• Poor fuel quality
• Improper vehicle maintenance
• Dated vehicle technology
• Non-proactive traffic planning
Following steps can be taken by the state and even individuals to save the environment.
•Adopt energy efficient engines
All vehicles must have 3 way catalysts and fuel controls so that they emit out less smog. They should be made mandatory by law as has been done by the state of California.
•Build an efficient public transport system
More cars on roads mean more smog, increased pollution. Hence the need of the hour is to come up with a public transport system, which can reduce number of vehicles thereby reducing congestion, and also caters to the increasing