Delhi odd/even car restrictions having "little or no" impact on nitrous oxide levels

Pollution Solutions Online: "Over in India, pollution has been dominating the headlines recently, with the Diwali festival of lights exacerbating an already serious problem. Though Delhi has imposed numerous restrictions on passenger vehicles, including maintaining the odd-even ban for over two weeks, an assessment of nitrogen oxides (NOx) above the city reveal that the schemes appear to have made little or no impact."