EcoWatch - A new study has found that approximately one in four households in the United States has soil lead levels exceeding the new U.S. Environmental Protection Agency’s limit of 200 parts per million. The previous screening level was 400 ppm.
EcoWatch - A new study has found that approximately one in four households in the United States has soil lead levels exceeding the new U.S. Environmental Protection Agency’s limit of 200 parts per million. The previous screening level was 400 ppm.
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