研究报告

  • 胡烨,徐辉,王殿常,王旭,曾超怡,边睿,齐维晓,刘会娟.长江重点江段枯水期药物及个人护理品(PPCPs)的空间分布特征及来源[J].环境科学学报,2022,42(2):164-173

  • 长江重点江段枯水期药物及个人护理品(PPCPs)的空间分布特征及来源
  • Spatial distribution and source of pharmaceuticals and personal care products in the dry season of the Yangtze River
  • 基金项目:长江重点江段特征污染物识别及其生态风险 (No.20192001769)
  • 作者
  • 单位
  • 胡烨
  • 桂林理工大学环境科学与工程学院,桂林 541004;清华大学环境学院,清华大学水质与水生态研究中心,北京100084
  • 徐辉
  • 清华大学环境学院,清华大学水质与水生态研究中心,北京100084
  • 王殿常
  • 中国长江三峡集团有限公司,北京 100038
  • 王旭
  • 清华大学环境学院,清华大学水质与水生态研究中心,北京100084
  • 曾超怡
  • 桂林理工大学环境科学与工程学院,桂林 541004;清华大学环境学院,清华大学水质与水生态研究中心,北京100084
  • 边睿
  • 东北师范大学环境学院,长春 130117
  • 齐维晓
  • 清华大学环境学院,清华大学水质与水生态研究中心,北京100084
  • 刘会娟
  • 清华大学环境学院,清华大学水质与水生态研究中心,北京100084
  • 摘要:药物及个人护理品(PPCPs)由于潜在的生态效应引起广泛关注,近年来在长江流域中也被普遍检出.本文研究了长江攀枝花、宜宾、泸州、重庆、涪陵、三峡、岳阳、武汉、九江和南京共计10个重点江段枯水期表层水中57种PPCPs及部分代谢产物的分布和来源,为长江流域的污染管控提供了科学支撑.结果表明,长江表层水中57种PPCPs均有不同程度检出,其中磺胺甲恶唑(SMX)、甲氧苄氨嘧啶(TMP)、土霉素(OTC)、环丙沙星(CIP)、诺氟沙星(NFX)、咖啡因(CF)、碘普罗胺(IPM)等物质的检出频率在70%以上.表层水中ΣPPCPs平均浓度为90.0~409.3 ng·L-1,咖啡因(平均值76.9 ng·L-1)、碘普罗胺(平均值20.1 ng·L-1)浓度相对较高.10个江段中,ΣPPCPs平均浓度相对较高的江段有泸州江段(409.3 ng·L-1)、九江江段(277.7 ng·L-1)和南京江段(306.9 ng·L-1).除了上游的泸州江段,整体上长江下游的PPCPs污染程度要高于上游和中游.通过咖啡因空间差异的指示结果,长江上游江段可能有较多未经处理的污水排入,或受农业面源污染较大;中下游江段中PPCPs主要来源于污水处理厂的排放.
  • Abstract:Pharmaceuticals and personal care products (PPCPs) have attracted wide attention due to their potential ecological effect. It has been widely detected in the Yangtze River Basin in recent years. The distribution and source of 57 PPCPs and their metabolites in surface water of 10 key river reaches including Panzhihua, Yibin, Luzhou, Chongqing, Fuling, Three Gorges, Yueyang, Wuhan, Jiujiang and Nanjing sections of the Yangtze River during dry season were studied, which provided scientific support for pollution control in the Yangtze River Basin. The results showed that 57 PPCPs were all detected with different levels in the Yangtze River. Among them, sulfamethoxazole(SMX), trimethoprim(TMP), oxytetracycline(OTC), ciprofloxacin(CIP), norfloxacin(NFX), caffeine(CF), iopromide(IPM) were detected with frequencies above 70%. The average concentrations of ΣPPCPs in the surface water ranged from 99.5 to 475.4 ng·L-1, and the concentrations of caffeine (average 76.9 ng·L-1) and iopromide (average 20.1 ng·L-1) were relatively higher than other pollutants. Among the 10 river reaches, the average concentrations of ΣPPCPs in Luzhou (409.3 ng·L-1), Jiujiang (277.7 ng·L-1) and Nanjing (306.9 ng·L-1) were relatively higher than those in other reaches. Except for the Luzhou River reach, the PPCPs pollution in the downstream of the Yangtze River were higher than those in the upstream and midstream. According to analysis with pollutants tracers, more raw sewage probably was discharged into the upstream of the Yangtze River, which was perhaps also seriously polluted by non-point sources such as agricultural cultivated land. The pollution sources of PPCPs in the midstream and downstream of the river were mostly contributed from sewage treatment plants discharge.

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