Air Quality Alert issued July 17 at 12:43AM EDT by NWS Wilmington OH (details ...)
The Ohio Environmental Protection Agency has issued a statewide Air Quality Advisory for the entire state of Ohio as smoke from Canadian wildfires continues to adversely impact air quality.
Pollutants across the state are expected to range from the 'Unhealthy For Sensitive Groups' category in the southwest part of the state to the 'Unhealthy' category in the rest of the state. Hourly concentrations at times may reach the 'Very Unhealthy' to 'Hazardous' categories.
It is recommended, when possible, to avoid strenuous outdoor activities, especially those with heart disease and respiratory conditions like asthma. Watch for symptoms including wheezing, coughing, chest tightness, dizziness, or burning in the nose, throat, and eyes.
For additional information, please visit the Ohio Environmental Protection Agency's website at epa.ohio.gov.
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Thursday, May 3rd, 2012
Photo by Mark Pummell/The Daily Standard

A boat applies the final doses of alum to Grand Lake on Monday afternoon. The alum is hoped to deactivate phosphorous, blue-green algae's main food source. Official results are expected in September.

Related online story:
GRAND LAKE - The $5 million alum treatment on Grand Lake that ended Monday wasn't a whole lake treatment as state officials had touted.
Bethany McCorkle, ODNR spokeswoman, said just the 4,936-acre center of the lake got alum, the same area as last year. [More]
Additional pictures on this date