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Air Quality, Atmosphere & Health

, Volume 6, Issue 3, pp 575–587 | Cite as

Exposure of children studying in schools of India to PM levels and metal contamination: sources and their identification

  • Mahima Habil
  • David D. Massey
  • Ajay Taneja
Article

Abstract

The concentration of particulate matter (PM)10, PM5.0, PM2.5, PM1.0, PM0.50, and PM0.25 was measured along with heavy metals (Fe, Zn, Cu, Cd, Cr, Mn, Ni, and Pb) collected from settling dust in the indoor–outdoor environment of roadside and residentially located schools of Agra City, from January 2008 to May 2009. PM indoor/outdoor ratios at the roadside and residentially located schools were also determined by the meteorological parameters like temperature, humidity, and wind speed and air exchange rate. Metal geoaccumulation index shows that the contamination of Fe, Cd, Cr, Ni, Pb, and Mn was in abundant quantity in residential and roadside soil dust of the schools. The enrichment factor was calculated using Ca as a reference to the trace metal species to identify the sources. Three factors in inside and three outside the classrooms of roadside and residentially located schools were identified. These factors reflected source soil dust, road dust, vehicle emissions, industrial emissions, metal processes, and incineration activities and their contributions were estimated using principal component analysis. Measurements of such exposure levels would be helpful in prevention of environmental risks to schoolchildren at a global level for better and healthy mind of children studying at schools.

Keywords

Children exposure Enrichment Geoaccumulation Source apportionment Naturally ventilated classrooms 

Notes

Acknowledgments

Support is duly acknowledged by Science & Engineering Research Board project number (SR/FTP/ES-58/2012), Department of Science & Technology, New Delhi. The authors wish to thank the Principal Dr. A. Lall and Head Dr. Hemant Kulshrestha, Department of Chemistry, St. John’s College, Agra for providing us with the necessary facilities. We also thank authorities of all the schools for their cooperation.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.School of Chemical Sciences, Department of ChemistrySt. John’s CollegeAgraIndia
  2. 2.Department of ChemistryDr. B. R. Ambedkar UniversityAgraIndia

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