Physicochemical characteristics of PM2.5: Low, middle, and high–income group homes in Agra, India–a case study

Developmental Biology

Ajay Taneja¹  Pradyumn Singh¹  Renuka Saini¹ 

[1] Department of Chemistry, Dr. Bhim Rao Ambedkar University, Agra, India$$

关键词: Indoor Air Quality (IAQ);    Socioeconomic Status (SES);    fine particulate matter;    physical–chemical characteristics;    meteorological parameters;   

DOI  :  10.5094/APR.2014.041

学科分类：农业科学（综合）

来源: Dokuz Eylul Universitesi * Department of Environmental Engineering

【 摘 要 】

The present study shows the current scenario of the aggregate relation between income and pollution at the household level. The indoor sampling of fine particulate matter was conducted in low– middle– and high–income group homes in Agra City, the North Central region of India. The mean indoor concentrations of PM_2.5 were 46.7 μg/m³, 39.2 μg/m³ and 25.6 μg/m³ in low– middle– and high–income group homes respectively. The full–day variation revealed that the concentrations of fine particles were higher during morning and evening hours in all the three income group homes. The indoor meteorological parameters were also monitored. Using scanning electron microscopy coupled with energy dispersive x–ray spectrometer (SEM–EDS) chemical and elemental analysis of fine particles and their probable sources has been conducted in low– middle– high–income group homes. EDS spectra indicates the elemental composition of PM_2.5 which can be distributed into following groups of particles i.e. C–O rich (54%), F rich (42%) and other (4%) in low–income group homes. In middle– and high–income group homes F rich (59–65%), C–O rich (32–37%) and other (3–4%) were observed in PM_2.5. The SEM images of fine particles indicates that the particles are clustered into following groups i.e. aluminosilicates/silica particles, spherical carbon rich particles, nearly spherical fluorine rich particles, Mg–Si or Mg–Si–Al particles.

【 授权许可】

Unknown   

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