珠江广州河段、河涌及管道径流中双酚类化合物的污染特征与生态风险  

Pollution Characteristics and Ecological Risks of Bisphenol Compounds in Guangzhou Section of the Pearl River,River Swell and Pipeline Runoff

作　　者：梅雨贤 刘悦弘 李楠[1] 张芊芊 赵建亮 应光国 MEI Yuxian;LIU Yuehong;LI Nan;ZHANG Qianqian;ZHAO Jianliang;YING Guangguo(Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety/Ministry of Education Key Laboratory of Theoretical Chemistry of Environment/School of Environment,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学环境学院/广东省化学品污染与环境安全重点实验室/环境理论化学教育部重点实验室,广州510006

出　　处：《华南师范大学学报（自然科学版）》2024年第3期15-24,共10页Journal of South China Normal University(Natural Science Edition)

基　　金：广东省杰出青年基金项目(2022B1515020088);国家自然科学基金联合基金重点项目(NSFC U21A2036)。

摘　　要：为研究珠江广州河段双酚类化合物(BPs)污染现状、来源和生态风险,采用高效液相色谱质谱法对降雨前后珠江广州河段表层水以及周围部分管道中雨水径流进行分析。结果表明:14种BPs在珠江广州河段降雨前后分别检出13和12种,降雨前BPs总质量浓度为85.7~820 ng/L,降雨后总质量浓度为45.8~561 ng/L,降雨对BPs质量浓度有稀释作用。双酚A(BPA)、双酚F(BPF)的检出率最高为100%,平均检出质量浓度分别为雨前124 ng/L、62.1 ng/L和雨后85.4 ng/L、29.3 ng/L。不同功能区管道雨水径流中BPs总质量浓度由高到低顺序为:工业区(2950 ng/L)、住宅区(1120 ng/L)、文教区(980 ng/L),文教区与住宅区的BPA质量浓度具有显著性差异(P<0.001)。后汛期(7~9月)来自管道雨水径流的BPs排放量分别为文教区每月0.443 kg、工业区每月2.58 kg、住宅区每月0.837 kg,而珠江广州河段的通量为每月279 kg,表明管道雨水径流是受纳河流中BPs的主要潜在来源之一。生态风险评价结果表明,珠江广州河段干流中BPs对水环境影响均处于低风险水平,管道雨水径流中BPs对水环境影响更大,最高可为中等风险水平。In order to investigate the pollution status,sources,and ecological risk of bisphenol compounds(BPs)in the Guangzhou section of the Pearl River before and after rainfall events,high-performance liquid chromatography and mass spectrometry were employed to analyze stormwater runoff from the Guangzhou section of the Pearl River as well as some surrounding pipes.The results revealed that 13 out of 14 types of BPs were detected before rainfall,while 12 types were detected after rainfall.The total concentrations of BPs ranged from 85.7 to 820 ng/L before rainfall and from 45.8 to 561 ng/L after rainfall.Rainfall exhibited a certain dilution effect on BPs concentrations.Bisphenol A(BPA)and bisphenol F(BPF)had detection rates of 100%,with average concentrations of 124 ng/L and 62.1 ng/L before rain,respectively,and concentrations of 85.4 ng/L and 29.3 ng/L after rain,respectively.The total concentration of BPs in stormwater runoff varied across different functional areas,with the highest level observed in the industrial area(2950 ng/L),followed by the residential area(1120 ng/L)and the cultural and educational area(980 ng/L).Notably,there was a significant disparity in BPA concentration between the cultural and educational areas(P<0.001).In the post-flood season(July-September),the discharge of BPs from piped stormwater runoff was 0.443 kg each month in cultural and educational areas,2.58 kg each month in industrial areas,and 0.837 kg each month in residential areas,respectively.Meanwhile,the discharge of BPs in the Guangzhou section of the Pearl River reached 279 kg each month,which indicates that piped stormwater runoff is one of the major potential sources of BPs in receiving streams.The results of the ecological risk assessment indicated that BPs in the main stream of the Guangzhou section of the Pearl River were classified as low-risk,while their impact on the water environment in pipeline stormwater runoff was more significant,reaching a medium level of risk.

关 键 词：表层水 雨水径流 双酚A 双酚类化合物 生态风险 

分 类 号：J653[艺术—音乐]