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Distribution of Gaseous pollutants SO2 and NO2, in the urban roadside schools in Imphal City

Research Paper | September 1, 2021

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Rajukumar Khumukcham, R. S. Khoiyangbam

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J. Bio. Env. Sci.19( 3), 17-22, September 2021


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Investigations were carried out during the winter season to assess the air quality by assessing gaseous pollutants in the urban roadside schools in Imphal City. Concentrations of SO2 and NO2 were measured simultaneously inside and outside the classroom using handy air samplers. Statistical analysis of the relationship between indoor and outdoor concentration levels was carried out. The highest concentrations of SO2 and NO2 were found in the school located at the city center surrounded by busy streets and commercial activities, with an average indoor concentration of 5.73±0.69 µg/m3 and 6.76±0.17µg/m3, respectively. The overall average levels of SO2 (4.66±0.85 µg/m3) and NO2 (6.37±0.42µg/m3) were below the permissible limits laid by the NAAQs and WHO. The relationships between indoor and outdoor air quality were investigated using linear regression analysis. The calculated I/O concentration ratios were found to be less than 1. There was a positive correlation between the indoor and outdoor concentrations of SO2 (r = 0.91, at p < 0.001) and NO2 (r = 0.96, at p < 0.001) in the schools establishing the influence of outdoor sources on the indoor concentration levels.


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Distribution of Gaseous pollutants SO2 and NO2, in the urban roadside schools in Imphal City

Achour H, Carton JG, Olabi AG. 2011. Estimating vehicle emissions from road transport, case study: Dublin City. Appl. Energy 88(5), 1957-64. https://doi.org/10.1016/j.apenergy.2010.12.032

Chithra VS, Shiva Nagendra SM. 2018. A review of scientific evidence on indoor air of school building: pollutants, sources, health effects and management. Asian Journal of Atmospheric Environment 12(2), 87-108. https://doi.org/10.5572/ajae.2018.12.2.87

Dandotiya B, Jadon N, & Sharma HK. 2018. Effects of Meteorological Parameters on Gaseous Air Pollutant Concentrations in Urban Area of Gwalior City, India. Environmental Claims Journal 1-12.  https://doi.org/10.1080/10406026.2018.1507508

Faustman EM, Silbernagel SM, Fenske RA, Burbacher TM, Ponce RA. 2000. Mechanisms underlying Children’s susceptibility to environmental toxicants. Environmental Health Perspectives 108(1), 13-21.

Habre R, Coull B, Moshier E, Godbold J, Gruni, A, Nath A, Koutrakis P. 2013. Sources of indoor air pollution in New York City residences of asthmatic children. Journal of Exposure Science & Environmental Epidemiology 24(3), 269-278.

Kampa M, Castanas E. 2008. Human health effects of air pollution. Environmental Pollution 151(2), 362-367. https://doi.org/10.1016/j.envpol.

Khoiyangbam RS. 2010. Air quality in schools located along the national highway in Jhansi city. Recent Research in Science and Technology 2(4), 63-68.

Lee HS, Kangcm, Kang BW, Kim HK. 1999. Seasonal variations of acidic air pollutants in Seoul, South Korea. Atmospheric Environment 33(19), 3143-3152. https://doi.org/10.1016/s1352-2310(98).

Lee S, Chang M. 2000. Indoor and outdoor air quality investigation at schools in Hong Kong. Chemosphere 41(1-2), 109-113.  

Manipur Science & Technology Council. 2020. MASTEC, Takyelpat Imphal, Manipur. Available from https://mastec.nic.in/modern-climate.html (Accessed March 10, 2021).

Misra P, Srivastava R, Krishnan A, Sreenivaas V, Pandav CS. 2012. Indoor Air Pollution-related Acute Lower Respiratory Infections and Low Birthweight: A Systematic Review. Journal of Tropical Pediatrics 58(6), 457-66.  

National Ambient Air Quality Standards. 2009. The Gazette of India, Ministry of Environmental and Forests Notification, National Ambient Air Quality Standards, New Delhi. Available from https://scclmines.com/env/DOCS/NAAQS-2009.pdf (Accessed April 5, 2021).

Olufemi AC, Mji A, Mukhola MS. 2018. Health risks of exposure to air pollutants among students in schools in the vicinities of coal mines. Energy Exploration & Exploitation, 014459871876548.

Ramesh BY, Manjunath N, Sanjay D, Dhanya Y. 2012. Association of indoor air pollution with acute lower respiratory tract infections in children under 5 years of age. Paediatrics and International Child Health 32(3), 132-5.

Rivas I, Viana M, Moreno T, Pandolfi M, Amato F, Reche C. 2014. Child exposure to indoor and outdoor air pollutants in schools in Barcelona, Spain. Environment International 69, 200-212. https://doi.org/10.1016/j.envint.2014.04.009 

Sutton MA, Pitcairn CER, Fowler D. 1993. The Exchange of Ammonia between the Atmosphere and Plant Communities. Advance in Ecological Research 24, 301-393. https://doi.org/10.1016/s0065-2504.  

Torresin S, Pernigotto G, Cappelletti F, Gasparella A. 2018. Combined effects of environmental factors on human perception and objective performance: A review of experimental laboratory works. Indoor Air 28(4), 525-538. https://doi.org/10.1111/ina.12457

United State Environmental Protection Agency and the United State Consumer Product Safety Commission, Office of Radiation and Indoor Air. 1995. Document #402-K-93-007. Available from URL: http://www.epa. gov/iaq/pubs/insidest.html (Accessed April 2, 2021).

World Health Organization. 2005. Air quality guidelines for particulate matter, ozone, nitrogen dioxide and sulfur dioxide Global update. Available from https://www.who.int/airpollution/publications/aqg2005/en/ (Accessed February 16, 2021).

World Health Organization. 2018. More than 90% of the world’s children breathe toxic air every day, air-every-day. Available from https://www.who. int/news/item/29-10-2018-more-than-90-of-the worlds -children-breathe-toxic-air-every-day (Accessed April 5, 2021).