Subject: Accumulated risks from Dioxin in Midland residents may have already reached unacceptable levels
July 30, 1985


On July 30, 1985, EPA Region V Health Effects Specialist, Dr. J. Milton Clark wrote a memo to Georgie A. Jones, Chief Superfund Implementation Group, and said, "For long-term residents residing near the Dow plant, accumulated risks from exposure to PCDD's and PCDF's via ambient air alone may have already reached unacceptable levels. Further complicating this risk picture would be consumption of fish from the Tittabawassee River. Exposure to PCDD's and PCDF's via consumption of garden vegetables (historically and currently) also needs to be determined."
" Therefore, an open question remains - if continued exposure to PCDD's and PCDF's via soil or air for certain subpopulations of Midland residents is acceptable."
" Some consideration must also be given to the already suggestive health data from Midland County which indicates an abnormally high rate of Soft-Tissue Sarcomas among women and an early 1970's rise in birth defects of compatible etiology with 2,3,7,8-TCDD."

Source: Diane Hebert

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