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DEPARTMENT OF HEALTR HUMAN SERVICES Public Health Service

 

3'

RN45 C,

Centers for Disease Control
and Prevention (CDC)
Atlanta, GA 30341?3724

March 6, 2m 3

Domenic A. Baldini

Chicl?. loint Services Records
Research Center Army
Records Management and.
Doolassi?cation Agency

770i "l??olcgraph Road

Room Kingman Building,

Alexandria, Virginia 223 5?3860

Dear Mr. Baldini:

On January 25 2012, the Aganoy for Toxic: Substances and Disease Registry (ATSDR) sent the
attached lottar to Wesley T. Carter, USAF Retired. Maior Canter had contacted seeking
an opinion about his potential exposure "to 2.318 tetrachlorodibenzo-odioxin while
piloting ($123 aircraii From l972?l982. The letter represented the opinion of and our
subject matter experts.

The lottor to Major Carter included several important findings. Information contained
within paronthosas have boon added for explanation:

- ATSDR calculated an average value of 6.36 ng 00 om?? for the three C-123
interior wipe samples collected on November 20, 1994. This calculation was based on
information from a consultative letter from Capt Wade. Weisman Ronaid Porter (see
footnote 3 in correspondence to Major Carter).

0 This value is 182 times higher than the screening value established by the United States
Army Cantor for Health Promotioo and Preventive Medicine Technical Guide 3 l2.
(see footnote 2. in correspondence to Major Carter.) [Levels below a screening value are
often considered acceptable. Levels above the screening value are o?on considered
unacceptable because of an associated health risk]

a, ATSDR pointed out that the average value ol?tho throo wipo samples represented a 260%
risk above the screening value established by the Department ot?the
Anny.

ATSDR stated that tho office worker scenario used in 'l?ochnical Guide 312 likely
underestimates the daily exposures of? Air Force flight personnel inside confined
contaminated aircraft but that this depends upon exposed skin surface: area, duration ol?
exposure, hand washing, and food intake [as well as airborne dust].

page 2 Domenic A. Balclini

- stated that TCDD levels en~boatd contaminated planes were likely hi9 er in
1972498281213 in 1994 when samples were taken.

ATSDR stated that it could not exclude inhalation [or ingestion] exposures to 
while working on contaminated aircraft.

0 Based upon the available information, concluded that aircrew Operating in this,
and similar? environments were expnsed to 'qu13[).

I hope this is useful. Please eentact Thomas Sinks? Phil, Deputy Director at 770
ifyon. have any questiens\M'f i, ?a 

 

JV.) l?orgiekahJ);
Ditee'ton National Center, and
Environmental Health and
Agency ?lbr "l??exie Substances and
Disease Registry

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