Approved by Linnea Wahl
Revised 12/1250.1 Policy
50.2 Scope
50.3 Applicability
50.4 Exceptions
50.5 Roles and Responsibilities
50.6 Definitions
50.7 Required Work ProcessWork Process A. Environmental Radiological Protection Program
50.8 Source Requirements
50.9 Reference Documents
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Berkeley Lab has an established and implemented program to protect the public and the environment against undue risk from radiation associated with radiological activities. This program is tailored to Berkeley Lab activities and uses a graded approach. The program ensures compliance with public dose limits and ensures that potential radiation exposure to the public and environment from Berkeley Lab activities is as low as reasonably achievable (ALARA).
This policy applies to:
Berkeley Lab managers, supervisors, employees, and affiliates who plan to work with or support work with radiation-generating equipment or radioactive materials
None
|
Responsibilities |
Principal Investigators and Supervisors |
|
Employees |
|
Environmental Services Group |
|
Term |
Definition |
As low as reasonably achievable (ALARA) |
“An approach to radiation protection to manage and control releases of radioactive material to the environment and exposure to the work force and to members of the public so that the levels are as low as is reasonably achievable, taking into account societal, environmental, technical, economic, and public policy considerations; ALARA is not a specific release or dose limit but a process that has the goal of optimizing control and managing releases of radioactive material to the environment and doses so that they are as far below applicable limits as reasonably achievable” (from DOE O 458.1) |
Collective dose |
“The sum of the total effective dose to all persons in a specified population received in a specified period of time; collective dose is expressed in units of person-rem (or person-sievert)” (from DOE O 458.1) |
Effluent |
Any treated or untreated liquid discharge from Berkeley Lab or from a Laboratory facility |
Emission |
Any filtered or unfiltered substance released to the air from Berkeley Lab or from a Laboratory facility |
Environmental surveillance |
“The collection and analysis of samples of liquid and gaseous effluents or measurements of liquid and gaseous effluents performed to characterize and quantify radiological contaminants and process stream characteristics, assess exposures of members of the public, and demonstrate compliance with applicable standards” (from DOE O 458.1) |
Equivalent dose |
“The product of average absorbed dose in rad (or gray) in a tissue or organ and a radiation weighting factor. For external dose, the equivalent dose to the whole body is assessed at a depth of 1 cm in tissue, the equivalent dose to the lens of the eye is assessed at a depth of 0.3 cm in tissue; and the equivalent dose to the extremity and skin is assessed at a depth of 0.007 cm in tissue; equivalent dose is expressed in units of rem (or sievert)” (from DOE O 458.1) |
Radionuclide |
A natural or man-made atom that spontaneously undergoes radioactive decay |
Technologically enhanced naturally occurring radioactive material (TENORM) |
“Any naturally occurring radioactive material whose radionuclide concentrations or potential for human exposure has been increased above levels encountered in the natural state by human activities” (from DOE O 458.1) |
Total effective dose |
Sum of doses from external and internal sources of radiation; total effective dose is expressed in units of rem (or sievert) |
United States Environmental Protection Agency (EPA) |
A federal agency responsible for enforcing environmental laws, including Clear Air Act regulations for radionuclide air emissions |
Unplanned release |
A release of radionuclides to the environment that was not anticipated |
Document number |
Title |
Type |
Multiple |
Environmental Protection |
Program |
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