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NY air quality advisory for city, Hudson Valley
ALBANY (AP) -- State health and environmental officials are warning of poor air quality in New York City and the lower Hudson Valley on Saturday.
The ozone advisory predicts higher pollution levels. It follows a similar one for the city on Friday.
Authorities say the summer-like heat can lead to formation of ground-level ozone, a major component of smog. People should consider limiting strenuous outdoor activities.
Automobile exhaust and out-of-state smokestack emissions are primary causes.