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.~~~ <br />Reference Toxicity Data Chart(s) <br />Daphnia magna <br />LC 50 Survival <br />NaCI Reftox <br />2004 - 2006 <br />.~ <br />z:,~. <br />Jul-04 <br />~. <br />4.90 <br />Aug-04 3.88 <br />Sep-04 3.79 <br />Oct-04 4.26 <br />Nov-04 4.49 <br />Dec-04 4.7G <br />Jan-OS 3.40 <br />Feb-OS 4.06 <br />Maz-OS 4.04 <br />Apr-OS 4.12 <br />May-OS 3.76 <br />Jun-OS 3.86 <br />Dec-06 4.55 <br />Feb-06 4.74 <br />Mat-06 5.25 <br />Apr06 4.74 <br />May-06 3.60 <br />6.50 <br />G.00 <br />~ 5.50 <br />~ 5.00 <br />4.50 <br />~ 4.00 <br />~ 3.50 <br />a 3.00 <br />2.50 <br />< v1 vt u'1 /1 X11 v1 N V1 v1 ~ N u1 d b ~ 'V V' <br />~ q o g o 0 0 0 0 0 o q o 0 0 0 0 0 0 <br />.~ <br />^~' ~n O z° fa ^w" ~ C ~ ~ ^C vai O Z q ~ w ~ C ~ <br />Mean <br />Staztdazd Deviation <br />. 2 Standazd Deviadons <br />3 Standard Deviations <br />Low Limit <br />High Limit <br />Coefficient of Variation <br />4.247 <br />0.519 <br />1.037 <br />1.556 <br />3.210 <br />5.284 <br />12.2% <br />9 <br />