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The Boston Globe

World

Smog a persistent problem in New Delhi

NEW DELHI — When an acrid blanket of gray smog settled over India’s capital last month, environmentalists warned of health hazards, India’s Supreme Court promised action, and state officials struggled to understand why the air had suddenly gone so bad.

The heavy smog has dissipated for the moment, but it has left behind a troubling reality for one of India’s most important cities: Despite measures to improve air quality, pollution is steadily worsening.

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