National dioxin study
Subtitle: tiers 3,5,6,and 7.
Contributors: United States. Environmental Protection Agency. Office of Water Regulations and Standards.
Publisher: U.S. Environmental Protection Agency, Office of Water Regulations and Standards
Published: 1987
Place of publication: Washington, D.C
Language: eng
Subjects: Dioxins -- Environmental aspects -- United States.
Notes: "EPA 440/4-87-003"

"February 1987."

Includes bibliographies.