MN Water Science Center: Pesticides in rain near Crystal Springs, Minnesota, May through September 1993.

USGS Water Science Center, Minnesota

Table 10.--Pesticides in rain near Crystal Springs, Minnesota, May through September 1993.

[Total number of samples is 15; 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
Alachlor	Lasso	67	0.81	0.03	May 25
Atrazine	Aatrex	67	.29	.02	July 13
Metolachlor	Dual	60	.37	.02	May 25
Triallate	Far-Go	40	.03	<.01	July 20
EPTC	Eradicane	33	.87	<.01	May 25
Ethalfluralin	Sonalan	27	.05	<.01	July 20
Cyanazine	Bladex	20	.11	<.02	June 1
Pendimethalin	Prowl	13	.06	<.01	June 1
Metribuzin	Sencor	7	.01	<.01	June 16
Propanil	Erban	7	.01	<.01	July 1
Propazine	Milogard	7	.01	<.01	May 25
Simazine	Princep	7	.02	<.01	July 20
Terbacil	Sinbar	7	.19	<.02	May 11
Trifluralin	Treflan	7	.03	<.01	June 1
Benfluralin	Benefin	0	<.01	--	--
Butylate	Sutan+	0	<.01	--	--
Pebulate	Tillam	0	<.01	--	--
Prometon	Pramitol	0	<.01	--	--
Propachlor	Ramrod	0	<.01	--	--
Tebuthiuron	Spike	0	<.01	--	--

Insecticides
Methyl parathion	Penncap-M	20	.07	<.02	August 11
Ethoprop	Mocap	13	.03	<.01	June 16
Malathion	Cythion	7	.07	<.02	July 7
Azinphos-methyl	Guthion	0	<.02	--	--
Chlorpyrifos	Lorsban	0	<.01	--	--
Diazinon	Diazinon	0	<.01	--	--
Lindane	Lindane	0	<.02	--	--
Permethrin	Ambush	0	<.01	--	--
Phorate	Thimet	0	<.01	--	--
Terbufos	Counter	0	<.01	--	--

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