Document npMjM9wX2X97egvGOD9VejxzG

DOW CHEMICAL U.S.A. March 16, 1978 LOUISIANA DIVISION PLAQUEMINE. LOUISIANA 70764 S04 369-8000 Henry 3ell, Plaquemine Jim Conder, Midland Dr. Currier, Plaquemine G. w. Daigre, Plaquemine Bob Gallant, Plaquemine J. Kiggans, Plaquemine PERSONNEL SAMPLING RESULTS FROM NIOSH SURVEY FOR ETHYLENE OXIDE EXPOSURE MARCH 10, 1978 Dow Industrial Hygiene obtained duplicate personnel samples of those taken by KIOSK on March 10. Each employee sampled by KIOSK was also given a Dow pump and sampler to carry; thus, exposure levels measured should be identical* Eight different employees were measured, each for a period of six (6) hours during the day shift. The six hour time weighted averages obtained by Dow are listed below. The exposure ranees are similar to the 1977 data presented KIOSK on March 9, 1978. Cob Classification 6 Hr. TWA March 10 8 hr. TWA 1977 Level Given KIOSK Loading OT #1 Leading OT 2 Outside OT Outside OS Lab OTT S.O.T, S.S, Engineer 5,67 ppm(v) 0.59 0.53 <0.25* <0.25 0.61 <0.25 <0.25 E,0. 2.2 ppm(v) E.0 2.2 <0.20 0,3-1.2 KIOSK data should be available about four weeks after sampling date. Charlie Halphen Industrial Hygiene cc AN OPERATING UNIT OF THE EOW CHE L*. CAL COV^i-NY TABLE 2 PERSONAL AIR MONITORING DATA POR ETHYLENE OXIDE DOW PLAQUEMINE, LOUISIANA MARCH 10, 1978 5 TITLE ift Supervisor JT gineer b on wading OTT M fading OTT *2 SAMPLE VOL. (L) 26.5 79.5 78.0 59.5 81.0 29.4 42.0 78.0 E.O.. TWA (ppm) N.D.* N.D. O.36 N.D. O.89 1.13 >62.0** 0.43 55 non-detectable, sample results reported below the analytical limit \\D. - of C.01 mg per tube. rI ^A>>le result reported on back-up tube indicating probably sample breakthrough. CxcE t-T fc 7" Crt.p') -- 0.4- -9- oo a n?pro CONf" IDfNT T At ,^ \ I'