POLLUTION is the greatest killer of the present time . According to data reported in 2019 total death by all pollution sources was approx 90 lacs.Out of this 66.7 % of premature deaths were reported by air pollution only. So one can imagine the gravity of air pollution. Harmful substances contaminate the environment, making it bad,very bad, and dangerous in terms of its quality. It is expressed as the Air quality Index or AQI. Our atmosphere is the life blanket of the earth and when it is polluted our life is endangered.
BELOW IS THE CHART / YARDSTICK TO MEASURE GOOD OR HAZARDOUS AQI LEVEL
TYPES OF POLLUTION There are four types of pollution. 1 Air pollution 2- water pollution 3- Noise pollution. 4- Land pollution.