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Emissions Measurements from Household Solid Fuel Use in Haryana, India: Implications for Climate and Health Co-benefits

pmid: 33566595
A large concern with estimates of climate and health co-benefits of "clean" cookstoves from controlled emissions testing is whether results represent what actually happens in real homes during normal use. A growing body of evidence indicates that in-field emissions during daily cooking activities differ substantially from values obtained in laboratories, with correspondingly different estimates of co-benefits. We report PM2.5 emission factors from uncontrolled cooking (n = 7) and minimally controlled cooking tests (n = 51) using traditional chulha and angithi stoves in village kitchens in Haryana, India. Minimally controlled cooking tests (n = 13) in a village kitchen with mixed dung and brushwood fuels were representative of uncontrolled field tests for fine particulate matter (PM2.5), organic and elemental carbon (p > 0.5), but were substantially higher than previously published water boiling tests using dung or wood. When the fraction of nonrenewable biomass harvesting, elemental, and organic particulate emissions and modeled estimates of secondary organic aerosol (SOA) are included in 100 year global warming commitments (GWC100), the chulha had a net cooling impact using mixed fuels typical of the region. Correlation between PM2.5 emission factors and GWC (R2 = 0.99) implies these stoves are climate neutral for primary PM2.5 emissions of 8.8 ± 0.7 and 9.8 ± 0.9 g PM2.5/kg dry fuel for GWC20 and GWC100, respectively, which is close to the mean for biomass stoves in global emission inventories.
- Colorado State University United States
- INCLEN Trust International India
- University of Illinois at Urbana Champaign United States
- California Institute of Technology United States
- University of California, Irvine United States
Chemical Sciences not elsewhere classified, 330, Science Policy, India, 333, GWC, PM 2.5 emission factors, Environmental Sciences not elsewhere classified, SOA, Biomass, Cooking, cooking tests, Household Articles, Air Pollutants, Ecology, Biomass Cookstoves, Computational Biology, Global Warming Commitments, report PM 2.5 emission factors, nonrenewable biomass harvesting, PM 2.5 emissions, Air Pollution, Indoor, Solid Fuel, Particulate Matter, Emission Factors, Biotechnology
Chemical Sciences not elsewhere classified, 330, Science Policy, India, 333, GWC, PM 2.5 emission factors, Environmental Sciences not elsewhere classified, SOA, Biomass, Cooking, cooking tests, Household Articles, Air Pollutants, Ecology, Biomass Cookstoves, Computational Biology, Global Warming Commitments, report PM 2.5 emission factors, nonrenewable biomass harvesting, PM 2.5 emissions, Air Pollution, Indoor, Solid Fuel, Particulate Matter, Emission Factors, Biotechnology
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