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Sci Total Environ. 2017 May 15;586:419-429. doi: 10.1016/j.scitotenv.2017.01.051. Epub 2017 Feb 13.

Household air pollution from various types of rural kitchens and its exposure assessment.

Author information

1
Department of Civil Engineering, PEC University of Technology, Chandigarh 160012, India.
2
School of Public Health, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India. Electronic address: Khaiwal@yahoo.com.
3
Department of Environment Studies, Panjab University (PU), Chandigarh 160014, India; Centre for Public Health, Panjab University (PU), Chandigarh 160025, India.

Abstract

Exposure to household air pollutants has become a leading environmental health risk in developing countries. Considering this, real-time temporal variation in fine particulate matter (PM2.5) and carbon monoxide (CO) concentrations were measured in various types of rural household kitchens. Observed average concentrations of PM2.5, CO, percent relative humidity (%RH) and temperature (T) in five different kitchen types were 549.6μg/m3, 4.2ppm, 70.2% and 20°C respectively. Highest CO and PM2.5 concentration were found in household performing cooking in indoor kitchens (CO: 9.3ppm; PM2.5: 696.5μg/m3) followed by outdoor kitchens (CO: 5.8ppm; PM2.5: 539.5μg/m3). The concentration of PM2.5 and CO varied according to the fuel type and highest concentration was observed in kitchens using cowdung cakes followed by agricultural residue>firewood>biogas>Liquefied Petroleum Gas (LPG). Results revealed that the pollutants concentration varied with kitchen type, fuel type and the location of kitchen. An exposure index was developed to calculate the exposure of cook, non-cook and children below 5years. Analysis of exposure index values shows that cooks, who use solid biomass fuel (SBF) in indoor kitchen, are four times more exposed to the harmful pollutants than the cooks using clean fuel. Further, using indoor PM2.5 concentrations, hazard quotient was calculated based on evaluation of intake concentration and toxicological risk, which also shows that SBF users have higher health risks (hazard quotient>1) than the clean fuel (LPG) users.

KEYWORDS:

Children; Exposure index; Hazard quotient; Rural kitchen; Solid biomass fuel; Time-activity pattern

PMID:
28209408
DOI:
10.1016/j.scitotenv.2017.01.051
[Indexed for MEDLINE]

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