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Due
to the number of reports, the following
are the categories we present them.
(Note: these reports were cited on Toxline
at Toxnet in April 2005) |
| Fluoride
(all reports except Canada) |
Fluoride:
CANADA |
Fluoride
in the
Nuclear Industry |
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Note:
many of the
Canadian communities
cited in these reports
border the US. |
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- |
Note:
this is a selected
list of reports. |
NTIS
Reports can be ordered by: phone at 1-800-553-NTIS (U.S.
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|
| Order
Number
Source
Number |
Date
Published / Title / Author & Affiliation / Sponsor Agency |
Abstract
/Keywords |
| NTIS/DE95007708
16p |
1995.
Application of the HGSYSTEM(sub 6) model to simulate atmospheric
dispersion of UF(sub 6) releases from uranium enrichment plants./ECONOMICS
Authors:
Goode WD
Bloom SG
Keith KD
Oak
Ridge K-25 Site, TN.
Supporting
Agency: Department of Energy,
Washington, DC. |
Uranium
hexafluoride is a dense, reactive gas used in Gaseous Diffusion
Plants (GDPs) to make uranium enriched in the U-235 isotope.
Large quantities of UF6 exist at the GDPs in the form of in-process
gas and as a solid in storage cylinders; smaller amounts exist
as hot liquid during transfer operations. If
liquid UF6 is released to the environment, it immediately flashes
to a solid and a dense gas that reacts rapidly with water vapor
in the air to form solid particles of uranyl fluoride and hydrogen
fluoride gas. Preliminary analyses were done on various
accidental release scenarios to determine which scenarios must
be considered in the safety analyses for the GDPS. These scenarios
included gas releases due to failure of process equipment and
liquid/gas releases resulting from a breach of transfer piping
from a cylinder. A major goal of the calculations was to estimate
the response time for mitigating actions in order to limit potential
off-site consequences of these postulated releases. The HG [abstract
truncated] |
NTIS/DE96620534
U.S.
Sales Only.
44p |
1995.
Toxicity levels to humans during acute exposure to hydrogen
fluoride - An update.
Author:
Halton DM
Atomic
Energy Control Board, Ottawa (Ontario). |
In March
1993, the Atomic Energy Control Board (AECB) commissioned and
update of a 1984 review on the acute toxicity of hydrogen fluoride
(HF). The study places particular emphasis
on the effects of inhalation of gaseous HF and is divided into
two main parts: a literature review and a lethal concentration
(LC) estimation. The literature review summarizes data
under four categories: animal studies, controlled human studies,
community exposure, and industrial exposure. Data in these areas
were critically reviewed for their relevance to lethal concentrations
at LC(sub LO), LC(sub 10) and LC(sub 50) levels that were derived
in the 1984 report. In the last ten years, only one relevant
animal study has been published. No new
controlled human studies were found but a community exposure
incident was reported. There were three new industrial/accidental
exposures reported since 1984. Evaluation of new data
does not change the lethal concentration estimates made in the
1984 report, but does indicate the ab [abstract truncated] |
NTIS/DE94018532
378p |
1994.
Remedial
Action Plan and Site Design for Stabilization of the Inactive
Uranium Mill Tailings Site, Maybell, Colorado. Appendixes
to Attachment 3: Appendix A, Hydrological services calculations:
Appendix B, Ground water quality by location, Final
report.
Jacobs
Engineering Group, Inc.,
Albuquerque, NM. |
This report
contains chemical analysis data for ground water for the following:
elements; cyanides; chlorides; dissolved organic carbon; fluorides;
silica; sulfates; sulfides; dissolved solids; nitrates; and
nitrites. (ERA citation 19:029430) Progress rept. Sponsored
by Department of Energy, Washington, DC. |
NTIS/DE94007972
19p |
1994.
Recent
results on the solubility of uranium and plutonium in Savannah
River Site waste supernate.
Authors:
Karraker DG
Hobbs DT
Westinghouse
Savannah River Co., Aiken, SC.
Sponsored
by Department of Energy, Washington,
DC. |
High-level
waste (HLW) is stored at the Savannah River Site (SRS) in a
highly alkaline condition to prevent corrosion of the carbon
steel storage tanks. Major components in the liquid phase include
nitrate, hydroxide, nitrite, aluminate, carbonate and sulfate.
Minor components include chloride,
fluoride, oxalate and phosphate.
