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

USGS Water Science Center, Minnesota

Table 14.--Pesticides in rain near Princeton, Minnesota, May through September 1993.

[Total number of samples is 10; 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	70	0.22	0.04	June 15
Atrazine	Aatrex	70	2.9	.04	June 25
Metolachlor	Dual	60	.31	.02	June 15
EPTC	Eradicane	50	.13	.01	June 15
Ethalfluralin	Sonalan	50	.08	<.01	June 25
Metribuzin	Sencor	50	.03	<.01	June 25
Pendimethalin	Prowl	40	.05	<.01	June 25
Cyanazine	Bladex	30	.29	<.02	June 15
Simazine	Princep	30	1.3	<.01	June 15
Triallate	Far-Go	30	.06	<.01	August 5
Propanil	Erban	20	.02	<.01	June 25
Propazine	Milogard	20	.06	<.01	June 15
Terbacil	Sinbar	20	.03	<.02	August 5
Propachlor	Ramrod	10	.05	<.01	May 31
Trifluralin	Treflan	10	.03	<.01	July 14
Benfluralin	Benefin	0	<.01	--	--
Butylate	Sutan+	0	<.01	--	--
Pebulate	Tillam	0	<.01	--	--
Prometon	Pramitol	0	<.01	--	--
Tebuthiuron	Spike	0	<.01	--	--

Insecticides
Methyl parathion	Penncap-M	50	.15	.03	June 15
Chlorpyrifos	Lorsban	30	.03	<.01	May 31
Terbufos	Counter	30	.02	<.01	June 25
Malathion	Cythion	10	.10	<.02	July 29
Azinphos-methyl	Guthion	0	<.02	--	--
Diazinon	Diazinon	0	<.01	--	--
Ethoprop	Mocap	0	<.01	--	--
Lindane	Lindane	0	<.02	--	--
Permethrin	Ambush	0	<.01	--	--
Phorate	Thimet	0	<.01	--	--

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