The adequate disposal of hydrofluoric acid containing tars poses many problems.

v. a y g J !.

1975 Using a preconcentiation method and NMR, Guy and Taves report presence of organic fluorine compounds in blood bank blood from around the country (average concentration about 0.03 ppm OF, which corresponds to about 45 ppb PFOS).

27-CV-10-28862 CONFIDENTIAL Filed in Fourth Judicial District Court 11/17/2017 6:15 PM Hennepin County, MN Transcript of Michael Santoro 10 (3 7 to 4 0 ) Conducted on September 15, 2017 37 39 1 baseline operatingtemperatures are 1100 F, 590 C inthe 1 Q.

be o : A.

interoffice Correspondence August 20, 1975 Siifiiec!

RI KER LABORATORI ES.

CHEMI CAL COM CEW TRATES A S U B S ID IA R Y OF B AKER IN D U S T R IE S , INC.

27-CV-10-28862 Filed in Fourth Judicial Dist ict Court 11/17/2017 6:25 PM Hennepin Co inty, MN ORGANIC FLUORINE COMPOUNDS IN BLOOD CHRONOLOGY AU6UST 22, 1975 AUGUST 25, 1975 SEPTEMBER 17-21, 1975 * DR.

27-CV-10-28862 Table 2.

Interoffice Correspondence ubj ec t Fluorochemicals in Blood August 9, 1977 IS H.