(MI) The Detroit News - Residents along contaminated canals near 10 Mile had hoped for years that there was an end in sight to their environmental nightmare. But new test results of the waters there show the problems might be worsening.

Federal, state and local officials have spent more than seven years and $10 million trying to rid the canals and groundwater of hazardous polychlorinated biphenyls, or PCBs. These man-made chemicals have been found to cause a range of illnesses, from acne and rashes to liver cancer. The federal government banned their use in the 1970s. More