjin, China based on gridded field observations.
Environmental Pollution ( IF 7.6 ) Pub Date : 2020-04-04 , DOI: 10.1016/j.envpol.2020.114460 Yuanyuan Liang 1 , Huan Wang 2 , Qiaoyun Yang 1 , Shengyu Cao 3 , Caiqing Yan 4 , Liwen Zhang 5 , Naijun Tang 1
Environmental Pollution ( IF 7.6 ) Pub Date : 2020-04-04 , DOI: 10.1016/j.envpol.2020.114460 Yuanyuan Liang 1 , Huan Wang 2 , Qiaoyun Yang 1 , Shengyu Cao 3 , Caiqing Yan 4 , Liwen Zhang 5 , Naijun Tang 1
Affiliation
|
The atmospheric concentrations of 14 organophosphate esters (OPEs) were monitored by passive air sampling at 33 sites to determine their spatial distributions, and seasonal variations (summer and winter) in Tianjin, North China. The total concentrations of the OPEs (∑9OPEs) in the summer ranged from 0.08 to 1113 ng/sample with a median of 98.4 ng/sample, which was non-statistically different from the concentrations obtained in the winter (which ranged from 1.93 to 548 ng/sample with a median of 46.2 ng/sample). Among the observed OPEs, the concentrations of TnBP and TCiPP were statistically higher in the summer compared with the winter (p < 0.05). For grouped OPEs, only a significantly higher level of chlorinated OPEs was found in summer than that in winter. In the winter, spatial differences were found to be significantly different between the concentrations of TnBP, TiBP, TCEP, and TEHP in the suburban and rural areas (p < 0.05). Considering the possible point-sources, in the summer, the concentrations of TDCPP, TCiPP, DPEHP, TEHP, and the total concentration of TCPs (denoted as ∑3TCP, comprised of the concentrations of TCP, TmCP, and ToCP) in an electronic-waste (e-waste) dismantling area were higher than those obtained at the other sampling sites. ∑9OPEs at the e-waste site and another site located near a manufacturing plant of organophosphate flame retardants (OFRs) were both higher than the median concentrations obtained at the other sampling sites, and TCiPP was the most abundant pollutant. In the winter, the concentrations of ∑9OPEs at the e-waste site were still higher than their median concentrations at the other sites. Because OPEs are used in aircraft lubricating oils and hydraulic fluids, an airport was thought to be another important source of TiBP and TPhP in the present study. Therefore, the e-waste site, airport, and OFR manufacturing plant may be the major sources of OPEs in the environment.
中文翻译：
基于网格化实地观测的天津大气有机磷酸酯（OPE）的空间分布和季节变化。
通过在33个地点进行的被动空气采样监测了14种有机磷酸酯（OPE）的大气浓度，以确定了其在华北地区的空间分布和季节变化（夏季和冬季）。夏季的总OPE（∑9OPEs）总浓度范围为0.08至1113 ng /样品，中位数为98.4 ng /样品，与冬季获得的浓度（1.93至548之间）无统计学差异。 ng /样本，中位数为46.2 ng /样本）。在观察到的OPE中，夏季的TnBP和TCiPP的浓度在统计上高于冬季（p <0.05）。对于成组的OPE，夏季发现的氯化OPE的水平明显高于冬季。冬季里，发现郊区和农村地区的TnBP，TiBP，TCEP和TEHP浓度之间的空间差异显着（p <0.05）。考虑到可能的点源，在夏季，电子设备中TDCPP，TCiPP，DPEHP，TEHP的浓度以及TCP的总浓度（表示为∑3TCP，由TCP，TmCP和ToCP的浓度组成）废物（电子废物）拆解面积高于其他采样点。电子废物现场和靠近有机磷酸盐阻燃剂（OFRs）生产工厂的另一处的∑9OPEs均高于其他采样点获得的中值浓度，TCiPP是最丰富的污染物。冬季里，电子废物站点的∑9OPEs浓度仍高于其他站点的中值浓度。由于OPE用于飞机润滑油和液压油，因此在本研究中，机场被认为是TiBP和TPhP的另一个重要来源。因此，电子废物场所，机场和OFR制造工厂可能是环境中OPE的主要来源。
更新日期：2020-04-20
中文翻译：
基于网格化实地观测的天津大气有机磷酸酯（OPE）的空间分布和季节变化。
通过在33个地点进行的被动空气采样监测了14种有机磷酸酯（OPE）的大气浓度，以确定了其在华北地区的空间分布和季节变化（夏季和冬季）。夏季的总OPE（∑9OPEs）总浓度范围为0.08至1113 ng /样品，中位数为98.4 ng /样品，与冬季获得的浓度（1.93至548之间）无统计学差异。 ng /样本，中位数为46.2 ng /样本）。在观察到的OPE中，夏季的TnBP和TCiPP的浓度在统计上高于冬季（p <0.05）。对于成组的OPE，夏季发现的氯化OPE的水平明显高于冬季。冬季里，发现郊区和农村地区的TnBP，TiBP，TCEP和TEHP浓度之间的空间差异显着（p <0.05）。考虑到可能的点源，在夏季，电子设备中TDCPP，TCiPP，DPEHP，TEHP的浓度以及TCP的总浓度（表示为∑3TCP，由TCP，TmCP和ToCP的浓度组成）废物（电子废物）拆解面积高于其他采样点。电子废物现场和靠近有机磷酸盐阻燃剂（OFRs）生产工厂的另一处的∑9OPEs均高于其他采样点获得的中值浓度，TCiPP是最丰富的污染物。冬季里，电子废物站点的∑9OPEs浓度仍高于其他站点的中值浓度。由于OPE用于飞机润滑油和液压油，因此在本研究中，机场被认为是TiBP和TPhP的另一个重要来源。因此，电子废物场所，机场和OFR制造工厂可能是环境中OPE的主要来源。
京公网安备 11010802027423号