Have the high levels of hexavalent chromium found in the industrial section of town been detected in other parts of the City?
No. At this time, SCAQMD monitors located in other parts of the City have measured hexavalent chromium at levels above typical background concentrations for our region, but much lower than those recorded in some industrial areas. For instance, the SCAQMD monitor located at the PUSD Administrative Offices (corner of Somerset and California) had an average measurement of 0.15 nanograms per cubic meter over the last year. The SCAQMD monitor at Salud Park (corner of Somerset and Texaco) had measurements less than 0.25 nanograms per cubic meter over a two-week period. The SCAQMD monitor located at the edge of the City’s industrial core (corner of Vermont and Madison) had measurements less than 0.5 nanograms per cubic meter over a two-month period.
Update 9/14/17: SCAQMD discovered elevated levels of hexavalent chromium in southern Paramount in Spring 2017. However, these levels are not at 350 times the typical level. SCAQMD is currently investigating the source of these levels and will implement similar rules and procedures to lower emissions.