Household
air pollution generated from solid fuel use for cooking
is one of the leading risk factors for ill-health globally. Deployment
of advanced cookstoves to reduce emissions has been a major focus
of intervention efforts. However, household usage of these stoves
and resulting changes in usage of traditional polluting stoves is
not well characterized. In Palwal District, Haryana, India, we carried
out an intervention utilizing the Philips HD4012 fan-assisted stove,
one of the cleanest biomass stoves available. We placed small, unobtrusive
data-logging iButton thermometers on both the traditional and Philips
stoves to collect continuous data on use patterns in 200 homes over
60 weeks. Intervention stove usage declined steadily over time and
stabilized after approximately 200 days; use of the traditional stove
remained relatively constant. We additionally evaluated how well short-duration
usage measures predicted long-term use. Measuring usage over time
of both traditional and intervention stoves provides better understanding
of cooking behaviors and can lead to more precise quantification of
potential exposure reductions and consequent health benefits attributable
to interventions