Site environmental report for calendar year 1984

Technical Report · Wed May 01 04:00:00 EDT 1985

OSTI ID:5559254

Baker, S I

During CY-1984 there were no abnormal occurrences which had an impact on the facility and its operation. In CY-1984 8.3 km/sup 2/ (2045 acres) were sprayed with 2,4-D for controlling noxious weeds. In the past as much as 10 km/sup 2/ (2500 acres) were sprayed with 2,4-D. This year no 2,4-D was used in residential areas as was necessary last year. The maximum potential radiation exposure at the site boundary during CY-1984 (fence line assuming 24 hr/day occupancy) was only 0.8 mrem compared to 0.04 mrem last year and to an average exposure of 3 mrem during conventional magnet operations from 1978 to 1982. The dose of 0.8 mrem would correspond to 0.16% of the standard of 500 mrem for an individual who is not a radiation worker (Section 5). The maximum individual potential exposure to the general population would be essentially the same because the decrease in dose rate is small between the site boundary and the location of that individual. The total potential radiation exposure to the general off-site population from Fermilab operations during CY-1984 was 4.5 person-rem compared to less than 0.1 person-rem last year when the superconducting ring was being commissioned. The primary source of potential exposure was penetrating radiation from muons this year. All exposure was from external radiation, as was the case in the past. Thus, the 50 year dose commitment from operations in 1984 is expected to be the same as the exposure received in 1984. No airborne radioactivity was released across the site boundary in CY-1984 during accelerator operations because the Neutrino Area primary beam line was not receiving protons. No tritiated water was evaporated as a means of disposal in CY-1984. The off-site release of tritium in surface water totaled approximately 150 mCi, about 23% of last year's release.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (USA)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 5559254
• Report Number(s): FNAL-85/32; ON: DE85012743
• Country of Publication: United States
• Language: English

Related Subjects

500300 -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
510302* -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- Terrestrial Ecosystems & Food Chains-- (-1987)
520302 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- Aquatic Ecosystems & Food Chains-- (-1987)
54 ENVIRONMENTAL SCIENCES
ACCELERATORS
CYCLIC ACCELERATORS
DOSES
ENVIRONMENT
ENVIRONMENTAL EFFECTS
FERMILAB ACCELERATOR
MONITORING
RADIATION DOSES
RADIATION MONITORING
RADIOACTIVITY
SYNCHROTRONS