“When Beijing’s air was forecast to reach hazardous levels for three straight days earlier in December, the government issued a smog red alert. The result: Half the city’s cars were off the roads within hours, schools were closed and construction sites shut down. Less than three days later, pollution levels had dropped by 30 percent….” Star Tribune
Read it on Delhiair.org: Beijing battles its notoriously bad air pollution, while New Delhi, not so much…
delhiair.org - be informed and active about air quality in New Delhi, India 