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Combined short-term and long-term emission controls improve air quality sustainably in China

Environmental Studies and Forestry

Combined short-term and long-term emission controls improve air quality sustainably in China

Z. Wen, X. Ma, et al.

This study unveils the dynamic impact of both short-term and long-term emission reduction strategies on China's air quality. While short-term measures brought quick relief during international events, sustained long-term policies made remarkable strides in reducing PM2.5 concentrations. However, the journey towards cleaner air is ongoing, addressing challenges like ammonia levels and transboundary pollution. Conducted by a team of experts including Zhang Wen, Xin Ma, and others, this research is a vital step towards understanding sustainable air quality improvements.

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Playback language: English
Abstract
This study investigates the effectiveness of short-term and long-term emission reduction measures in improving air quality in China. Short-term measures implemented during international events significantly reduced PM2.5 concentrations, but air quality rebounded after the events. Long-term policies led to a 54% decrease in PM2.5 in Beijing and a 23% reduction in atmospheric nitrogen deposition nationwide from 2012 to 2020. The study highlights the need for a combined approach, emphasizing the importance of sustained long-term policies alongside impactful short-term measures to achieve sustainable improvements in air quality. However, challenges remain, including increased ammonia concentrations and transboundary pollution.
Publisher
Nature Communications
Published On
Jun 17, 2024
Authors
Zhang Wen, Xin Ma, Wen Xu, Ruotong Si, Lei Liu, Mingrui Ma, Yuanhong Zhao, Aohan Tang, Yangyang Zhang, Kai Wang, Ying Zhang, Jianlin Shen, Lin Zhang, Yu Zhao, Fusuo Zhang, Keith Goulding, Xuejun Liu
Tags
air quality
emission reduction
PM2.5
long-term policies
China
pollution

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