Abstract
Mass size distributions of total suspended particulate matter (TSPM) was measured from Sep 2002 to April 2003 in indoor kitchen environments of five locations in Jawaharlal Nehru University (JNU), New Delhi, with the help of a high volume cascade impactor. Particulate matters were separated in five different size ranges, i.e. >10.9 μm, 10.9–5.4 μm, 5.4–1.6 μm, 1.6–0.7 μm and <0.7 μm. The particle size distribution at various sites appears to follow uni-modal trend corresponding to fine particles i.e. size range <0.7 μm. The contributions of fine particles are estimated to be approximately 50% of TSPM and PM10.9, while PM10.9 comprises 80% of TSPM. Good correlations were observed between various size fractions. Regression results reveal that TSPM can adequately act as a surrogate for PM10.9 and fine particles, while PM10.9 can also act as surrogate for fine particles. The concentrations of heavy metals are found to be dominantly associated with fine particles. However, the concentration of some metals and their size distribution, to some extent is also site specific (fuel type used).
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Gupta, S., Srivastava, A. & Jain, V.K. Particle size distribution of aerosols and associated heavy metals in kitchen environments. Environ Monit Assess 142, 141–148 (2008). https://doi.org/10.1007/s10661-007-9915-8
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DOI: https://doi.org/10.1007/s10661-007-9915-8