石家庄市滹沱河冲洪积扇地下水中BHT和TEP的污染水平及风险评价

被引：8

作者：

赵兴茹 ^{[1
]}

耿梦娇 ^{[1
]}

暴志蕾 ^{[1
,2
]}

江秋枫 ^{[1
]}

刘琰 ^{[1
]}

昌盛 ^{[1
]}

郭睿 ^{[1
]}

机构：

[1] 中国环境科学研究院国家环境保护饮用水水源地保护重点实验室环境基准与风险评估国家重点实验室

[2] 河北师范大学化学与材料科学学院

来源：

环境科学研究 | 2016年 / 29卷 / 09期

关键词：

滹沱河冲洪积扇; 地下水; 2,6-二叔丁基对甲酚; 磷酸三乙酯;

D O I：

暂无

中图分类号：

X523 [地下水]; X824 [水质评价];

学科分类号：

083001 [环境科学]; 090810 [水产品加工与质量安全];

摘要：

为了解华北平原地下水的有机污染状况,在石家庄市滹沱河冲洪积扇采集44个地下水水样,测定了被广泛应用的抗老剂BHT(2,6-二叔丁基对甲酚)和增塑剂TEP(磷酸三乙酯)的污染水平,分析了其分布受水文地质的影响及其对人体健康的风险.结果表明,ρ(BHT)在ND(低于检出限)7.158μg/L之间,中位值为0.010μg/L,检出率为98%;ρ(TEP)在ND5.081μg/L之间,中位值为0.177μg/L,检出率为70%.地下水的水文特性(如导水性、富水性和渗透系数)影响BHT和TEP的分布,二者在导水性、富水性较好和渗透性差的滹沱河冲洪积扇中部浅层孔隙水单元的质量浓度较高,分别为0.0017.158和ND3.604μg/L.石家庄市滹沱河冲洪积扇地下水中ρ(BHT)和ρ(TEP)均低于国外报道值,但检出率高于国外报道值,其中11%的地下水水样中ρ(TEP)高于OECD(经济合作与发展组织)规定的饮用水风险特征阈值(2.4μg/L).研究显示,石家庄市滹沱河冲洪积扇地区来自于地表的化工产品已淋溶到地下,并对该地区地下水造成了污染.

引用

页码：1297 / 1302

页数：6

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