四川省生态环境厅等16部门联合印发《四川省打好长江保护修复攻坚战实施方案》,目标到2025年,四川省长江流域总体水质保持优良,70%以上国控断面水质达到Ⅱ类,干流水质稳定保持Ⅱ类,饮用水安全保障水平持续提升,重要河湖生态用水得到有效保障,水生态环境质量明显提升。
长江流域地表水(河流及湖库)国控、省控断面水质优良比例达到 98.5%;化学需氧量重点工程减排量14.92吨,氨氮重点工程减排量0.79吨;城市生活污水集中收集率较2020年提高5个百分点以上,县级城市建成区黑臭水体基本消除,行政村生活污水有效治理比例达75%,城市生活垃圾资源化利用率达到60%以上,畜禽粪污综合利用率提高到80%以上,农膜回收率达85%, 尾矿库环境风险隐患基本可控;新增恢复湿地面积40.46 平方公里,长江干流及主要支流水生生物完整性指数有所改善。
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