<p style="margin-top:10px;margin-right:0;margin-bottom:10px;margin-left:0;text-align:center;background:white"><a><strong><span style="font-size:24px;font-family:宋体;color:black;background:white">关于发布泸州瑞兴生物工程有限公司地块</span></strong></a></p><p style="margin-top:10px;margin-right:0;margin-bottom:10px;margin-left:0;text-align:center;background:white"><strong><span style="font-size:24px;font-family: 宋体;color:black">土壤污染状况详细调查与风险评估报告</span></strong><strong><span style="font-size:24px;font-family: 宋体;color:black;background: white">的公示</span></strong></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">依据国家《土壤污染防治行动计划》（国发﹝</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2016</span><span style="font-size:19px;font-family: 仿宋;color:black">﹞</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">31</span><span style="font-size:19px;font-family:仿宋;color:black">号）和《污染地块土壤环境管理办法》（环保部令第</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">42</span><span style="font-size:19px;font-family: 仿宋;color:black">号）等文件要求，泸州瑞兴生物工程有限公司委托四川省鑫川工程检测有限公司对泸州瑞兴生物工程有限公司地块开展土壤污染状况详细调查及风险评估工作，已于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2025</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">6</span><span style="font-size:19px;font-family:仿宋;color:black">月</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">18</span><span style="font-size:19px;font-family: 仿宋;color:black">日在泸州市完成专家评审会，并形成专家评审意见，四川省鑫川工程检测有限公司院按照专家意见进行了修改完善。</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2026</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1</span><span style="font-size:19px;font-family:仿宋;color:black">月</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">13</span><span style="font-size:19px;font-family: 仿宋;color:black">日，四川省生态环境科学研究院在成都市组织专家对《泸州瑞兴生物工程有限公司地块土壤污染状况详细调查及风险评估报告》进行复核审查会，并通过复核，现予以公示。</span></p><p style="margin-left:0;text-indent:37px;line-height:35px"><a><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">一、 </span></strong><strong><span style="font-size:19px;font-family:仿宋;color:black">项目概况</span></strong></a></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">泸州瑞兴生物公司于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2003</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3</span><span style="font-size:19px;font-family:仿宋;color:black">月在泸县百和镇楼方咀村五组投资建设“</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">600</span><span style="font-size:19px;font-family: 仿宋;color:black">吨</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">/</span><span style="font-size:19px;font-family:仿宋;color:black">年己二醇技改及</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">300</span><span style="font-size:19px;font-family: 仿宋;color:black">吨</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">/</span><span style="font-size:19px;font-family:仿宋;color:black">年阿伟昔酮迁建项目”，该项目于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2009</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">7</span><span style="font-size:19px;font-family:仿宋;color:black">月建设完成并投入正式使用。</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2009</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">7</span><span style="font-size:19px;font-family:仿宋;color:black">月</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">-2013</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">12</span><span style="font-size:19px;font-family:仿宋;color:black">月期间设有己二醇及阿伟昔酮生产线各一条，年产己二醇</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">600</span><span style="font-size:19px;font-family: 仿宋;color:black">吨、阿伟昔酮</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">300</span><span style="font-size:19px;font-family: 仿宋;color:black">吨。