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Quantifying indoor PM2.5 reduction through control measures


Affiliations
1 Environmental Audit and Policy Implementation Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440 020, India; Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 012, India
2 Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 012, India

This study aims to compare 10 indoor air pollution sources for their PM2.5 emissions and quantify the indoor PM2.5 reduction through control measures. PM2.5 emission rates were evaluated with experiments in a testing unit. A chemical mass balance equation was used to predict the control scenario. Two PM2.5 emission scenarios were generated, viz. emissions from a single source and a combination of two sources. The incense stick and dhoop combination showed the highest PM2.5 concentration among the six tested combinations. The emission rate reduction by 50% and doubling the room volume resulted in 75.2–79.1% and 49–50% reduction in the predicted indoor PM2.5 concentration respectively, when a combination of incense stick and dhoop was considered. The reduction in emission rate significantly reduces the predicted controlled PM2.5 concentration compared to the increase in room volume; hence control of pollution at the source is recommended

Keywords

Chemical mass balance equation, control measures, incense stick, indoor air pollution, PM2.5 concentration
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  • Quantifying indoor PM2.5 reduction through control measures

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Authors

Sangita Ghatge Goel
Environmental Audit and Policy Implementation Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440 020, India; Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 012, India
Rajesh Gupta
Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 012, India

Abstract


This study aims to compare 10 indoor air pollution sources for their PM2.5 emissions and quantify the indoor PM2.5 reduction through control measures. PM2.5 emission rates were evaluated with experiments in a testing unit. A chemical mass balance equation was used to predict the control scenario. Two PM2.5 emission scenarios were generated, viz. emissions from a single source and a combination of two sources. The incense stick and dhoop combination showed the highest PM2.5 concentration among the six tested combinations. The emission rate reduction by 50% and doubling the room volume resulted in 75.2–79.1% and 49–50% reduction in the predicted indoor PM2.5 concentration respectively, when a combination of incense stick and dhoop was considered. The reduction in emission rate significantly reduces the predicted controlled PM2.5 concentration compared to the increase in room volume; hence control of pollution at the source is recommended

Keywords


Chemical mass balance equation, control measures, incense stick, indoor air pollution, PM2.5 concentration



DOI: https://doi.org/10.18520/cs%2Fv125%2Fi12%2F1334-1338