Mercury Contamination NPR's David Welna reports on mercury contamination in scores of suburban Chicago homes. Government officials are pressuring the Nicor Gas company to speed up its inspections of more homes that could be contaminated. The mercury was apparently spilled when the company and its subcontractors removed old-fashioned mercury-filled gas pressure regulators.

Mercury Contamination

Mercury Contamination

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NPR's David Welna reports on mercury contamination in scores of suburban Chicago homes. Government officials are pressuring the Nicor Gas company to speed up its inspections of more homes that could be contaminated. The mercury was apparently spilled when the company and its subcontractors removed old-fashioned mercury-filled gas pressure regulators.