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2013</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">12</span><span style="font-size:19px;font-family:仿宋;color:black">月泸州瑞兴生物工程有限公司在原有厂区范围内进行技术改造，投资建设“改建</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">300</span><span style="font-size:19px;font-family: 仿宋;color:black">公斤</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">/</span><span style="font-size:19px;font-family:仿宋;color:black">年单唾液酸四己糖神经节苷脂钠厂房购置设备及配套设施建设技改项目”，该项目于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2014</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3</span><span style="font-size:19px;font-family:仿宋;color:black">月建设完成并投入使用。</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2014</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3</span><span style="font-size:19px;font-family:仿宋;color:black">月</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">-2020</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2</span><span style="font-size:19px;font-family:仿宋;color:black">月期间设有单唾液酸四己糖神经节苷脂钠生产线一条，年产单唾液酸四己糖神经节苷脂钠</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">300kg</span><span style="font-size:19px;font-family: 仿宋;color:black">，不再生产己二醇及阿伟昔酮。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2020</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2</span><span style="font-size:19px;font-family:仿宋;color:black">月泸州瑞兴生物工程有限公司停止生产并拆除部分设备搬迁至四川奇格曼药业有限公司新厂区，该新厂区位于四川省泸州市泸县神仙桥产业园内。原厂区地块（即本项目调查地块）随即进入闲置状态</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2022</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">7</span><span style="font-size:19px;font-family:仿宋;color:black">月，泸州瑞兴生物工程有限公司委托四川十安环保工程有限公司开展该地块土壤污染状况初步调查相关工作，并于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2023</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">5</span><span style="font-size:19px;font-family:仿宋;color:black">月编制完成《泸州瑞兴生物工程有限公司土壤污染状况初步调查报告》。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">根据初调报告结论显示：泸州瑞兴生物工程有限公司地块土壤中污染物含量均未超过《土壤环境质量建设用地土壤污染风险管控标准（试行）》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB36600-2018</span><span style="font-size:19px;font-family: 仿宋;color:black">）中第二类用地土壤污染风险筛选值，对人体健康的风险可以忽略（即低于可接受水平）；地下水调查结果发现氨氮指标超标，分析地块周边不涉及其他工业企业，主要污染源为农村面源污染，氨氮超标主要源于周边农村面源污染，与该地块历史生产活动无直接关联。基于此，初步调查结论认为该地块不需要进行后续详细采样调查、风险评估工作。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">又根据</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2023</span><span style="font-size:19px;font-family: 仿宋;color:black">年四川省生态环境厅组织对全省部分地块土壤污染状况调查报告开展抽查复核结果显示：泸州瑞兴地块内土壤样品的检测值均未超过《土壤环境质量</span> <span style="font-size:19px;font-family: 仿宋;color:black">建设用地土壤污染风险管控标准（试行）》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB36600</span><span style="font-size:19px;font-family: 仿宋;color:black">）中第二类用地的风险筛选值，与初步调查结论一致。但地下水检测结果中部分点位的三氯甲烷和二氯甲烷浓度超出《地下水质量标准》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB/T 14848-2017</span><span style="font-size:19px;font-family:仿宋;color:black">）中的</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">IV</span><span style="font-size:19px;font-family: 仿宋;color:black">类标准限值，与初步调查结果存在差异。因此，为确保地块后续安全利用，本项目地块需进一步开展土壤污染状况详细调查，以核实和明确是否存在污染。确保地块环境风险得到科学评估。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">接受委托后<a>，四川省鑫川工程检测有限公司院对泸州瑞兴生物地块开展了土壤污染状况详细调查和风险评估，截至</a></span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2025</span><span style="font-size:19px;font-family:仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">6</span><span style="font-size:19px;font-family:仿宋;color:black">月，已完成了厂区地形测绘、水文地质和土壤理化性质调查、地块土壤和地下水布点采样、样品实验室检测等工作，并据此完成了《泸州瑞兴生物工程有限公司地块土壤污染状况详细调查与风险评估报告》的编制。