Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093197 |
Comparison of current and future PM2.5 air quality in China under CMIP6 and DPEC emission scenarios | |
Jing Cheng; Dan Tong; Yang Liu; Sha Yu; Liu Yan; Bo Zheng; Guannan Geng; Kebin He; Qiang Zhang | |
2021-06-01 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The sixth Coupled Model Intercomparison Project (CMIP6) scenarios provide opportunities to explore global climate and pollution mitigation pathways with socioeconomic features, but they might be limited on regional-scale projections due to inadequate consideration of local policies. Here, we simulated China’s PM2.5 air quality with local policy-based scenarios (DPEC) and the CMIP6 scenarios. We found both emission inventories can reproduce China’s base-year PM2.5 and chemical aerosols, while using DPEC emissions could better match in-situ observations. In addition, DPEC mitigation scenarios can better capture China’s PM2.5 decline during 2015-2019 (22% under SSP2-45-policy and 30% under SSP1-26-best) with observations (∼28%) than CMIP6 emissions. With the effects of current-year bias and inadequate considerations of pollution control policies, PM2.5 projections in 2030 and 2050 with CMIP6 mitigation scenarios are 42–48% (9–13 μg/m3) and 59–73% (8–12μg/m3) higher than projections with DEPC. Our study suggests the community should incorporate more region-specific environmental policy in future scenario designs. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/329723 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Jing Cheng,Dan Tong,Yang Liu,et al. Comparison of current and future PM2.5 air quality in China under CMIP6 and DPEC emission scenarios[J]. Geophysical Research Letters,2021. |
APA | Jing Cheng.,Dan Tong.,Yang Liu.,Sha Yu.,Liu Yan.,...&Qiang Zhang.(2021).Comparison of current and future PM2.5 air quality in China under CMIP6 and DPEC emission scenarios.Geophysical Research Letters. |
MLA | Jing Cheng,et al."Comparison of current and future PM2.5 air quality in China under CMIP6 and DPEC emission scenarios".Geophysical Research Letters (2021). |
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