特别选题
杨庆珊,朱云,龙世程,张冰瑶,张萌萌,袁颖枝.典型城市碳达峰能源政策下空气质量协同改善效益评估[J].环境科学学报,2023,43(1):307-317
典型城市碳达峰能源政策下空气质量协同改善效益评估
- Co-benefits of energy policies under the CO2 emission peaking target on air quality and health improvement in a typical city
- 基金项目:广东省科技计划项目(科技创新平台类)(No.2019B121201002);无人机集群高精度快速溯源项目(No.2130218003008);南方海洋 科学与工程广东省实验室(珠海)创新团队建设项目(No. 311021001)
- 杨庆珊
- 华南理工大学环境与能源学院,广东省大气环境与污染控制重点实验室,广州 510006
- 朱云
- 华南理工大学环境与能源学院,广东省大气环境与污染控制重点实验室,广州 510006
- 龙世程
- 华南理工大学环境与能源学院,广东省大气环境与污染控制重点实验室,广州 510006
- 张冰瑶
- 华南理工大学环境与能源学院,广东省大气环境与污染控制重点实验室,广州 510006
- 张萌萌
- 华南理工大学环境与能源学院,广东省大气环境与污染控制重点实验室,广州 510006
- 袁颖枝
- 华南理工大学环境与能源学院,广东省大气环境与污染控制重点实验室,广州 510006
- 摘要:碳达峰能源政策可同时实现减污降碳,带来明显的空气质量改善及人群健康效益.本研究综合利用LEAP模型、WRF-CMAQ模型和BenMAP-CE模型,量化评估了惠州市能源政策和大气污染控制措施对二氧化碳和大气污染物排放、空气质量和人群健康的影响.结果表明, 不实施碳达峰的基准情景下惠州市CO2排放将持续增长,而能源转型能使惠州市在2030年实现碳达峰值6906万t目标,碳减排贡献最大是 电力部门;大气污染末端控制措施叠加能源政策可从源头进一步减少SO2、VOCs、NOx、PM2.5的排放,较基准年2019分别减排4695、44142、38422、12493 t.能源转型情景下惠州市2035年PM2.5年均浓度可以从基准情景的18.25 μg·m-3下降至14.95 μg·m-3,小于世界卫生组织过渡期 第3阶段目标(15 μg·m-3),O3年均浓度也可大幅降低至133.68 μg·m-3;进而得到归因于PM2.5和O3的可避免早逝人数分别为448例(95% CI:143~737)和36例(95% CI:11~61),相对于基准情景获得的人群健康效益为37.88亿元(95% CI:12.37~61.56).
- Abstract:In addition to reducing carbon emissions, energy policies for CO2 emission peaking target can considerably enhance air quality and public health. This study used an integrated modeling framework that combines three models of the LEAP, the WRF-CMAQ, and the BenMAP-CE, to quantify the impacts of both energy policies and air pollution control measures on CO2 and air pollutant emissions, air quality, and public health in Huizhou. The results showed that CO2 emissions in Huizhou will continue to increase under the baseline scenario (BAU) without the implementation of carbon mitigation policies, while the CO2 emissions will peak at 69.06×106 t in 2030 due to energy transition, in which the power sector making the highest contribution to carbon reduction. With the combination of end-of-pipe air pollution control measures and energy policies, the source reductions of SO2, VOCs, NOx, and PM2.5 emissions were 4695, 44142, 38422, and 12493 tons respectively compared to the base year 2019. The annual average PM2.5 concentration in Huizhou can be reduced from 18.25 μg·m-3 in the baseline scenario to 14.95 μg·m-3 in 2035, which is less than the WHO Interim Target-3 (15 μg·m-3), and the annual average O3 concentration can be significantly decreased to 133.68 μg·m-3. Accordingly, there were 448 (95% CI: 143~737) and 36 (95% CI: 11~61) avoided premature deaths related to PM2.5 and O3, respectively, with a health benefit of 3.788 (95% CI: 1.237~6.156) billion Chinese Yuan (CNY) over the baseline scenario.