R. Albalak et al., Assessment of PM10 concentrations from domestic biomass fuel combustion intwo rural Bolivian highland villages, ENV SCI TEC, 33(15), 1999, pp. 2505-2509
Citations number
27
Categorie Soggetti
Environment/Ecology,"Environmental Engineering & Energy
PM10, concentrations were measured in two contrasting rural Bolivian villag
es that cook with biomass fuels. In one of the villages, cooking was done e
xclusively indoors, and in the other, it was done primarily outdoors. Conce
ntrations in all potential microenvironments of exposure (i.e., home, kitch
en, and outdoors) were measured for a total of 621 samples. Geometric mean
kitchen PM10 concentrations were 1830 and 280 mu g/m(3) and geometric mean
home concentrations were 280 and 440 mu g/m(3) for the indoor and outdoor c
ooking villages, respectively. An analysis of pollutant concentrations usin
g generalized estimating equation techniques showed significant effects of
village (indoor cooking vs outdoor cooking) (p = 0.0244), location (home, k
itchen) (p < 0.0001), and interaction of village and location (p < 0.0001)o
n log-transformed PM10 concentrations. Pollutant concentrations and activit
y pattern data were used to estimate total exposure using the indirect meth
od of exposure assessment. Daily exposure for women during the nonwork seas
on was 15 120 and 6240 mu g h(-1) m(-3) for the indoor and outdoor cooking
villages, respectively. Differences in exposure to pollution between the vi
llages were not as great as might be expected based on kitchen concentratio
ns alone. This study underscores the importance of measuring pollutant conc
entrations in all microenvironments where people spend time and of shifting
the focus of air pollution studies to include rural populations in develop
ing countries.