TORONTO – A good portion of southern Ontario is under a smog advisory.
People with asthma or lung issues may find it harder to breath today.
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Environment Canada says what has led to the smog is a low pressure wind system that transports pollutants from the United States.
That combines with local sources in southern Ontario which makes for a day of elevated air pollution.
Air quality should be back to normal by Tuesday.
(AM640)
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