An aerial radiological survey of the RMI facility and surrounding area, Ashtabula, Ohio: Date of survey, September 1985
An aerial radiological survey was conducted over a 75-square-kilometer (30-square-mile) area surrounding the RMI facility in Ashtabula, Ohio, during the period between September 4 and 13, 1985. The survey was conducted at an altitude of 46 meters (150 ft). A second, more detailed survey was also performed over the RMI facility. This survey was conducted at an altitude of 30 meters (100 ft) and covered an area of about 2.6 square kilometers (1 sq mi) centered over the facility. Over most of the survey area, exposure rates varied from about 8 to 11 microentgens per hour (..mu..R/h). Several areas of increased radioactivity were observed in addition to increased radioactivity over the RMI facility (exposure rates of up to 44 ..mu..R/h were detected). The increased radioactivity over the RMI facility was due to uranium; however, no evidence of uranium was found off site. A second site exhibiting increased radioactivity was located near a railroad siding. The anomalous radiation there was due primarily to elevated concentrations of radium. Ground samples from this location were found to contain 130,000 picocuries per gram (pCi/g) of radium-226. Two other regions of anomalous radiation were found on the shore of Lake Erie, near Pinney Dock. One of these sites contained elevated concentrations of potassium-40 (K-40). The spectrum from the second site indicated the source to be thorium. A fifth site was a facility located a few hundred meters east of the RMI plant. The spectrum from this site also indicated an increased amount of thorium. Finally, a sixth source was located in the eastern portion of the survey area. The spectrum from this site was found to be high in cesium-137 (Cs-137). 7 refs., 14 figs., 2 tabs.
- Research Organization:
- EG and G, Inc., Las Vegas, NV (USA). Remote Sensing Lab.
- DOE Contract Number:
- AC08-83NV10282
- OSTI ID:
- 6999764
- Report Number(s):
- EGG-10282-1107; ON: DE87004847
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
FUEL FABRICATION PLANTS
AERIAL SURVEYING
RADIOMETRIC SURVEYS
BISMUTH 214
CESIUM 137
COSMIC RADIATION
OHIO
RADIOACTIVE EFFLUENTS
RADIUM 226
THALLIUM 208
THORIUM
ACTINIDES
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
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BETA-MINUS DECAY RADIOISOTOPES
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CESIUM ISOTOPES
ELEMENTS
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FEDERAL REGION V
GEOPHYSICAL SURVEYS
HEAVY NUCLEI
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MINUTES LIVING RADIOISOTOPES
NORTH AMERICA
NUCLEAR FACILITIES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
RADIUM ISOTOPES
SURVEYS
THALLIUM ISOTOPES
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WASTES
YEARS LIVING RADIOISOTOPES
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