Quantification of Pollutants from Line Source

Femina A

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25-Mar-23

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Quantification of Pollutants from Line Source

Author(s):

Femina A , T.K.M College of Engineering

Keywords:

Challenging Task, Emission Factors, Good Quality Air, National Ambient Air Quality Monitoring, Pollutants

Abstract:

Getting good quality air for breathing is a challenging task in most of the Metropolitan Cities. Recently the schools and offices remain closed in Delhi because of heavy fog. The reason for the drastic increase in air pollution level is industrialization, increase in vehicle volume, natural and anthropological activities, etc. Large volume of vehicles in Metropolitan roads is considered as the major contributors for air pollution. The vehicle type, distance travelled, vehicle usage pattern and congested and unmaintained roads also play major roles for the evolution of various type of harmful pollutants from vehicles to the atmosphere. This is a part of work associated with Central Pollution Control Boards (CPCB) National Ambient Air Quality Monitoring (NAMP) Network project. A particular location in Chennai city is taken as background or reference site for the study. The pollution load from vehicles are calculated based on vehicle type, distance travelled, amount of fuel consumed. The emission factors and classification of vehicles based on engine capacity and vintage provided by Automotive Research Association India (ARAI), Pune. The study observed that more than 50% of the vehicles on the road are two wheelers. Petrol and Diesel vehicles are the main contributor as 84% and 81% for vehicular emission of CO and PM10 respectively.CO, SOX, NOX, HC and PM emissions /day with respect to Weekdays, Weekends, Shaastra ans Saarang are calculated separately. The total emissions per day are 2.3, 3.8 and 3.9 times more than weekend emissions for weekdays, Saarang and Shaastra respectively.