SANTIAGO, Chile (AP) -- Authorities in Chile's largest city have declared an environmental emergency because of high levels of air pollution.
The declaration has forced the closure Monday of more than 1,300 businesses in Santiago that emit high levels of contaminants. It also parked 80 percent of the city's estimated 1.7 million vehicles. Only a small number of newer cars or others fitted with special catalytic converters can be used.
Authorities also recommended avoiding outdoor physical activity. The declaration comes after several days of high levels of smog and a dearth of rainfall in June.
Santiago has an estimated 7 million residents, with the Andes mountain range on one side and several smaller hills in different parts of the city that trap a grey haze of pollution.