[Stoves] News: World Bank blog on eradicating household air pollution

[Nikhil Desai]

Eradicating household air pollution will pay for itself
<http://blogs.worldbank.org/voices/eradicating-household-air-pollution-will-pay-itself>
7
Aprill 2017
Extract:

"Two major interventions have been assessed in a recent World Bank study in
Guatemala, Honduras, and Nicaragua:

i)        the introduction of improved biomass cook stoves that contain
enclosed chimneys to vent fumes directly outside from the burning of solid
fuels; and

ii)      the replacement of solid fuels with liquefied petroleum gas (LPG).

Benefits of both interventions outweigh the costs as shown by benefit-cost
ratios exceeding one (Table 1).  Previous studies by the World Bank in
Colombia, Hidalgo in Mexico, and Peru show similar results.  Roughly 40–70
percent of the benefits come from improved health. Fuelwood savings and
time savings also contribute equally to the benefits. The cost of switching
to LPG stoves is higher than for improved cookstoves because of the cost of
LPG fuel. However, the health benefits of switching to LPG are
significantly higher than for improved cookstoves. In other words, improved
cookstoves may be the most efficient solution as reflected by the high
benefit-cost ratios, but not the most effective solution.  This implies
that in order to reduce household air pollution to desired levels,
eventually there will need to be a switch from solid fuels to LPG or
electricity.

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Nikhil Desai
(India +91) 909 995 2080
*Skype: nikhildesai888*
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