Estimation of combined exposure factor due to the impact of different transport related environmental pollutants air quality and noise level in Delhi city

摘要

Purpose - The purpose of this paper is to estimate combined exposure factor (CEF) due to impact of different transport-related environmental pollutants, air quality and noise level in Delhi city. Design/methodology/approach - The Estimation of CEF takes into account the potential relative uptake of each pollutant （CO, NO, NO_2, O_3, SO_2, PM10 and PM_(2.5)） by the boarding and alighting of commuters at Public Transport facility and using motorcycle. With the help of CRRI mobile air pollution monitoring laboratory and previous CRRI reports. Findings - Combined exposure to environmental pollutants is determined based on the taking weighting factor of pollutant stressor. Results shows average stressor for CO, NO, NO_2, SO_2, PM_(2.5) and noise were 2.79 mg/m~3,331.83,210.25,16.70,241.3883 μg/m~3 and 72.5 dB(A), respectively. Similarly for motorcyclist, results shows average stressor for CO, NO, NO_2, SO_2, PM_(2.5) and noise were 5.1 mg/m~3, 483, 398, 19.3, 295 μg/m~3, and 82.7 dB(A), respectively. The results show higher exposure value for motorcyclist. Originality/value - Knowledge of exposure factor due to air and noise pollutant for bus commuter in sitting and standing and motorcyclist is not known for Delhi city.