Search Results

Human health is the driving force for setting the Ambient Air Quality Standards for the country. As per Auto Fuel Policy released by Govt. of India, Air Quality Monitoring and Source Apportionment Studies were initiated in six cities. Apart from determining emission data from other sources, the assessment of automotive emission inventory was done by conducting the emission testing on vehicles of different categories and vintages following a driving cycle. India has been following Modified Indian Driving Cycle (MIDC) adopted from European driving cycle which may not give a realistic assessment of vehicular emissions in laboratory as compared to on-road emissions. The variation could be due to different traffic density, land-use patterns, road infrastructure and traffic management encountered in India as compared to Europe. This paper presents the evolution of Driving Cycle developed for passenger cars in Delhi.

In a recent finding it was published that there are five (05) major cities across Delhi / NCR which falls under the World's most polluted cities (historical data 2017-2022) based on annual average PM2.5 concentration (μg/m3). The present study is entirely focused on Delhi / NCR and the measurement is done through the continuous type of air quality monitoring analyzers. Various activities like construction, manufacturing, trash burning, production units, burning of organic compounds, power plants, biomass burning, demolition, vehicular emission etc. are the key sources that contribute to poor air quality. As a result of these activities, numerous dangerous chemicals, pollutants with different ionic species (along with gases and aerosols) are released and pose serious threats to health and environment.