Supplies key information on testing for PCBs in caulk or in soil or air. Testing will determine if PCBs are present in caulk and if PCBs are present, whether the potential exposure will be dermal, from inhalation and/or from ingestion. In addition, this fact sheet identifies who to contact at EPA for advice on addressing PCBs in caulk. PCBs were used in caulk between 1950 and 1978, so only buildings built or renovated during those years are at risk.
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