<p style="text-indent:32px"><strong><span style="font-family:宋体">第一阶段调查结论：</span></strong></p><p style="text-indent:32px"><span style="font-family:宋体">根据第一阶段调查结果，关于<span style="letter-spacing:1px">黄陵县</span></span><span style="letter-spacing:1px">2024-02</span><span style="font-family:宋体;letter-spacing:1px">号宗地建设用地</span><span style="font-family:宋体;letter-spacing:-0">土壤污染状况调查项目</span><span style="font-family:宋体;letter-spacing:-0">位于黄陵县桥山街道办梨园村、虎尾村，北至沮河南五路、西至沮河南五路、南至尧坡路和尧坡东路、东至福泽九路和尧坡南路，</span><span style="font-family:宋体">中心坐标为东经</span>109.20962°<span style="font-family:宋体">，北纬</span>35.59299 °<span style="font-family:宋体;letter-spacing:-0">，</span><span style="font-family:宋体;letter-spacing:1px">本次调查地块</span><span style="font-family:宋体;letter-spacing:-0">总占地面积为</span><span style="letter-spacing:-0">51314</span><span style="font-family:宋体;letter-spacing:-0">平方米</span><span style="font-family:宋体;letter-spacing:-2px">（</span><span style="letter-spacing:1px">76.9714</span><span style="font-family:宋体;letter-spacing:-2px">亩）</span><span style="font-family:宋体">。</span><span style="font-family:宋体">调查地块权属为<span style="letter-spacing:-0">黄陵县土地收购储备拍卖中心</span>。调查地块现处于供地阶段。用地规划为居住用地。</span></p><p style="text-indent:35px"><span style="font-family:宋体;letter-spacing:1px">根据现场踏勘与人</span><span style="font-family:宋体;letter-spacing:1px">员访谈可知，</span> 2003<span style="font-family:宋体">年之前该地块为梨园村农用地<span style="letter-spacing: -0">和集体建设用地</span>；</span>2003<span style="font-family:宋体">年，地块南侧建设黄陵县桥山镇尧坡机砖厂（砖厂部分区域）；</span>2003<span style="font-family:宋体">年至</span>2015<span style="font-family: 宋体">年，地块内桥山镇尧坡机砖厂运营期，其余部分为农用地；</span>2015<span style="font-family:宋体">年至</span>2018<span style="font-family:宋体">年</span>8<span style="font-family: 宋体">月，地块内无变化；</span>2018<span style="font-family:宋体">年</span>9<span style="font-family:宋体">月</span>-2024<span style="font-family: 宋体">年，桥山镇尧坡机砖厂拆除，地块内<span style="letter-spacing:-0">堆存大量外源堆土，南侧区域内堆放遗留砖块且地块处于闲置状态；</span></span><span style="letter-spacing:-0">2024</span><span style="font-family:宋体;letter-spacing:-0">年，地块内遗留砖块被清运，仅剩堆土；截止</span><span style="letter-spacing:-0">2025</span><span style="font-family:宋体;letter-spacing:-0">年</span><span style="letter-spacing:-0">12</span><span style="font-family:宋体;letter-spacing:-0">月现场采样阶段，本地块处于闲置状态。</span></p><p style="text-indent:33px"><span style="font-family:宋体;letter-spacing:0">通过第一阶段土壤污染状况调查，调查地块可能存在的污染源为黄陵县尧坡机砖厂生产</span><span style="font-family:宋体;letter-spacing:0">经营活动中排放的废气、废水和固体废物等。</span><span style="font-family:宋体;letter-spacing:-0">根据第</span><span style="letter-spacing:-0">2.3.1</span><span style="font-family:宋体;letter-spacing:-0">、</span><span style="letter-spacing:-0">2.3.2</span><span style="font-family:宋体;letter-spacing:-0">节资料中原有企业及周边</span><span style="letter-spacing:-0">500m</span><span style="font-family:宋体;letter-spacing:-0">以内企业的生产工艺过程及产污情况分析可知，调查地块周边</span><span style="letter-spacing:-0">500m</span><span style="font-family:宋体;letter-spacing:-0">范围内</span><span style="letter-spacing:-0">5</span><span style="font-family:宋体;letter-spacing:0">家企业</span><span style="font-family:宋体;letter-spacing:-0">不会污染调查地块内土壤、地下水；调查地块内</span><span style="font-family: 宋体">土壤主要的特征污染因子为<span