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The potential co-benefits for health, economy and climate by substituting raw coal with waste cooking oil as a winter heating fuel in rural households of Northern China
Environmental Research ( IF 7.7 ) Pub Date : 2021-01-13 , DOI: 10.1016/j.envres.2020.110683
Nan Zhao , Bowen Li , Huan Li , Gang Li , Rucong Wu , Quan Hong , Philbert Mperejekumana , Shan Liu , Yuguang Zhou , Riaz Ahmad , Ali Mohammed Ibrahim Zayan , Crispin Pemberton-Pigott , Renjie Dong

The toxic emissions from coal combustion associated with domestic winter heating requirements are an important public health issue. Waste cooking oil (WCO) holds promise as a means of reducing pollutant emissions thereby improving human health with the co-benefit of decreasing climate-forcing gas emissions by avoiding the combustion of mineral coal. With an annual production of ∼2.17 Mt of WCO in Northern China, it could be used to meet the winter heating demand of ∼3.25 million rural households, offsetting ∼9.83 Mt of raw coal consumption. Through the adoption of coal-to-WCO shift in rural regions of 15 provinces, approximately 15.0%, 15.6%, 15.9% and 13.7%, respectively of CO, PM2.5, SO2 and NOX emissions would be eliminated. It is estimated that such a change would remove the respective contributions of these pollutants to the premature deaths of respectively, 63,400, 29,300, 173,00 and 31,300 rural residents. Such a positive health impact on the labor cohort would reduce the loss of labor supply and work time, as well as producing billions of RMB in economic benefits. WCO-based heating technology has the same effect on the reduction of GWC100 value as other modern energy carriers while also being cheaper and sustainable, long term. Reducing household emissions by substituting raw coal with green energy is a vital strategy to support pathways for sustainable environment design. The results of this work for the coal-to-WCO shift can reinforce the support for coal phase-out in China.

更新日期:2021-01-13
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