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"Code of Massachusetts regulations, 2010" - Page 1791
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... chronic LOEC 10 Tetrachloroethene 00127-18-4 1100 chronic LOEC 10 Thallium 07440-28-0 110 chronic 20 Toluene 00108-88-3 140 acute EC50 / 10 20 Trichlorobenzenc , 1,2,4- 00120-82-1 340 chronic LOEC 20 Trichloroethane , 1,1,1 ...