The typical level for hexavalent chromium across the entire 4-County region monitored by SCAQMD is 0.06 nanograms per cubic meter. The level measured in Compton (the closest permanent SCAQMD monitoring station to Paramount) during the most recent region-wide study of air toxics was at 0.11 nanograms per cubic meter, which is more typical of our general location in a highly urbanized area.
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