Reductions in indoor black carbon concentrations from improved biomass stoves in rural India

Environmental Science & Technology
Omkar S PatangeVeerabhadran Ramanathan

Abstract

Deployment of improved biomass burning cookstoves is recognized as a black carbon (BC) mitigation measure that has the potential to achieve health benefits and climate cobenefits. Yet, few field based studies document BC concentration reductions (and resulting human exposure) resulting from improved stove usage. In this paper, data are presented from 277 real-world cooking sessions collected during two field studies to document the impacts on indoor BC concentrations inside village kitchens as a result of switching from traditional stoves to improved forced draft (FD) stoves. Data collection utilized new low-cost cellphone methods to monitor BC, cooking duration, and fuel consumption. A cross sectional study recorded a reduction of 36% in BC during cooking sessions. An independent paired sample study demonstrated a statistically significant reduction of 40% in 24 h BC concentrations when traditional stoves were replaced with FD stoves. Reductions observed in these field studies differ from emission factor reductions (up to 99%) observed under controlled conditions in laboratory studies. Other nonstove sources (e.g., kerosene lamps, ambient concentrations) likely offset the reductions. Health exposure studies should utilize redu...Continue Reading

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Citations

Jan 7, 2017·Environmental Science & Technology·Roshan WathoreAndrew P Grieshop
Apr 22, 2017·The Science of the Total Environment·Candela de la SotaMar Viana
May 1, 2019·Environmental Science and Pollution Research International·Pallavi KhandareBalvinder Kaur Sapra
Dec 21, 2018·Environmental Science and Pollution Research International·Enemona Emmanuel AdajiRevati Phalkey
Dec 5, 2018·The Science of the Total Environment·Chirantan SarkarSibaji Raha

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