SANTIAGO, June 21 (Reuters) - Chilean authorities declared an environmental emergency for the Santiago metropolitan region for Monday, forcing more than 900 industries to temporarily shut down and about 40 percent of the capital's 1.7 million cars off the roads.
"We're currently facing unusual conditions, with one of the driest Junes in over 40 years as well as really bad air circulation conditions in the Santiago valley in recent days, which boosts the concentration of contamination," the Environment Ministry said in a statement.
The emergency, the first since 1999, will be in place for 24 hours and can be extended further if authorities deem conditions have not improved.