Identification of decadal trends and associated causes for organic and elemental carbon in PM2.5 at Canadian urban sites

Huanbo Wang,Leiming Zhang,Xiaohong Yao,Irene Cheng,Ewa Dabek-Zlotorzynska

Environment International（2022）

引用 12|浏览14

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摘要

•Decadal trends of OC and EC were explored using the advanced time–frequency method.•Significant decrease in EC was mainly caused by reduced on-road emissions.•Slightly decrease in OC was due to two contrasting factors.•OC/EC ratio increased from 2003 to 2019 across Canada.

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关键词

Organic carbon,Elemental carbon,Long-term trends,EEMD,Canada

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