Love Canal was a residential area in Niagara Falls, New York, that was built on top of a former chemical waste dump. In the 1980s, the site was declared a Superfund site and the residents were evacuated.

Dioxin is a highly toxic chemical that is produced as a byproduct of certain industrial processes. It is a known carcinogen and can cause a variety of health problems, including cancer, birth defects, and immune system disorders.

Approximately 2,800 people were evacuated from the Love Canal site in the 1980s.

The cost of the Love Canal cleanup was approximately $400 million.

The primary contaminant at the Times Beach site is dioxin.

Approximately 600 people were evacuated from the Times Beach site in the 1980s.

The cost of the Times Beach cleanup was approximately $90 million.

The primary contaminant at the Three Mile Island site is radioactive isotopes.

The Three Mile Island accident was caused by a mechanical failure in a cooling system.

Approximately 20,000 people were evacuated from the Three Mile Island area in the days following the accident.

The cost of the Three Mile Island cleanup was approximately $2 billion.

The primary contaminant at the Chernobyl site is radioactive isotopes.

The Chernobyl accident was caused by a human error during a safety test.

Approximately 300,000 people were evacuated from the Chernobyl area in the days following the accident.

The cost of the Chernobyl cleanup was approximately $20 billion.