engineering recuitment GATE CE 2023-24 Test Series Environmental Engineering Air and Noise Pollution
Which of the following is /are correct?
1
Factors Responsible for the formation of photochemical among are sunlight, Oxides of nitrogen, Hydrocarbon, CO2, and SO2.
2
Some of major pollutants present in photochemical among are formaldehyde, HNO3, O3, and CO2.
3
Some of the pollutants that act as major parameters in deriving air quality index (AQI)are PM2.5, PM10, O3(ozone).
4
An air quality index (AQI) value of 140 can be referred to as “Moderate” according to the government of India.