Hurricane Katrina Aftermath (and other stuff I find interesting)

The precise extent of the contamination is not yet known. Louisiana's chief environmental officer today said there is no evidence yet that the New Orleans waterways are a toxic wasteland. He acknowledged the presence of fecal matter, fuel, oil and other contaminants, but said testing had not detected traces of truly toxic substances like pesticides and metals. A full analysis is expected in two days.
Nonetheless, officials are advising people in the region to avoid all contact with the trash-laden, brown water flowing through the city.

http://abcnews.go.com/Health/story?id=1101220