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References

"Low Level
Radiation Health Effects: Compiling the Data"

Revision 1
March 19, 1998
by Radiation, Science, and Health, Inc.,
Edited by J. Muckerheide

1.2.2
Ocupational

1.2.2.1
Nuclear Shipyard & Power Plant Workers

Professor Emeritus Dr. Zbigniew Jaworowski of the Central Laboratory for Radiological Protection, a Member of the UN Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), reports (1995b) on Canadian nuclear workers that:

"From several studies of people occupationally exposed to low radiation doses discussed in UNSCEAR (1994), data on mortality of 13,491 employees of the Atomic Energy of Canada Limited, (Gribbin et al., 1992), 5,504 were not exposed to radiation. The mean radiation dose of exposed persons was 49 mSv for men and 5.5 mSv for women. As shown in Table 6 the mortality due to all leukemias in the exposed group was only 32% of that in the general Canadian population. The observed mortality among employees of AECL from all cancers and from all noncancer diseases was also less than expected."

TABLE 6
Standardized Mortality Ratios (SMR) for Leukemias in 9997 Male Employees of Atomic Energy of Canada, Limited

	Non-exposed		Exposed
Cause of death	SMR	Observed/Expected	SMR	Observed/Expected
Lymphocytic leukemias	2.25	2 / 0.85	-	0 / 2.40
Myeloid leukemias	1.47	2 / 1.36	0.57	2 / 3.50
Other leukemias	0.72	1 / 1/40	0.28	1 / 3.59
All leukemias	1.37	5 / 3.64	0.32	3 / 9.50

Note: After Gribben et al. 1992

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06/13/06