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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Environ Int. 2019 Jul 13;131:104969. doi: 10.1016/j.envint.2019.104969

FIGURE 2. Description of the prioritized chemicals: BHT, DEA, PCE, and MDEA.

FIGURE 2.

(A) The chemical structures of the compounds tested in this study: 2,2’-methyliminodiethanol (MDEA), diethanolamine (DEA), tetrachloroethylene (PCE), and 2,6-di-tert-butyl-p-cresol (BHT). (B) Description of the sources, routes, and limits of exposure for MDEA, DEA, PCE, and BHT. Exposure limits are determined as the 8-hr permissible exposure limit with time-weighted average.