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"Code of Massachusetts regulations, 2009" - Page 1791
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... chronic LOEC 10 07782-49-2 5 CCC 30 07440-22-4 0.03 CMC ( FW ) / 10 40 Styrene | TCDD , 2,3,7,8- 00100-42-5 250 01746-01-6 ) acute LC50 / 10 20 0.000038 chronicLOEC 50 Tetrachloroethune , 1,1,1,2- 00630-20-6 2000 acute LC50 / 10 10 ...