New Proposed EPA Lead Dust Limits New limit dust limit on floors is 10 µg/ft2 Old limit lead dust limit on floors is 40 µg/ft2 New limit dust limit on window sills is 100 µg/ft2 Old limit lead dust limit on window sills is 250 µg/ft2 As of July 19, 2019 these levels have NOT […]
Keep all doors and windows closed for a period of two hours before any testing begins. Turn off air purification machines for twenty-four hours before the
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