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UIowa study measures levels of PCBs flowing from Indiana canal to air and water http://apocadocs.com/s.pl?1267108935
"We have analyzed PCBs in surficial sediment, water, suspended particles and air and examined the potential for chemical movement in the harbor system," Hornbuckle said. "We have shown that the system is currently a significant source of PCBs to the air and to Lake Michigan, even under quiescent conditions."... "We were not surprised to discover that PCBs were continuously emitted from the sediments of the Indiana Harbor and Ship Canal. However, without our study, there was no way to determine how much was being released. Now we better understand the magnitude of the PCB release to Lake Michigan and to the air over the harbor and canal," Hornbuckle said. "We have found that this tributary releases more PCBs to Lake Michigan than any other known direct discharge of PCBs to the lake."
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[Read more stories about:
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