【正文】 ..................................... 55 環(huán)境空氣質量變化分析 ................................................................................. 57 聲環(huán)境 ............................................................................................................. 60 聲環(huán)境歷史監(jiān)測資料 ..................................................................................... 60 聲環(huán)境現(xiàn)狀監(jiān)測 ............................................................................................. 60 聲環(huán)境質量變化分析 ..................................................................................... 61 地下水環(huán)境 ..................................................................................................... 63 地下水環(huán)境歷史監(jiān)測情況 ............................................................................. 63 地下水環(huán)境現(xiàn)狀監(jiān)測情況 ............................................................................. 71 地下水質量變化分析 ..................................................................................... 80 土壤環(huán)境 ......................................................................................................... 82 土壤環(huán)境歷史監(jiān)測情況 ................................................................................. 82 土壤環(huán)境現(xiàn)狀監(jiān)測情況 ................................................................................. 86 土壤環(huán)境現(xiàn)狀補充監(jiān)測情況 ......................................................................... 87 土壤環(huán)境質量變化分析 ................................................................................. 88 生態(tài)環(huán)境 ......................................................................................................... 90 生態(tài)環(huán)境現(xiàn)狀調查與評價 ............................................................................. 90 尾礦庫生態(tài)環(huán)境變化情況 ............................................................................. 93 主要制約因素及生態(tài)問題 ........................................................................... 100 6 環(huán)境保護措施及有效性評估 ............................................................................................... 101 大氣環(huán)境環(huán)境保護措施 ............................................................................... 101 廢水污染治理措施 ....................................................................................... 101 地下水環(huán)境保護措施 ................................................................................... 101 噪聲污染防治措施 ....................................................................................... 102 固體廢物防治措施 ....................................................................................... 102 金川集團股份有限公司 尾礦庫 環(huán)境影響后評價報告 III 環(huán)境保護措施有效性評估 ........................................................................... 103 環(huán)境風險 ....................................................................................................... 105 環(huán)境風險事故類型 ....................................................................................... 105 事故調查 ....................................................................................................... 105 環(huán)境風險防范措施及有效性評估 ............................................................... 105 尾礦庫事故應急預案啟動及報告制度 ....................................................... 108 閉庫工作程序及要求 ................................................................................... 109 環(huán)境風險管理 ............................................................................................... 113 環(huán) 境風險防治措施有效性評估 ................................................................... 116 7 環(huán)境影響預測驗證 ............................................................................................................... 118 環(huán)境空氣預測驗證 ....................................................................................... 118 聲環(huán)境預測驗證 ........................................................................................... 118 地下水環(huán)境預測驗證 ................................................................................... 118 土壤環(huán)境預測驗證 ....................................................................................... 118 生態(tài)環(huán)境預測驗證 ....................................................................................... 118 8 環(huán)境保護改進措施 ............................................................................................................... 120 9 結論 ....................................................................................................................................... 121 項目概況 ....................................................................................................... 121 區(qū)域環(huán)境變化情況 ....................................................................................... 121 環(huán)境空氣質量現(xiàn)狀評價 ............................................................................... 121 地下水質量現(xiàn)狀評價 ................................................................................... 121 土壤質量現(xiàn)狀評價 ....................................................................................... 121 聲環(huán)境質量現(xiàn)狀評價 ................................................................................... 122 生態(tài)環(huán)境質量現(xiàn)狀評價 ............................................................................... 122 污染防治措施可行性 ................................................................................... 122 結論 ............................................................................................................... 122 附件 1：《關于金川集團有限公司鎳貧礦資源綜合利用項目環(huán)境影響報告書的批復》 ...... 124 附件 2：《關于金川集團有限公司 鎳貧礦資源綜合利用項目竣工環(huán)境保護驗收合格的函》 ...................................................................................................................................................... 128 附件 3：《關于金川集團有限公司選礦廠第三尾礦庫二期（北庫）工程環(huán)境影響報告書的批復》 ............................................................................................................................................... 137 附件 4：《甘肅省環(huán)境保護廳關于金川集團股份有限公司選礦廠第三尾礦庫二期（北庫）工程竣工環(huán)境保護驗收意見的函》 ............................................................................................... 142 附件 5：《關