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How long does CCA lumber continue to be an arsenic exposure hazard? Does risk go down over time?

April 26, 2017arsenic CCA Continue exposure hazard lumber risk time

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How long does CCA lumber continue to be an arsenic exposure hazard? Does risk go down over time?

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CCA lumber of all ages can transmit high levels of arsenic. On average, the amount of arsenic transferred from a CCA board surface to hands decreases only slightly over many years.