摘要 为评价骆马湖湖区药品及个人护理品(PPCPs)的污染状况和生态风险,利用高效液相色谱串联质谱(HPLC-MS MS)分析骆马湖表层水体中61种PPCPs的赋存浓度、空间分布特征,并根据风险熵方法进行生态风险评估.结果表明:①骆马湖表层水体中共检出15种PPCPs,其中人用7种,人、兽共用4种,兽用4种,其质量浓度范围为2.67~6514.91 ng L.卡马西平(CBZ)、避蚊胺(DEET)、舒比利(SP)、咖啡因(CF)及林可霉素(LCM)检出率均为100%,DEET、甲砜霉素(TAP)及氟苯尼考(FF)的平均值均较高,分别为162.87、61.33和56.72 ng L.②骆马湖表层水体中PPCPs的空间分布呈北高南低、西高东低的特征.不同类型PPCPs空间分布规律差异明显,人、兽共用PPCPs浓度自北向南逐渐递减,人用PPCPs浓度北部略高于南部,兽用PPCPs浓度在全湖均匀分布.③骆马湖水体中CBZ、CF具有高生态风险,恩诺沙星(ENR)、诺氟沙星(NOR)、磺胺嘧啶(SD)、罗红霉素(RXM)及LCM具有较高生态风险,可见骆马湖生态风险主要来源为人用PPCPs.研究显示,骆马湖表层水体中PPCPs浓度水平中等,但其中DEET污染较重,北部湖区应加强围网、围塘养殖管理. The concentration and spatial distribution characteristics of 61 pharmaceuticals and personal care products(PPCPs)in the surface water of Luoma Lake were investigated by the ultra performance liquid chromatography interfaced to tandem mass spectrometry(UPLC-MS MS).Moreover,the risk quotient value(RQ)method was applied to assess the ecological risks of detected PPCPs.The results showed that:(1)Fifteen PPCPs were detected in the surface water of Luoma Lake with a concentration range of 2.67-6514.91 ng L,including 7 types for humans use,4 for humans and veterinary use,and 4 for veterinary use.The detection rate of carbamazepine(CBZ),N,N-diethyl-m-toluamide(DEET),sulpiride(SP),caffeine(CF)and lincomycin(LCM)was 100%.The highest average concentrations of DEET,thiamphenicol(TAP)and florfenicol(FF),were 162.87,61.33 and 56.72 ng L,respectively.(2)The concentration of PPCPs was higher in the north and west areas than in the south and east areas of Luoma Lake.There were slightly differences in the spatial distribution of various PPCPs:the concentration of human veterinary PPCPs gradually decreased from north to south;the human PPCPs were slightly higher in the north;and the veterinary PPCPs were evenly distributed throughout the lake.(3)CBZ and CF in Luoma Lake were at high ecological risk.Enrofloxacin(ENR),norfloxacin(NOR),sulfadiazine(SD),roxithromycin(RXM)and LCM were at a medium to high level.Humans use PPCPs were the main source of ecological risk in Luoma Lake.The level of PPCPs in the surface water of Luoma Lake was moderate,and the pollution of DEET was serious.Therefore,the management of seine net and pond aquaculture in the northern lake area should be strengthened.
出处 《环境科学研究》 CAS CSCD 北大核心 2021年第4期902-909,共8页 Research of Environmental Sciences
基金 国家水体污染控制与治理科技重大专项(No.2017ZX07301006-006) 安徽省自然科学基金(No.1908085MD103)。
关键词 骆马湖 药品及个人护理品(PPCPs) 表层水体 分布特征 生态风险评估 Luoma Lake pharmaceuticals and personal care products(PPCPs) surface water distribution characteristics risk assessment
