团 体 标 准 T/ACEF261－2026 河湖库底泥重金属污染调查与评价技术规范 Technicalspecificationforinvestigationandassessmentofheavymetalpollutionin river,lakeandreservoirsediments 2026-01-28发布 2026-02-01实施ICS13.020.40 CCSN77 中华环保联合会发布 全国团体标准信息平台 全国团体标准信息平台 T/ACEF261－2026 I目次 前言......................................................................................................................................................II 1范围.......................................................................................................................................................1 2规范性引用文件...................................................................................................................................1 3术语和定义...........................................................................................................................................1 3.1底泥sediment............................................................................................................................1 3.2单因子指数法single-factorindexmethod................................................................................1 3.3地累积指数法geo-accumulationindexmethod.......................................................................2 3.4潜在生态风险指数法potentialecologicalhazardindexmethod.............................................2 4评价原则与流程...................................................................................................................................2 4.1评价原则....................................................................................................................................2 4.2工作流程....................................................................................................................................2 5初步调查...............................................................................................................................................3 5.1资料收集与现场踏勘................................................................................................................3 5.2采样点布设................................................................................................................................3 5.3样品采集....................................................................................................................................4 5.4分析检测....................................................................................................................................4 6初步评价...............................................................................................................................................4 6.1评价方法....................................................................................................................................5 6.2评价分级....................................................................................................................................6 6.3结果判定....................................................................................................................................7 7详细调查...............................................................................................................................................7 7.1加密点位布设............................................................................................................................7 7.2样品采集....................................................................................................................................8 7.3分析检测....................................................................................................................................8 8最终评价...............................................................................................................................................8 8.1评价方法....................................................................................................................................8 8.2评价分级....................................................................................................................................8 8.3结果判