panda
Toxic waste sites
Endangered ecosystems
Hazardous waste sites
États
Natural areas
United states, environmental conditions
Habitat (Ecology)
Biotic communities
U.S. states
Écologie
States
Registers
Conservation
Gestion
More than 35,000 contaminated sites have been identified since the Environmental Protection Act was passed in 1969. Exactly where are these human-made danger zones? Which compounds are creating the problems, and what kinds of threats do they pose? What's being done to correct the problem? Toxic Was…
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