MN Water Science Center: Pesticides in rain near Park Rapids, Minnesota, April through September 1994.

USGS Water Science Center, Minnesota

Table 19.--Pesticides in rain near Park Rapids, Minnesota, April through September 1994.

[Total number of samples is 17; mg/L, micrograms per liter; --, not detected]
Common name	Brand name	Percent detections	Maximum concentration ( mg/L)	Median concentration ( mg/L)	Date of maximum concentration
Herbicides
Atrazine	Aatrex	94	1.1	0.13	July 5
Alachlor	Lasso	88	.57	.10	August 9
Cyanazine	Bladex	71	6.0	.23	May 24
Metribuzin	Sencor	71	.12	.03	June 14
Metolachlor	Dual	47	.58	.05	May 24
Simazine	Princep	41	.09	.01	August 9
EPTC	Eradicane	35	.05	.03	May 3
Acetochlor	Harness+	24	.11	.01	August 9
Prometon	Pramitol	24	.08	.04	August 9
Ethalfluralin	Sonalan	18	.05	.04	May 31
Propazine	Milogard	18	.02	.01	August 9
Pendimethalin	Prowl	12	.02	.01	August 9
Propachlor	Ramrod	12	.01	.01	May 31
Pebulate	Tillam	6	.01	--	June 14
Propanil	Erban	6	.02	--	May 24
Trifluralin	Treflan	6	.02	--	June 14
Benfluralin	Benefin	0	<.01	--	--
Butylate	Sutan+	0	<.01	--	--
Tebuthiuron	Spike	0	<.01	--	--
Terbacil	Sinbar	0	<.02	--	--
Triallate	Far-Go	0	<.01	--	--

Insecticides
Azinphos-methyl	Guthion	53	.38	.08	May 10
Methyl parathion	Penncap-M	53	.24	.04	June 14
Fonofos	Dyfonate	35	.04	.01	June 14
Terbufos	Counter	29	.03	.01	May 31
Lindane	Lindane	24	.15	.08	August 9
Malathion	Cythion	18	.04	.02	June 14
Chlorpyrifos	Lorsban	18	.05	.03	August 9
Diazinon	Diazinon	0	<.01	--	--
Ethoprop	Mocap	0	<.01	--	--
Permethrin	Ambush	0	<.01	--	--
Phorate	Thimet	0	<.01	--	--

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U.S. Department of the Interior \| U.S. Geological Survey URL: http://mn.water.usgs.gov/pubs/atmospheric/table19.html Page Contact Information: Webmaster Page Last Modified: Tuesday, 13-Mar-2007 17:09:50 EDT