</span></p><p style="margin-left:0;text-indent:37px;line-height:35px"><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">二、 </span></strong><strong><span style="font-size:19px;font-family:仿宋;color:black">地块概况</span></strong></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">泸州瑞兴生物工程有限公司地块（以下简称泸州瑞兴生物地块）位于泸县百和镇楼方咀村五组，本次详细调查及风险评估范围为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">11430m²</span><span style="font-size:19px;font-family: 仿宋;color:black">。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">泸州瑞兴生物工程有限公司于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2020</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2</span><span style="font-size:19px;font-family:仿宋;color:black">月停产后未进行生产活动，厂区内建构筑物、部分储罐等暂未进行拆除。仅拆除少量设备，原生产使用的大部分构建筑物仍保留于地块内。对比现场情况，初步调查阶段厂区原料库房、脑渣库房内暂存的丙酮原料已全部清运。</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2024</span><span style="font-size:19px;font-family: 仿宋;color:black">年</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10</span><span style="font-size:19px;font-family:仿宋;color:black">月，本次详细调查现场踏勘期间，地块内无残余原辅材料、产品、固体废物等堆存。厂区内初期雨水池、消防水池、循环水池等露天池体内部均不存在残留废水，仅存在少量降雨积水。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">根据业主介绍和提供资料《泸县百和镇五通场小城镇土地利用规划图（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2009-2020</span><span style="font-size:19px;font-family: 仿宋;color:black">）》显示，本项目调查地块规划用地为工业用地（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">M</span><span style="font-size:19px;font-family:仿宋;color:black">）。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">本次调查期间，地块使用权仍为泸州瑞兴生物工程有限公司所有，根据地块用地规划情况说明（详见附件</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10</span><span style="font-size:19px;font-family: 仿宋;color:black">），地块未来用地类型不发生变化，仍作为<a>工业用地</a></span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">(M)</span><span style="font-size:19px;font-family:仿宋;color:black">使用。</span></p><p style="margin-left:0;text-indent:37px;line-height:35px"><a><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">三、 </span></strong><strong><span style="font-size:19px;font-family:仿宋;color:black">水文地质调查</span></strong></a></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1</span><span style="font-size:19px;font-family: 仿宋;color:black">）根据本次调查钻探揭露，调查区覆盖层主要有第四系人工填土层（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">Q₄^ml)</span><span style="font-size:19px;font-family: 仿宋;color:black">的杂填土；第四系全新统残坡积层（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">Q₄^dl+el</span><span style="font-size:19px;font-family: 仿宋;color:black">）粉质粘土；基岩为侏罗系中统上沙溪庙组（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J₂s</span><span style="font-size:19px;font-family: 仿宋;color:black">）泥岩、泥质砂岩。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2</span><span style="font-size:19px;font-family: 仿宋;color:black">）根据本次调查地块内新建地下水井以及原有井点确定该地段流向。本次新建地下水钻孔，对地下水进行统一观测，所有钻孔均为上层滞水，</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J1</span><span style="font-size:19px;font-family: 仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J2</span><span style="font-size:19px;font-family:仿宋;color:black">井点实测水位位于强风化泥岩层，</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J3</span><span style="font-size:19px;font-family: 仿宋;color:black">井点实测水位位于杂填土层，该区域无潜水含水层，上层滞水水量及分布范围相对较大，具有连续稳定的自由水面，可按局部潜水分析，根据井内水位，结合地形及含隔水层情况，绘制了地下水等水位线图。根据水文地质调查，采用本次调查新建地下水井</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J1</span><span style="font-size:19px;font-family: 仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J2</span><span style="font-size:19px;font-family:仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">J3</span><span style="font-size:19px;font-family: 仿宋;color:black">稳定水位以及原有地下水井水位数据计算得出流向整体上是自东南向西北流。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3</span><span style="font-size:19px;font-family: 仿宋;color:black">）根据水文地质调查结果，调查区内地下含水层主要为两种类型，包气带水（松散堆积孔隙上层滞水）及基岩裂隙水。其中，松散堆积孔隙上层滞水含水层主要受大气降水、场地北侧大鹿溪流水的侧向渗透补给以及东侧、南侧农田周期性人类灌溉活动补给，沿地层孔隙径流。