Seasonal pesticide concentrations: Assiniboine River 2011

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

Seasonal Pesticide Concentrations Assiniboine River 2011
Date MCPA Median Concentrations (ng/L) Clopyralid Median
Concentrations (ng/L)
2,4-D Median
Concentrations (ng/L)
2011-02-08 33.3 23.9 63.5
2011-03-16 27.5 19.2 48.3
2011-04-19 20.7 17.4 106
2011-05-17 8.35 11.9 27.9
2011-06-14 17.1 15 33.1
2011-07-12 103 31.4 54.8
2011-08-23 51.5 22 92.6
2011-09-20 42.1 21.2 47.4
2011-10-18 21.4 20.2 48.1
2011-11-15 15.7 19 30.5
2011-12-13 11.1 28.9 19.8
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