HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Google Scholar Articles by Vogel, J. R. Articles by Capel, P. D. PubMed Articles by Vogel, J. R. Articles by Capel, P. D. Agricola Articles by Vogel, J. R. Articles by Capel, P. D. Related Collections Pesticides Agricultural Pesticides Air Pollution

Pesticides in Rain in Four Agricultural Watersheds in the United States

^a U.S. Geological Survey, 5231 S. 19th St., Lincoln, NE 68512
^b U.S. Geological Survey, Placer Hall–6000 J St., Sacramento, CA 95819
^c U.S. Geological Survey, 122 CivEng. Bldg., 500 Pillsbury Dr. SE, Minneapolis, MN 55455

View larger version (31K): [in this window] [in a new window]   Fig. 1. Atrazine, metolachlor, and simazine concentrations in weekly composite rain samples, plus weekly rainfall amounts, at the rain sampling site in Maryland during the growing season in 2003 and 2004.

View larger version (29K): [in this window] [in a new window]   Fig. 2. Atrazine, acetochlor, and metolachlor concentrations in weekly composite rain samples, plus weekly rainfall amounts, at the rain sampling site in Indiana during the growing season in 2003 and 2004.

View larger version (24K): [in this window] [in a new window]   Fig. 3. Atrazine and acetochlor concentrations in weekly composite rain samples, plus weekly rainfall amounts, at the rain sampling site in Nebraska during the growing season in 2003 and 2004.

View larger version (28K): [in this window] [in a new window]   Fig. 4. Trifluralin and dacthal concentrations in weekly composite rain samples, plus weekly rainfall amounts, at the rain sampling site in Nebraska during the growing season in 2003 and 2004.

View larger version (26K): [in this window] [in a new window]   Fig. 5. Alachlor and metolachlor concentrations in weekly composite rain samples, plus weekly rainfall amounts, at the rain sampling site in Nebraska during the growing season in 2003 and 2004.

View larger version (34K): [in this window] [in a new window]   Fig. 6. Iprodione and myclobutanil concentrations in rain samples collected from the upper, middle, and lower sampling sites in California during 2003 and 2004.

View larger version (24K): [in this window] [in a new window]   Fig. 7. Deethylatrazine fraction in weekly composite rain samples and cumulative rainfall at rain sampling sites in Maryland, Indiana, and Nebraska during the growing season in 2003 and 2004.

View larger version (40K): [in this window] [in a new window]   Fig. 8. Degradate fractions in rain samples and rainfall amounts during selected time periods for (a) chlorpyrifos oxygen analog (OA) at the Indiana site in 2003, (b) chlorpyrifos OA at the California sites in late 2003 and early 2004, (c) malathion OA at the Indiana site in 2003, (d) malathion OA at the Indiana site in 2004, (e) diazinon OA at the California sites in late 2003 and early 2004, and (f) 1-naphthol at the California sites in December 2003.

View larger version (15K): [in this window] [in a new window]   Fig. 9. Total seasonal mass deposition of herbicides, insecticides, and fungicides in rain at the Maryland, Indiana, Nebraska, and California sites in 2003 and 2004.

View larger version (20K): [in this window] [in a new window]   Fig. 10. Total wet deposition of pesticides per week at the Maryland, Indiana, and Nebraska sampling sites, and total per storm event at California sites, during 2003 and 2004.