Seasonal pesticide concentrations: Red River 2011

This table gives median monthly concentrations of clopyralid, dicamba, MCPA, MCPP, 2,4-D and metolachlor (column headings) for 2011 (row headings).

Seasonal Pesticide Concentrations Red River 2011
Date Clopyralid Median
Concentrations (ng/L)
Dicamba Median
Concentrations (ng/L)
MCPA Median
Concentrations (ng/L)
MCPP Median
Concentrations (ng/L)
2,4-D Median
Concentrations (ng/L)
Metolachlor Median
Concentrations (ng/L)
2011-01-04 7.45 2.81 2.55 1.02 16.8 1.73
2011-02-07 8.35 0.89 1.32 1.02 19.5 1.73
2011-03-07 7.09 0.89 2.11 1.02 19.5 1.73
2011-04-04 18.7 4.44 9.64 6.69 41.8 5.63
2011-05-02 11.9 7.01 4.87 1.02 52.1 8.84
2011-06-06 19.2 25.6 14.8 14.3 124 45.3
2011-07-04 223 125 254 8.13 140 287
2011-08-08 57.4 25.2 30.4 16.6 153 34
2011-09-06 68.4 3.21 7.46 2.46 39.7 12.9
2011-10-11 29.7 3.56 3.01 2.35   8.32
2011-11-07         19.6 1.73
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