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

USGS Water Science Center, Minnesota

Table 17.--Pesticides in rain near Lamberton, Minnesota, April through September 1994.

[Total number of samples is 19; 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	95	2.8	0.11	June 7
Alachlor	Lasso	84	.96	.11	June 7
Cyanazine	Bladex	84	19.0	.09	May 24
Acetochlor	Harness+	68	.07	.03	June 7
Metribuzin	Sencor	68	.13	.04	July 5
EPTC	Eradicane	47	.22	.04	April 26
Metolachlor	Dual	47	.70	.05	June 7
Propazine	Milogard	37	.06	.02	June 7
Pendimethalin	Prowl	37	.34	.02	June 7
Prometon	Pramitol	37	.08	.04	September 27
Simazine	Princep	37	.08	.02	July 5
Propachlor	Ramrod	26	.51	.11	June 7
Propanil	Erban	21	.04	.02	June 7
Trifluralin	Treflan	21	.21	.03	June 7
Terbacil	Sinbar	11	.07	.04	July 5
Ethalfluralin	Sonalan	11	.02	.02	September 27
Pebulate	Tillam	11	.03	.02	October 4
Tebuthiuron	Spike	11	.01	.01	June 14
Butylate	Sutan+	5	.01	--	June 21
Benfluralin	Benefin	0	<.01	--	--
Triallate	Far-Go	0	<.01	--	--

Insecticides
Methyl parathion	Penncap-M	84	.21	.06	July 5
Azinphos-methyl	Guthion	58	1.27	.02	July 5
Chlorpyrifos	Lorsban	42	.05	.02	August 9
Fonofos	Dyfonate	37	.33	.02	July 5
Terbufos	Counter	32	.05	.03	August 2
Lindane	Lindane	21	.19	.06	September 27
Malathion	Cythion	16	.19	.02	July 5
Permethrin	Ambush	5	.15	--	July 5
Diazinon	Diazinon	0	<.01	--	--
Ethoprop	Mocap	0	<.01	--	--
Phorate	Thimet	0	<.01	--	--

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