Air pollution should be checked at individual level:
• At individual level, we can plant trees as trees reduce air pollution.
• We can use public transportation and encourage carpooling so that air pollution can be reduced.
• Instead of going by cars and scooters for short distances, we can go by foot or by bicycles.
• By saying no to crackers we can minimise air pollution as well as noise pollution.
• We should not burn garbage and dry leaves. The burning of dry leaves and garbage release greenhouse gases which are responsible for global warming.

https://www.tiwariacademy.com/ncert-solutions/class-8/science/chapter-18/