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Under Government of India's National Air Quality Monitoring Programme (NAMP) covering 312 cities / towns in 29 States and 6 Union Territories of the country, which of the following combination has been identified for regular monitoring at all the locations ?

  • A.Sulphur Dioxide (\(SO_{2}\)), Nitrogen Dioxide (\(NO_{2}\)), Suspended Particulate Matter (\(PM_{10}\)) and Fine Particulate Matter (\(PM_{2.5}\))
  • B.Sulphur Dioxide (\(SO_{2}\)), Nitrogen Dioxide (\(NO_{2}\)), Carbon Monoxide (CO), and Suspended Particulate Matter (\(PM_{10}\))
  • C.CO, \(NO_{2}\), \(PM_{10}\) and \(PM_{2.5}\)
  • D.CO, \(NO_{2}\), Oxygen Difluoride (\(OF_{2}\)) and \(PM_{2.5}\)

Answer: A

The pollutants monitored at every location are sulphur dioxide, nitrogen dioxide, PM10 and PM2.5.

Under the National Air Quality Monitoring Programme run by the Central Pollution Control Board, four pollutants are identified for regular monitoring at all stations: SO2, NO2, respirable suspended particulate matter (PM10) and fine particulate matter (PM2.5). Other parameters such as carbon monoxide, ozone and ammonia are measured only at some stations.

Options B and C include CO, which is not monitored at every location, and option D adds oxygen difluoride, which is not a monitored ambient air pollutant at all.

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