引用本文:于英鹏,蒋玉波.苏北灌河口多介质多环芳烃污染调查及生态风险分析[J].环境监控与预警,2022,14(4):31-37
YU Ying-peng, JIANG Yu-bo.Pollution Investigation and Ecological Risk Analysis of Polycyclic Aromatic Hydrocarbons in Multi media in the Guanhe Estuary of Northern Jiangsu[J].Environmental Monitoring and Forewarning,2022,14(4):31-37
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苏北灌河口多介质多环芳烃污染调查及生态风险分析
于英鹏,蒋玉波1,2,3
1.盐城师范学院, 城市与规划学院,江苏 盐城 224007;2.盐城师范学院, 苏北农业农村现代化研究院,江苏 盐城 224007;3.盐城师范学院, 盐城城乡融合发展研究院,江苏 盐城 224007
摘要:
于2018年1,7和11月对苏北灌河口典型介质中多环芳烃(PAHs)的污染现状进行了调查。采用气相色谱〖CD*2〗质谱联用仪(GC MS)对水样、沉积物、植株和生物样品中16种PAHs富集组成特征及生态风险进行分析。结果表明,水相,悬浮颗粒物和沉积物中PAHs平均值均为枯季(1 998 ng/L, 2 987 ng/g, 1 056 ng/g)高于洪季(1 698 ng/L, 630 ng/g, 558 ng/g);不同季节水相、悬浮颗粒物和沉积物中均以2+3环PAHs为主;水相中苯并[a]蒽(BaA)、?(CHR)、苯并[b+k]荧蒽(B[b+k]FA)质量浓度高于美国环保署(US EPA)推荐的水质量标准,悬浮颗粒物和沉积物中芴(FL)和菲(PHE)对水生生物可能存在不利影响;互花米草和芦苇的落叶效应使得沉积物中PAHs质量分数高于光滩;芦苇根系沉积物和互花米草根系沉积物中PAHs的组成差异较大;成熟期(11月)蟹体内PAHs平均质量分数远高于生长期(7月),蟹体内更易富集低环数(2+3环)PAHs。
关键词:  多环芳烃  河口  富集水平  生态风险
DOI:
分类号:X830
基金项目:江苏高校自然科学研究面上项目(20KJB170030,18KJB170021)
Pollution Investigation and Ecological Risk Analysis of Polycyclic Aromatic Hydrocarbons in Multi media in the Guanhe Estuary of Northern Jiangsu
YU Ying-peng, JIANG Yu-bo1,2,3
1. School of Urban and Planning, Yancheng Teachers University, Yancheng, Jiangsu 224007, China;2. North Jiangsu Institute of Agricultural and Rural Modernization, Yancheng Teachers University, Yancheng, Jiangsu 224007, China;3. Yancheng Institute of Urban and Rural Integration and Development, Yancheng Teachers University, Yancheng, Jiangsu 224007, China
Abstract:
The pollution status of polycyclic aromatic hydrocarbons (PAHs) in typical media of Guanhe estuary in Northern Jiangsu was investigated in January, July and November 2018. The enrichment, composition characteristics and ecological risks of 16 PAHs in water samples, sediments, plants and biological samples were analyzed by gas chromatography mass spectrometry (GC MS).The results showed that the average mass concentration of PAHs in water phase, suspended particulate matter and sediment is higher in dry season(1 998 ng/L, 2 987 ng/g, 1 056 ng/g) than that in flood season(1 698 ng/L, 630 ng/g, 558 ng/g); the water phase, suspended particulate matter and sediments in different seasons were dominated by 2+3 rings PAHs; the mass concentration of BaA, CHR, B[b+k]FA, BaP and IP in water phase were higher than the water quality standards recommended by the U.S. Environmental Protection Agency(US EPA), fluorene (FL) and phenanthrene (PHE) in suspended particulate matter and sediments may have adverse effects on aquatic organisms; the defoliation effect of Spartina alterniflora and Phragmites australis makes the mass concentration of PAHs in sediments higher than that in bare beach; the composition of PAHs in root sediments of Phragmites australis and Spartina alterniflora is quite different; the average mass concentration of PAHs in male and female crabs was much higher in mature stage (November) than in growth stage (July), and crabs was more likely to enrich low ring number(2+3 rings) PAHs.
Key words:  Polycyclic aromatic hydrocarbons  Estuary  Enrichment level  Ecological risk