COMMUTER EXPOSURE TO CARBON MONOXIDE IN MADURAI CITY - MEASUREMENTS OF IN-VEHICLE CONCENTRATIONSTENNYSON DANIEL, R.V. JEBA RAJASEKHAR, P.MUTHUSUBRAMANIANAbstract Determination of human exposure to carbon monoxide in microenvironments is of prime importance for air quality assessment, air pollution abatement and epidemiological investigations. Estimation of in-vehicle concentrations of pollutants in India cities is scarce and so the present investigation is carried out to report the levels of carbon monoxide inside the automobiles that are plying within the urban limits of Madurai city. The generated database of the present investigation shows that the concentrations of carbon monoxide vary from 0.01 to 0.03 ppm in city buses, 0.01 to 0.04 ppm in auto rickshaws and 0.02 to 0.09 ppm in two wheelers. It can be concluded that the carbon monoxide concentrations in the microenvironment of current concern can supplement to the generated database on outdoor measurements of various pollutants and the combined database can be utilized for framing effective air pollution management and subsequent abatement strategies with the perspective to protect the health of the residential and floating population of Madurai city.
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