Reconnaissance data for selected herbicides, two atrazine metabolites, and nitrate in surface water of the Midwestern United States, 1989-90
By: by Elisabeth A. Scribner ... [et al.].
Contributors: Scribner, Elisabeth A.; Geological Survey (U.S.)
Series: U.S. Geological Survey open-file report -- 93-457.; U.S. Geological Survey open-file report -- 93-457.
Publisher: U.S. Geological Survey; U.S. Geological Survey, Books and Open-File Reports Section [distributor]
Published: 1993
Place of publication: Lawrence, Kan; Denver, Colo
Language: eng
Number of pages: 77
Subjects: Water quality -- Middle West.; Herbicides -- Environmental aspects -- Middle West.
Notes: Cover title.

Chiefly tables.

Includes bibliographical references (p. 17-22).