Frac sand in ambient air does not pose a health concern for Winona residents, according to the Winona Daily News. The first look at eight months’ worth of air monitoring data in downtown Winona, Minn., showed silica sand was, for the most part, undetectable. Only two samples taken from state monitors between January and August detected silica in the air,…
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Read MoreCity May be First in Minnesota to Monitor Frac Sand levels in air
According to the Winona Daily News, the city of Winona, Minn., may soon be the first in the state to monitor frac sand levels in ambient air.
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