style="letter-spacing:0">：砷（</span></span><span style="letter-spacing: 0">As</span><span style="font-family:宋体;letter-spacing:0">）、汞（</span><span style="letter-spacing:0">Hg</span><span style="font-family:宋体;letter-spacing:0">）、</span><span style="font-family:宋体;letter-spacing:0">氟化物</span><span style="font-family:宋体;letter-spacing:0">（</span><span style="letter-spacing:0">F⁻</span><span style="font-family:宋体;letter-spacing:0">）、石油烃</span><span style="font-family:宋体;letter-spacing:-0">；</span><span style="font-family:宋体">地下水主要特征污染物因子为：氟化物（</span>F⁻<span style="font-family:宋体">）、硫酸盐<span style="letter-spacing:0">（</span></span><span style="letter-spacing:0">SO₄^2-</span><span style="font-family:宋体;letter-spacing:0">）</span><span style="font-family:宋体">、硝酸盐（</span>NO₃^-<span style="font-family:宋体">）、<span style="letter-spacing:0">砷（</span></span><span style="letter-spacing: 0">As</span><span style="font-family:宋体;letter-spacing:0">）、汞（</span><span style="letter-spacing:0">Hg</span><span style="font-family:宋体;letter-spacing:0">）、</span><span style="font-family:宋体">石油类。</span></p><p style="text-indent:33px"><span style="font-family:宋体;letter-spacing:0">通过第一阶段土壤污染状况调查，调查地块历史上存在过工业生产活动，</span> <span style="font-family:宋体;letter-spacing:0">且时间较长。由于调查期间企业已拆除且相关资料缺失，通过人员访谈明确其存在生产区、固废堆存区以及其他可能受生产影响的区域，通过污染识别分析该地块土壤和地下水环境可能会受到</span><span style="font-family:宋体">氟化物、</span>SO₂<span style="font-family:宋体">、</span>NO_X<span style="font-family:宋体">、<span style="letter-spacing:0">砷（</span></span><span style="letter-spacing:0">As</span><span style="font-family:宋体;letter-spacing:0">）、汞（</span><span style="letter-spacing:0">Hg</span><span style="font-family:宋体;letter-spacing:0">）、</span><span style="font-family:宋体">石油<span style="letter-spacing:0">烃</span>等污染物的影响。<span style="letter-spacing:0">据《建设用地土壤污染状况调查技术导则》（</span></span><span style="letter-spacing:0">HJ25.1-2019</span><span style="font-family:宋体;letter-spacing:0">）要求，当第一阶段土壤污染状况调查结果表明地块及周边区域存在可能的污染源时，需进行第二阶段土壤污染状况调查。因此，根据第一阶段污染调查结果判断，该调查地块需要进行第二阶段土壤污染状况调查。</span></p><p style="text-indent:32px"><a><strong><span style="font-family:宋体">第二阶段调查结论：</span></strong></a></p><p style="text-indent:33px"><span style="letter-spacing:0">1</span><span style="font-family:宋体;letter-spacing:0">、本</span><span style="font-family:宋体">次在调查地块内布设</span>6<span style="font-family:宋体">个采样点位、地块外布设</span>1<span style="font-family:宋体">个对照点，共采集</span>25<span style="font-family:宋体">组样品和</span>3<span style="font-family:宋体">组平行样品，检测项目包括《土壤环境质量建设用地土壤污染风险管控标准（试行）》（</span>GB 36600-2018<span style="font-family:宋体">）表</span>1<span style="font-family:宋体">中</span>45<span style="font-family:宋体">项</span>+<span style="font-family:宋体">石油烃（</span>C₁₀-C₄₀<span style="font-family:宋体">）、氟化物、</span>pH<span style="font-family:宋体">值、锰。