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USGS Fact Sheet 067-97:
Pesticides in Selected Small Streams
in the Puget Sound Basin, 1987-1995

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Commonly used pesticides
in the Puget Sound Basin 


[Data from Tetra Tech, 1988; some data from Farm Chemicals Handbook,
1994, and Davis, 1993; I = Insecticide; Fu = Fungicide; H = Herbicide;
Ac = Acaricide (kills mites, ticks); M = Molluscicide (kills snails);
SS = Soil Sterilant; Y, yes; N, no; lb/yr, pounds per year; --, not
analyzed; >, less than]


		    Estimated
        	    amount
Pesticide	    applied				Detected in
(Example	    (thousands		Pesticide	surface water,
trade name)         of lbs/yr)		use		bed sediment?
________________________________________________________________________

                        Primarily Nonurban
        		-------------------

2,4-D  	      	          >200		H		Y, N

Prometon (Pramitol)    101-200		H,SS		Y, N

Diazinon	        51-100		I	      	Y, Y

Simazine (Princep)      51-100		H	      	Y, N

Dicamba (Banvel)        51-100		H	      	Y, Y

Trichlopyr (Garlon)     51-100		H	      	Y, N

Atrazine (AAtrex)	21-50		H	      	Y, N

Bromacil (Hyvar)	21-50		H	      	Y, N

Carbaryl (Sevin)	21-50		I	      	N, N

Diuron (Karmex)		21-50		H	      	Y, N

Tebuthiuron (Spike)     21-50		H	      	N, N



                        Mixed Urban and Agriculture
        	        ---------------------------

Malathion  	      	   >200		I, Ac	      	Y, N

Methyl bromide(Celfume) 101-200		I, Ac, Fu      	--, --

Sulfuryl fluoride	101-200		I, Ac	      	--, --
 (Vikane)

Chlorpyrifos (Lorsban)   21-50		I	      	N, N

Glyphosate (Roundup) 	 21-50		H	      	Y, N

Metaldehyde (Metason)    21-50		M	      	--, --

Sulfur (Sulphotox)	 21-50		Fu	      	--, --

Puget Sound Basin NAWQA home page is <http://wa.water.usgs.gov/projects/pugt/>
This page is http:// wa.water.usgs.gov /pubs/fs/fs067/pestuse.html
Last modified: Mon Jun 9 17:25:40 1997
If you have any questions or comments about this document, contact <nawqa_pugt_wa@usgs.gov>.