该含水层排泄条件也和地形地貌密切相关，上层滞水在重力作用下，在地势低洼处或下游大鹿溪方向排泄。</span></p><p style="margin-left:0;text-indent:37px;line-height:35px"><a><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">四、 </span></strong><strong><span style="font-size:19px;font-family:仿宋;color:black">详细调查</span></strong></a></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1</span><span style="font-size:19px;font-family: 仿宋;color:black">）本次调查采集所有土壤样品中污染物检测值均未超过《土壤环境质量</span> <span style="font-size:19px;font-family: 仿宋;color:black">建设用地土壤污染风险管控标准（试行）》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB 36600-2018</span><span style="font-size:19px;font-family: 仿宋;color:black">）中的第二类用地筛选值。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2</span><span style="font-size:19px;font-family: 仿宋;color:black">）本次调查采集地下水样品中，地块外上游地下水样品</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">D6</span><span style="font-size:19px;font-family:仿宋;color:black">中，各项指标检测结果均未超过《地下水质量标准》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB/T 14848-2017</span><span style="font-size:19px;font-family:仿宋;color:black">）</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">IV</span><span style="font-size:19px;font-family: 仿宋;color:black">类水质标准限值；</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">地块内及下游地下水超过《地下水质量标准》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB/T 14848-2017</span><span style="font-size:19px;font-family:仿宋;color:black">）</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">IV</span><span style="font-size:19px;font-family: 仿宋;color:black">类水质标准的指标包括总硬度、耗氧量、氯化物、氨氮、阴离子表面活性剂、铁、锰、二氯甲烷、氯仿（三氯甲烷）、苯；地下水中超标倍数、超标率较大的为氯仿、锰、二氯甲烷，其中氯仿超标率为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">71%</span><span style="font-size:19px;font-family: 仿宋;color:black">，最大超标倍数为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">16.87</span><span style="font-size:19px;font-family: 仿宋;color:black">倍；锰超标率为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">100%</span><span style="font-size:19px;font-family: 仿宋;color:black">，最大超标倍数为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">14.20</span><span style="font-size:19px;font-family: 仿宋;color:black">倍；二氯甲烷超标率为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">57%</span><span style="font-size:19px;font-family: 仿宋;color:black">，最大超标倍数为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">7.7</span><span style="font-size:19px;font-family: 仿宋;color:black">倍。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">综上，详细调查采样检测结果中地下水存在总硬度、耗氧量、氯化物、氨氮、阴离子表面活性剂、铁、锰、二氯甲烷、氯仿（三氯甲烷）、苯超过《地下水质量标准》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB/T14848-2017</span><span style="font-size:19px;font-family: 仿宋;color:black">）</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">IV</span><span style="font-size:19px;font-family:仿宋;color:black">类标准限值的情况，因此，需据此开展进一步风险评估，以判断上述地下水超标污染物造成的人体健康风险是否超过可接受水平。</span></p><p style="margin-left:0;text-indent:37px;line-height:35px"><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">五、 </span></strong><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black"> </span></strong><a><strong><span style="font-size:19px;font-family:仿宋;color:black">风险评估</span></strong></a></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">按照《建设用地土壤污染风险评估技术导则》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">HJ 25.3-2019</span><span style="font-size:19px;font-family:仿宋;color:black">），采用的单一污染物可接受致癌风险为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-6</span><span style="font-size:19px;font-family: 仿宋;color:black">，单一污染物可接受危害商为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1</span><span style="font-size:19px;font-family:仿宋;color:black">。