Perhaps inspired by the nuclear-fallout shelters of the ‘50s and ‘60s, Bill Bounds stands at the entrance to his underground smog-alert chamber in the L.A. suburb of Manhattan Beach in 1971.
The Airparif monitoring agency said smog density was still near alert levels Monday, but rain forecast for Tuesday was expected to clear the air.
空气监测机构表示，周一雾霾浓度仍然处于警戒水平，但是预计周二的降雨能够净化空气。
3
A smog-shrouded Chinese city canceled airline flights Sunday due to poor visibility and parents took children to hospitals on the second day of a pollution alert across the country's north.