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(a) A decade back, the enormous vehicul...

(a) A decade back, the enormous vehicular traffic in Delhi had made Delhi rank 4th among most polluted cities of the world. Two measures taken by the Delhi government brought marked improvement in air quality by 2005. What were these two measures and how did they reduce air pollution?
(b) What is the norm set by Euro-II for petrol and diesel vehicles?

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What initiatives were iaken for reducing vehicular air pollution in Delhi? Has air quality Improved In Delhi?

What initiatives were taken for reducing vehicular air pollution in Delhi? Has air quality improved in Delhi?

What initiatives were taken for reducing vehicular air pollution in Delhi? Has air quality improved in Delhi?

What initiatives were taken for reducing vehicular air pollution in Delhi? Has air quality improved in Delhi?