Mehrotra, Gopal K. AIR QUALITY MEASUREMENTS AROUND LIME AND CEMENT INDUSTRY
Department of Applied Sciences, M.N.R. Engineering College, Allahabad, U.P. 211004, India (gkm@ganga.mnrec.ernet.in)
A study of the ambient air quality around lime and cement producing regions of Madhya Pradesh, India, has been made. The amounts of sulfur dioxide, nitrogen dioxide and suspended particulate matter (SPM) have been monitored. Analysis of SO2 has been done by West -Gaeke method and that of NO2 by Jacobs and Hachheiser method. SO2 concentration as an 8-hour average arithmetic mean has been found to range between 250-375 µg/m3. NO2 and SPM levels averaged between 100-150 µg/m3 and 450-1350 µg/m3 respectively indicating that the air pollution due to these far exceeds the accepted levels. Dust fall and visibility loss measurements at a distance of 100 meters have also shown marked deterioration in air quality at various points. This has been attributed to the physico-chemical characteristics of the raw materials used in the manufacturing of lime and cement.