Emission Measurements from Traditional Biomass Cookstoves in South Asia and Tibet

Environmental Science & Technology
Cheryl WeyantTami C Bond

Abstract

Traditional biomass stoves are a major global contributor to emissions that impact climate change and health. This paper reports emission factors of particulate matter (PM2.5), carbon monoxide (CO), organic carbon (OC), black carbon (EC), optical absorption, and scattering from 46 South Asian, 48 Tibetan, and 4 Ugandan stoves. These measurements plus a literature review provide insight into the robustness of emission factors used in emission inventories. Tibetan dung stoves produced high average PM2.5 emission factors (23 and 43 gkg-1 for chimney and open stoves) with low average EC (0.3 and 0.7 gkg-1, respectively). Comparatively, PM2.5 from South Asian stoves (7 gkg-1) was in the range of previous measurements and near values used in inventories. EC emission factors varied between stoves and fuels ( p < 0.001), without corresponding differences in absorption; stoves that produced little EC, produced enough brown carbon to have about the same absorption as stoves with high EC emissions. In Tibetan dung stoves, for example, OC contributed over 20% of the absorption. Overall, EC emission factors were not correlated with PM2.5 and were constrained to low values, relative to PM2.5, over a wide range of combustion conditions. The a...Continue Reading

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Citations

Jan 16, 2020·Environmental Science and Pollution Research International·Pengfei ChenTao Pu
Dec 16, 2020·The Science of the Total Environment·Mohammad Maksimul IslamAndrew P Grieshop
Jun 8, 2021·Environmental Science & Technology·Haoran XuShu Tao
Aug 27, 2021·Environment International·Huizhong ShenShu Tao
Oct 2, 2021·Environmental Science & Technology·Shu TaoJianmin Ma
Nov 9, 2021·The Science of the Total Environment·Ru-Jin HuangRenjian Zhang
Dec 17, 2021·Environmental Science & Technology·Sanjeev DasariÖrjan Gustafsson

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