Title: 28_Parisara_Newsletter
Volume Number: 2013
Issue Number: 28
Year of Publication: 2013
Month of Issue: April—June
Published by: Environmental Management and Policy Research Institutes (EMPRI), Bangaluru
Printed Year: 2013
Language: English
Pages: Pp.1-12
Details:
Newsletter entitle: Addressing Air Pollution Issues from Transportation Sources for the City of Bangalore: In simple terms, air pollution occurs when the air we breathe con-tains various gases, fumes, and dust in amounts that could be un-safe to the health or comfort of humans and animals or which could cause damage to plants and materials. Air pollutants are the substances that cause air pollution. There are two types of pollut-ants, primary and secondary pollutants. Pollutants that are directly released into the atmosphere are called primary pollutants. Exam-ples of primary pollutants are carbon monoxide from vehicles and sulfur dioxide from the combustion of coal.
Secondary pollutants arise when primary pollutants in the atmos-phere undergo chemical reactions. Ozone is one of the important secondary pollutants that arise due to chemical reactions between Hydrocarbons and Nitrogen oxides in the presence of sunlight. This is the ground level ozone as it is created / formed by the pri-mary pollutants that are released by man made and natural proc-esses.
Air pollution mainly occurs as a result of gaseous discharges from industry and motor vehicles. Pollution comes from number of dif-ferent sources such as industrial activities, open burning, fuel combustion, evaporation, etc. Key air pollutants, also referred as Criteria Air Pollutants (CAP) are emitted from different sources. CAP include Respirable Suspended Particulate Matter (RSPM or PM10), Suspended Particulate Matter (SPM), Sulphur Oxides (SOx), Nitrogen Oxides (NOx), Volatile Organic Compounds (VOCs) and Carbon Monoxide (CO). Emissions of CAP contrib-ute to smog, poor air quality and acid rain……………………………