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“无腿BBWBBW”-梳理天下新闻

中国工程院院士贺无腿BBWBBW克斌:中国空气质量改善主要靠“人努力”

来源: 南方周末
2024-12-20 01:20:29

最佳回答

“无腿BBWBBW”中国工程院院士贺无腿BBWBBW克斌:中国空气质量改善主要靠“人努力”

  中新无腿BBWBBW社北京12月19日电(记无腿BBWBBW者 阮煜琳)“减排措施有效实施是(中国)细颗粒物(PM2.5)浓度改善的主导因素”,中国工程院院士、清华大学碳中和研究院院长贺克斌19日在北京举办的2024中国蓝天观察论坛上说,特别是“大气十条”阶段,中国空气质量改善主要靠“人努力”,气象条件则起到了一点“天帮忙”的作用。

  贺克斌带领团队构建了大气污染浓度变化多驱动因素解耦方法,系统评估了气象条件变化、清洁空气行动减排措施对PM2.5和臭氧浓度变化的贡献。

  “2013年到2020年,二氧化硫、氮氧化物和一次PM2.5排无腿BBWBBW放量持续下降,空气质量大幅改善,证实了清洁空气行动的有效性。”贺克斌说,从贡献来看,“大气十条”期间,电力工业提标改造、燃煤锅炉整治、落后产能淘汰以及民用部门清洁取暖,是对空气质量改善最为有效的四项措施。

  当日发布的《大气中国2024:中国大气污染防治进程》报告显示,2019年至2023年,全国339个地级及以上城市,PM2.5、二氧化硫等六项常规污染物年评价浓度全面下降。2023年,全国339个地级及以上城市平均空气质量优良天数比例为85.5%,相比2019年上升3.5个百分点。同期,203个城市实现六项污染物年评价浓度全部达标,比2019年增加46个城市。

  “推动空气质量持续改善,能源、产业、交通领域的支撑缺一不可。我们的研究发现,能源安全与低碳转型并重,能源清洁低碳化转型稳步推进。”亚洲清洁空气中心空气质量项目主任张伟豪表示,在煤电仍发挥供应基础保障作用,兼顾系统调节性电源作用的同时,2023年中国可再生能源装机首次超过火电、新能源成为装机增量主体等成绩均可圈可点。

  面向空气质量持续改善的需求,上述报告建议,持续推进煤电机组升级改造,高质量推进重点行业超低排放改造、强化老旧装备淘汰和排放监管能力、释放交通行业存量减排空间等。(完)

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