Heavy smog: People walking along a business street in Beijing. — AFP
BEIJING: Authorities issued their highest warnings for fog and haze as smog enveloped major cities in northern China, warning the public that visibility could drop to less than 50m.
Northern province Hebei launched an anti-pollution emergency response, listing traffic safety controls for when necessary including suspending flight takeoffs and landings, temporarily closing highways and suspending ferries, China’s meteorological bureau said in a notice.
