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Shanghai Tells Children to Stay Inside for 7th Smoggy Day

Shanghai warned children and the elderly to stay indoors for at least a seventh day this month, intensifying pressure on local authorities to control the worst smog since government monitoring began last year.

The city’s air quality index was at 238, or “heavily polluted” at 5 p.m. yesterday, according to the local monitoring center. A warning to stay indoors is triggered any time the index exceeds 200. The index surged to a record 482 on Dec. 6 to the “severe” level, the highest of a six-tier rating system, according to China Daily. That prompted the government to order cars off the road and factories to cut production.