North American Green is leading the erosion control
Population deposited on swatch 1 37 x 106 cells/ml 2 Whatman No 40 filter paper TABLE XI Results Aerosol Test ISO!BAC Control of Escherichia coli in Saline1 Count/ml (X103 at Each Dwell Interval) Media No Repl 0 1/4 hour frac12 hour 1 hour 2 hour 3 hour Control2 1 2 3 Av 136 114 122 124 110 119 140 123 103 92 112 102 115 122 108 115 108 102 124 111 123 107 98 109 ISO!BAC Level A 1 2 3 Av
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