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Does the prohibition on open burning of straw mitigate air pollution? An empirical study in Jilin Province of China in the post-harvest season
Ist Teil von
Journal of environmental management, 2020-06, Vol.264, p.110451, Article 110451
Ort / Verlag
England: Elsevier Ltd
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
Straw open burning is common practice in agricultural production, and has been identified as highly relevant to regional haze. A variety of control measures for straw open burning have been adopted in agricultural areas to mitigate air pollution, but their contribution to air quality improvement is difficult to estimate, and has been addressed by few studies. Using Jilin Province during the post-harvest season (PHS) as a study area, we empirically evaluated the contribution of the Straw Open Burning Prohibition Plan (SOBP) to air quality improvement by response surface methodology (RMS) modeling combined with scenario analysis, and constructed and introduced a stagnant index to the RMS model. The results indicated that the adoption of the SOBP by Jilin Province in the 2018 PHS mitigated air pollution effectively. The contribution of the plan to air quality improvement was also evaluated under two scenarios: if the SOBP had been implemented during the 2015 PHS, 2016 PHS, and 2017 PHS, the cumulative PM2.5 concentration would have declined in these years by 23%, 15%, and 22%, respectively, compared with their actual values; if the SOBP had not been implemented in the 2018 PHS, the cumulative PM2.5 concentration would have increased by 10%–14% compared with the actual value. The results can provide decision makers with a reference to assess the environmental performance of the SOBP, and guidance for establishing scientific environmental regulations for cleaner agricultural production and sustainable development.
•Contribution of straw open burning prohibition to better air quality was estimated.•Air quality improvement was estimated while excluding influence of other factors.•A stagnant index was constructed and introduced to response surface modeling.•Providing policymakers with a reference for environmental performance evaluation.