Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
J Hazard Mater. 2021 Sep 5;417:125882. doi: 10.1016/j.jhazmat.2021.125882. Epub 2021 Apr 15.
Organophosphorus flame retardants (PFRs) are a group of emerging contaminants which have been detected in worldwide waters. However, source of various PFRs in the large-scale area like coastal water environment have not been clearly revealed. In this study, fifteen PFRs in coast of Guangdong-Hong Kong-Macao Greater Bay area (GBA), China were investigated, and a method of spatial pattern analysis was firstly used for pollution source identification. Seawater samples from different segments of GBA coast were analyzed and thirteen PFRs were quantified with total concentrations ranging from 32.7 to 1032.7 ng L. GBA coasts have been seriously polluted by PFRs. A hierarchical cluster analysis of the PFR concentrations in different GBA sites showed significant spatial distributions for different types of PFRs. A series of correlation analysis between PFRs distributions and spatial pattern of GBA socio-economic indicators were performed, and multiple sources including human settlement, wastewater, manufacture, construction industry, vehicles, and shipping transport were found to be correlated to PFRs pollutions in the coasts. This study indicates that spatial pattern analysis based on statistical analysis would be a promising method of analyzing environmental data and exploring pollution source in large-scale area.
有机磷阻燃剂 (PFRs) 是一组新兴的污染物，已在全球范围内的水域中被检测到。然而，像沿海这样的大面积环境中各种 PFR 的来源还没有被清楚地揭示。在本研究中，对中国粤港澳大湾区 (GBA) 沿海的 15 种 PFR 进行了调查，并首次使用空间格局分析方法进行了污染源识别。分析了来自 GBA 沿海不同地段的海水样本，共定量了 13 种 PFR，总浓度范围为 32.7 至 1032.7 ng L。GBA 沿海已受到 PFR 的严重污染。不同 GBA 地点的 PFR 浓度的层次聚类分析显示出不同类型的 PFR 具有明显的空间分布。对 PFR 分布与 GBA 社会经济指标的空间格局之间的一系列相关分析表明，包括人类住区、废水、制造业、建筑工业、车辆和航运运输在内的多个来源都与沿海地区的 PFR 污染有关。本研究表明，基于统计分析的空间格局分析将是分析大型区域环境数据和探索污染源的一种很有前途的方法。
