11种典型PPCPs在污水处理厂尾水及其周围水体中的分布特征与生态风险评估  

Distribution Characteristics and Ecological Risk Assessment of Eleven Typical PPCPs in Tail Water and Surrounding Water Bodies of a Sewage Treatment Plant

作　　者：纪建飞 孙佳 杜尔登 章霖之[2] 王延军[2] 郭迎庆 

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164 [2]常州市环境监测中心站,江苏常州213003

出　　处：《安全与环境工程》2017年第6期56-61,共6页Safety and Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项项目(2012ZX07301-001);江苏省产学研前瞻性联合研究项目(BY2016029-09)

摘　　要：药物与个人护理品(PPCPs)对水体环境的潜在风险日益引起人们的关注。采用固相萃取-高效液相色谱串联质谱(SPE-LC/MSMS)检测方法,考察了11种典型PPCPs在城镇污水处理厂尾水及其周围地表水和地下水中的赋存与分布特征,并采用RQ模型对其潜在的生态风险进行了浓度评估。结果表明:11种典型PPCPs中有9种被检出,尾水、地表水和地下水中均检出布洛芬、双氯芬酸、吉非罗齐、卡马西平和罗红霉素等目标物质,其中布洛芬的检出浓度高达166.00ng/L;PPCPs浓度在地表水和地下水中呈现出时间变化特征,主要受尾水排放、降雨产生的径流和稀释作用的影响;参照RQ模型评估水体中PPCPs的生态风险,结果显示在所有检出的目标物质中,布洛芬、双氯芬酸和双酚A的风险商值都大于0.1,表明其对水体的生态环境存在中等风险,这与该3种目标物质的频繁使用密切相关。Pharmaceutical and Personal Care Products(PPCPs)are increasingly concerned due to their potential risk to water.This paper investigates the occurrence and distribution characteristics of eleven typical PPCPs in tail water of a sewage treatment plant,and surrounding bodies including surface water and ground water by SPE LC/MSMS and evaluates the potential ecological risk of these PPCPs in water by(RQ)model.The results show that nine of the eleven typical PPCPs are detected.Among them,the contents of ibuprofen,diclofenac,gemfibrozil,carbamazepine and roxithromycin are detected in tail water,surface water and groundwater.The concentration of ibuprofen is as high as166.00ng/L.The content of PPCPs in surface water and groundwater varies with time mainly due to tail water discharge and rainfall runoff and dilution effect.In all detected target substances,the RQ value of ibuprofen,diclofenac and bisphenol A is greater than0.1,which may have a moderate ecological risk to the water environment and is closely related to the frequent use of the three target substances.

关 键 词：药物与个人护理品 固相萃取高效液相色谱串联质谱 污水处理厂 尾水 分布特征 生态风险评估 

分 类 号：X52[环境科学与工程—环境工程]