Building a Great Lakes toxic legacy
Millions of dollars have been spent cleaning historic Great Lakes contamination. Millions more are sought. Does it make sense to clean the lakes before the pollution sources are eliminated?
A look at toxic fallout.
An ill wind blows no good
As contaminated sediment is cleaned up in the Great Lakes, persistent pollutants continue to blow in, threatening again to poison soil and harm human health. That has some experts questioning if it’s worthwhile to spend money to remove toxic sediments if they will once more become contaminated in a matter of years.
Great Lakes or great sink? Pollutants produced abroad and still circulating at home threaten water quality
Indian cement plants, Russian incinerators and Chinese farms send large amounts of persistent pollutants to the Great Lakes. Climate change may further complicate the issue.
Toxaphene – A stubborn pollutant persists
The largest, deepest and coldest Great Lake holds another distinction, – it has the highest levels of toxaphene found in the region and possibly anywhere in the world. Since federal bans on persistent pollutants in the 1970s and 80s, most chemical concentrations have declined in the Great Lakes.
Great Lakes fish eaters less contaminated than a decade ago
Anglers who ate Great Lakes fish have 33 percent fewer PCBs and 43 percent less DDT in their bodies than they did a decade ago, largely because they changed their diet and switched to less contaminated fish, according to a study by Wisconsin researchers.
Other toxic contamination stories from Echo and elsewhere.