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">根据风险评估污染物的致癌风险及危害商计算结果显示，氯仿（三氯甲烷）、二氯甲烷、苯危害商分别为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3.69</span><span style="font-size:19px;font-family: 仿宋;color:black">×</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-3</span><span style="font-size:19px;font-family: 仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">5.61</span><span style="font-size:19px;font-family: 仿宋;color:black">×</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-4</span><span style="font-size:19px;font-family: 仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1.05</span><span style="font-size:19px;font-family: 仿宋;color:black">×</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-3</span><span style="font-size:19px;font-family: 仿宋;color:black">；氯仿（三氯甲烷）、二氯甲烷、苯的致癌风险分别为</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">9.02</span><span style="font-size:19px;font-family: 仿宋;color:black">×</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-7</span><span style="font-size:19px;font-family: 仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3.66</span><span style="font-size:19px;font-family: 仿宋;color:black">×</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-10</span><span style="font-size:19px;font-family: 仿宋;color:black">、</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2.66</span><span style="font-size:19px;font-family: 仿宋;color:black">×</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-8</span><span style="font-size:19px;font-family: 仿宋;color:black">，风险评估结果表明，地下水中关注污染物氯仿（三氯甲烷）、二氯甲烷、苯的危害商均小于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1</span><span style="font-size:19px;font-family: 仿宋;color:black">，致癌风险均小于</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">10^-6</span><span style="font-size:19px;font-family: 仿宋;color:black">，地块地下水中氯仿（三氯甲烷）、二氯甲烷、苯污染物造成的人体健康风险均未超过可接受水平，地块内地下水在不饮用、无皮肤接触等暴露情况下，对人体健康的风险可以忽略，不需要采取风险管控、修复措施。</span></p><p style="margin-left:0;text-indent:37px;line-height:35px"><a><strong><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">六、 </span></strong><strong><span style="font-size:19px;font-family:仿宋;color:black">建议</span></strong></a></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">1</span><span style="font-size:19px;font-family:仿宋;color:black">）相关责任单位在后续对地块内剩余设施设备的拆除活动过程中，应严格落实《四川省建设用地土壤环境管理办法》和《企业拆除活动污染防治技术规定（试行）》等文件要求，严格按照有关规定做好防渗漏、防扬散措施，拆除后及时清运至合规处置单位或资源化利用单位，并做好相关记录，严格遵守相关政策法规，加强对地块的管控，防范相关活动污染土壤和地下水。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">2</span><span style="font-size:19px;font-family:仿宋;color:black">）针对本次调查中未进行土壤和地下水点位布设的功能区（本次调查期间部分区域厂房或设施设备尚未完全拆除），建议在该区域后续拆除完成后，对拆除范围内进行补充采样监测，开展补充调查，并报生态环境主管部门评审，以全面评估该区域土壤和地下水环境风险，确保调查工作的完整性和准确性，为后续土地利用或环境管理提供可靠依据。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">3</span><span style="font-size:19px;font-family:仿宋;color:black">）地块在下一步拆除清理、地块开发建设等活动实施过程中若发现土壤和地下水有新的污染迹象，如发现有埋藏的罐、槽、沟和恶臭的废弃物等污染痕迹时，应做好相关记录，并及时通知当地生态环境主管部门进行现场查验并妥善处置。</span></p><p style="text-indent:37px;line-height:35px"><span style="font-size:19px;font-family:仿宋;color:black">（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">4</span><span style="font-size:19px;font-family:仿宋;color:black">）根据风险评估结果，地下水中氯仿（三氯甲烷）、二氯甲烷、苯的风险可控，不需要采取风险管控、修复措施，地块内地下水总硬度、耗氧量、氯化物、氨氮、阴离子表面活性剂、铁、锰指标超过《地下水质量标准》（</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">GB/T14848</span><span style="font-size: 19px;font-family:仿宋;color:black">）Ⅳ类标准限值，同时，地块及周边地下水不涉及饮用水源</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">(</span><span style="font-size:19px;font-family:仿宋;color:black">在用、备用、应急、规划水源</span><span style="font-size:19px;font-family:'Times New Roman',serif;color:black">)</span><span style="font-size:19px;font-family:仿宋;color:black">补给径流区和保护区，周边居民不涉及饮用及使用地下水，地下水关注污染物锰无途径进入人体，但后期需要实施制度管控措施，禁止开采取水。若后期涉及到取水，需将地下水抽出处理至符合相关标准。</span></p><p> </p><p><br/></p>