Monitoring of ambient air quality in salem city, tamil nadu

Air Pollution is perhaps the commonest form of environmental degradation in the cities of both developed and developing countries. In the environment there are many pollutants which have been observed during different studies regarding air pollution. Among all the pollutants, gaseous and particulate pollutants are more important. In this paper an attempt has been made to study the status and trend of Sulphur dioxide (SO2), Oxides of Nitrogen (NOx), Respirable Suspended Particulate Matter (PM 10) and Total Suspended Particulate Matter (PM 100) in Salem Sowdeswari College premises where an air quality monitoring station have been established under National Air Quality Monitoring Programme of Central Pollution Control Board, New Delhi. Monitoring of pollutants for carried out for 24 hours (4-hour sampling for gaseous pollutants and 8 hour sampling for particulate matter) thrice a week (Monday, Wednesday and Friday), to have 156 observations in a year.