DEVELOPMENT OF AN EVALUATION SYSTEM FOR RANKING QUANTITATIVE DETECTION LIST FROM NONTARGET SCREENING OF EMERGING POLLUTANTS IN ENVIRONMENTAL SAMPLES
To develop an assessment system for evaluating the ranking of the quantitative detection list from the nontarget screening of emerging pollutants in the environmental samples,specific indicators were determined by Delphi method,and the weight of each indicator was calculated by analytic hierarchy process(AHP),and the evaluation index was quantified by five-point score system.This assessment system integrated three modules,i.e.,the target,the criterion,and the index.From the perspective of nontarget screening,investigation of chemical substances,attention,ecological and environmental hazards,quantitative detection methods,etc.,15 evaluation criteria were identified and summarized into five groups,including results of nontarget screening,use of chemical substances,level of concern,ecological and environmental risks,feasibility of quantitative detection methods.The evaluation index was quantified and the weight of each index was assigned to assess the ranking of the quantitative detection list from the nontarget screening of emerging pollutants in the environmental samples.This system was then applied to a batch of environmental samples collected from South China.The top 30 emerging pollutants included 11 pharmaceutical and personal care products(PPCPs),8 endocrine-disrupting chemicals(EDCs),7 pesticides,and 4 per-and polyfluoroalkyl substances(PFASs).
emerging pollutantsnontarget screeningassessment systemanalytic hierarchy process
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