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Post by grammagoldie on May 14, 2014 12:36:07 GMT -5
Hope this link works here. I found this interesting, even if old. Some surprises too. It lists by state the test readings for air filters, precipitation, milk and drinking water.
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Post by sylviak on May 27, 2014 23:18:08 GMT -5
In Canada they only post readings from dry rain free areas
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