[Stoves] A Laboratory Assessment of 120 Air Pollutant Emissions from Biomass and Fossil Fuel Cookstoves

[Tom Miles]

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https://pubs.acs.org/doi/10.1021/acs.est.8b07019



Cookstoves emit many pollutants that are harmful to human health and the
environment. However, most of the existing scientific literature focuses on
fine particulate matter (PM2.5) and carbon monoxide (CO). We present an
extensive data set of speciated air pollution emissions from wood,
charcoal, kerosene, and liquefied petroleum gas (LPG) cookstoves.
One-hundred and twenty gas- and particle-phase constituents—including
organic carbon, elemental carbon (EC), ultrafine particles (10–100 nm),
inorganic ions, carbohydrates, and volatile/semivolatile organic compounds
(e.g., alkanes, alkenes, alkynes, aromatics, carbonyls, and polycyclic
aromatic hydrocarbons (PAHs))—were measured in the exhaust from 26
stove/fuel combinations. We find that improved biomass stoves tend to
reduce PM2.5 emissions; however, certain design features (e.g., insulation
or a fan) tend to increase relative levels of other coemitted pollutants
(e.g., EC ultrafine particles, carbonyls, or PAHs, depending on stove
type). In contrast, the pressurized kerosene and LPG stoves reduced all
pollutants relative to a traditional three-stone fire (≥93% and ≥79%,
respectively). Finally, we find that PM2.5 and CO are not strong predictors
of coemitted pollutants, which is problematic because these pollutants may
not be indicators of other cookstove smoke constituents (such as
formaldehyde and acetaldehyde) that may be emitted at concentrations that
are harmful to human health.



A Laboratory Assessment of 120 Air Pollutant Emissions from Biomass and
Fossil Fuel Cookstoves Kelsey R. Bilsback†, Jordyn Dahlke†, Kristen M. Fedak
‡, Nicholas Good‡, Arsineh Hecobian§, Pierre Herckes∥, Christian L’Orange†,
John Mehaffy†, Amy Sullivan§, Jessica Tryner†, Lizette Van Zyl†, Ethan S.
Walker‡, Yong Zhou§, Jeffrey R. Pierce§, Ander Wilson⊥, Jennifer L. Peel‡,
and John Volckens*† Environmental Science & Technology Article ASAP

DOI: 10.102110.1021/acs.est.8b07019

Copyright © 2019/06/07

American Chemical Society

https://pubs.acs.org/doi/10.1021/acs.est.8b07019
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