</span></p><p style="text-indent:33px"><span style="letter-spacing:0">2</span><span style="font-family:宋体;letter-spacing:0">、本</span><span style="font-family:宋体">次在调查地块内布设</span>3<span style="font-family:宋体">个地下水取样点，采集</span>3<span style="font-family:宋体">组地下水样品和</span>1<span style="font-family:宋体">组平行样，<span style="letter-spacing:0">检测项目包括</span><span style="letter-spacing:-0">《地下水质量标准》（</span></span><span style=";letter-spacing:-0">GB/T14848-2017</span><span style="font-family:宋体;letter-spacing:-3px">），</span><span style="font-family:宋体;letter-spacing:-0">将</span><span style=";letter-spacing:-0">GB/T14848-2017</span><span style="font-family:宋体;letter-spacing:-0">表</span><span style="letter-spacing:-0">1</span><span style="font-family:宋体;letter-spacing:-0">常规项</span><span style="letter-spacing:-0">35</span><span style="font-family:宋体;letter-spacing:-0">项（</span><span style="font-family:宋体">除放射性指标和微生物指标）<span style="letter-spacing:-0">和调查地块特征污染物石油类</span>，具体包括色度、嗅和味、浑浊度、肉眼可见物、</span>pH<span style="font-family:宋体">、总硬度、溶解性总固体、硫酸盐、氯化物、铁、锰、铜、锌、铝、挥发性酚类（以苯酚计）、阴离子表面活性剂、耗氧量、氨氮、硫化物、钠、亚硝酸盐、硝酸盐、氰化物、氟化物、碘化物、汞、砷、硒、镉、铬（六价）、铅、三氯甲烷、四氯化碳、苯、甲苯、石油类。</span></p><p style="text-indent:33px"><span style="letter-spacing:0">3</span><span style="font-family:宋体;letter-spacing:0">、本地块评价过程中土壤评价选取《土壤环境质量</span> <span style="font-family:宋体;letter-spacing:0">建设用地土壤污染风险管控标准（试行）》（</span><span style="letter-spacing:0">GB 36600-2018</span><span style="font-family:宋体;letter-spacing:0">）表</span><span style="letter-spacing:0">1</span><span style="font-family:宋体;letter-spacing:0">第一类用地风险筛选值和陕西省关于锰和氟化物的背景值；地下水评价选取《地下水质量标准》（</span><span style="letter-spacing:0">GB/T 14848-2017</span><span style="font-family:宋体;letter-spacing:0">）</span><span style="letter-spacing:0">Ⅲ</span><span style="font-family:宋体;letter-spacing:0">类水质量指标和《地表水环境质量标准》（</span><span style="letter-spacing:0">GB 3838-2002</span><span style="font-family:宋体;letter-spacing:0">）进行评价。</span></p><p style="text-indent:33px"><span style="font-family:宋体;letter-spacing:0">根据分析检测结果，得到以下结论：</span></p><p style="text-indent:33px"><span style="font-family:宋体;letter-spacing:0">本次调查地块土壤环境质量符合《土壤环境质量</span> <span style="font-family:宋体;letter-spacing:0">建设用地土壤污染风险管控标准（试行）》（</span><span style="letter-spacing:0">GB 36600-2018</span><span style="font-family:宋体;letter-spacing:0">）标准中第一类用地风险筛选值要求，氟化物小于陕西省关于氟化物</span><span style="font-family:宋体;color:black;letter-spacing:0">的背景值，锰低于</span><span style="font-family:宋体;color:black">地方标准《四川省建设用地土壤污染风险管控标准》（</span><span style="color:black">DB51/2978-2023</span><span style="font-family:宋体;color:black">）中锰第一类用地筛选值</span><span style="color:black">3593 mg/kg</span><span style="font-family:宋体;color:black">，可土壤对锰的风险可接受值较高<span style="letter-spacing:0">。</span></span>pH<span style="font-family:宋体">值显示局部碱化，需关注对作物生长的影响。</span><span style="font-family:宋体;color:black;letter-spacing:0">因此，判断地块内</span><span style="font-family:宋体">土壤环境风险可控。</span></p><p style="text-indent:33px"><span style="font-family:宋体;color:black;letter-spacing:0">地下水中</span><span style="font-family:宋体;color:black">氯化物、硫酸</span><span style="font-family:宋体">盐、氨氮、溶解性总固体、钠、锰、总硬度均有不同程度的超标，其中，氯化物、硫酸盐、氨氮、溶解性总固体、钠、总硬度等六项指标超标可能与当地水质情况有关，而地下水锰超标与当地地质背景密切相关，超标点位均揭露煤层及岩石夹层，未超标点位未揭露此类地层，表明锰超标主要源于自然地质过程，非人为工业污染。除上述</span>7<span style="font-family:宋体">项指标外，其余地下水指标均符合《地下水质量标准》</span>GB/T 14848-2017<span style="font-family:宋体">三类标准。因此，</span><span style="font-family:宋体;color:black;letter-spacing:0">判断地块内</span><span style="font-family:宋体">地下水环境风险可控。</span></p><p style="text-indent:33px"><span style="font-family:宋体;letter-spacing:0">综上，调查地块所在区域土壤和地下水环境状况可以接受，调查地块可按照相关规划进行开发利用，本次调查可于第二阶段（初步采样分析）结束。</span></p><p><br/></p>