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Weed Killers By The Glass
September 1, 1995

Weed Killers By The Glass: Table7

Table 7. Atrazine was the most frequently detected contaminant.

 

Herbicide # Communities Detecting % of Communities Detecting
 
Atrazine 28 97%
Cyanazine 25 86%
Metolachlor 19 66%
Acetochlor 15 52%
Atrazine Metabolites 12 41%
Alachlor 10 34%
Simazine 4 14%
Metribuzin 2 7%
Desisopropylatrazine 2 7%

Cyanazine and atrazine testing was done using immunoassay and Gas Chromatogrophy (GC) sampling. Other pesticides were analyzed using only GC sampling.