Abstract
The present study investigated the carbonaceous aerosol with respect to organic carbon (OC), elemental carbon (EC) and total carbon (TC) in particulate matter (PM10) in indoor environment of cafeteria located at Netaji Subhash Place, one of the hotspot locations for pollution in northwest district of Delhi during 2014–15 winter season. The collections of samples were carried out during the period of three months (December 2014 to February 2015). PM10 samples were collected by APM 800 samplers (Envirotech Pvt. Ltd., India) on Whatman 37 mm microfiber quartz filter papers for 2–3 hourly bases in the dining area of food court. The flow rate varied from 2.4 lpm to 3 lpm during the period of collection of samples. Indoor PM10 concentrations varied from 1830 to 3212 µg/m3. The concentration of OC, EC and TC in PM10 size of particulate matter varied from 54 to 318, 11 to 71 and 70 to 364 µg/m3, respectively. The percentage contribution of OC and EC in TC were varied from 80 to 90% and 10 to 20%, respectively. The percentage contribution of TC in PM10 varied from 10 to 20%, respectively. The concentration of PM10 at indoor environment of cafeteria was alarmingly high as compared to National Ambient Air Quality Standard (NAAQS), 2009. The present study revealed that concentrations of PM10, OC and EC at indoor environment of cafeteria were influenced by indoor and outdoor air pollution, meteorological parameters and guest count.
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Acknowledgements
The authors are thankful to the Director, CSIR NEERI to grant them the permission to conduct study at the Zonal Centre in Delhi. The authors are thankful to Environmental Engineering Department, DTU to allow and to publish the research work.
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Mandal, P., Sri Nagesh, M., Mandal, A. (2020). Status of Carbonaceous Aerosol at Indoor Environment of a Cafeteria in Delhi, India—A Case Study. In: Sharma, A., Goyal, R., Mittal, R. (eds) Indoor Environmental Quality. Lecture Notes in Civil Engineering, vol 60. Springer, Singapore. https://doi.org/10.1007/978-981-15-1334-3_2
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