The low solubility of uranium and plutonium in the HLW becomes
significant to nuclear safety analyses when the supernate is
evaporated to solids to conserve waste storage space and then
redissolved to process for permanent disposal. The study of
uranium and plutonium solubility in synthetic waste tank solutions
was initiated to define actinide behavior during waste removal
operations. Waste management '94, Tucson, AZ (United States),
27 Feb - 3 Mar 1994. |
NTIS/PB95-154803
243p |
1994.
Public
Health Assessment for Kerr-McGee Radiation Areas, West Chicago,
Dupage County, Illinois, Region 5.
Kress
Creek: CERCLIS No. ILD980823991;
Reed-Keppler
Park: CERCLIS No. ILD980824007;
Residental
Areas: CERCLIS No. ILD980824015;
Sewage
Treatment Plant: CERCLIS No. ILD980824031.
Illinois
State Dept. of Public Health, Springfield.
Sponsored
by Agency for Toxic Substances and Disease
Registry, Atlanta, GA. |
The Kerr-McGee
radiation areas consist of the Kerr-McGee Facility (Illinois
Department of Nuclear Safety jurisdiction) and National Priorities
List (NPL) areas in and around West Chicago, Illinois: (1) Reed-Keppler
Park, (2) the West Chicago Regional Wastewater Treatment Plant
(WTP), (3) residential areas, (4) Kress Creek, and (5) the West
Branch of the DuPage River (included with the WTP or Kress Creek
areas for the NPL listings). Chemicals
of concern include radon, radium, thorium, uranium, antimony,
arsenic, barium, boron, cadmium, fluoride,
lead, manganese, nickel, nitrate, selenium, silver, vanadium,
zinc, and possibly chromium and polychlorinated biphenyls (PCBs).
Exposure pathways include the inhalation of contaminated dust
and gases; the ingestion of dust, groundwater, soil, sediments,
and surface water; and dermal contact with dust, sediments,
soil, and surface water. Final rept.
See also PB90-106089. |
NTIS/DE95001091
38p |
1994.
LEAK:
A source term generator for evaluating release rates from
leaking vessels.
Author:
Clinton JH
Oak
Ridge National Lab., TN.
Sponsored
by Department of Energy, Washington,
DC. |
An interactive
computer code for estimating the rate of release of any one
of several materials from a leaking tank or broken pipe leading
from a tank is presented. It is generally assumed that the material
in the tank is liquid. Materials included in the data base are
acetonitrile, ammonia, carbon tetrachloride, chlorine, chlorine
trifluoride, fluorine, hydrogen
fluoride, nitric acid, nitrogen tetroxide, sodium hydroxide,
sulfur hexafluoride, sulfuric acid,
and uranium hexafluoride. Materials
that exist only as liquid and/or vapor over expected ranges
of temperature and pressure can easily be added to the data
base file. The Fortran source code for LEAK and the data file
are included with this report. (ERA citation 19:033861) |
NTIS/DE94008814
14p |
1993.
Calcining
process emission screening test for polychlorinated dibenzodioxins.
Author:
Hartenstein SD
Westinghouse
Idaho Nuclear Co., Inc., Idaho Falls.
Supporting
Agency: Department of Energy,
Washington, DC. |
Since 1963,
the Idaho Chemical Processing Plant (ICPP) at the Idaho National
Engineering Laboratory has been using fluidized-bed technology
to convert high-level radioactive liquid waste into a granular
solid for interim storage before eventual long-term storage.
The calcining process uses kerosene, oxygen, air and a cooling
jacket to maintain the temperature of the fluidized bed at approximately
400 C. The solids are moved to storage bins and the combustion
gases and fine particles are swept from the bed to an atmospheric
protection system. This atmospheric protection system includes
a cyclone to collect larger particles; a nitric acid scrubber
to cool gases and collect small particles; a condenser to reduce
water content; silica gel beds to adsorb volatile ruthenium,
water, and hydrocarbons; and a series of high efficiency particulate
air (HEPA) filters to collect minute particles. The
calcination process solidifies waste solutions containing molar
levels of acid, nitrate, fluoride,
zirconium, [abstract truncated] |
NTIS/DE93013210
5p |
1993.
Evaluation
of possible biological effects from exposure to gaseous SF6
breakdown products.
Authors:
Griffin GD
Sauers I
James DR
Oak
Ridge National Lab., TN.
Supporting
Agency: Department of Energy,
Washington, DC. |
A variety
of chemical byproducts including SOF(sub 2), SO(sub 2)F(sub
2), SF(sub 4), HF, SO(sub 2), etc. are produced at varying concentrations
by electrical arcs, sparks or corona discharge in SF(sub 6);
most of the byproducts are toxic to some degree. Using a cell
culture system, we have studied the toxicity of individual byproduct
gases, as well as electrically decomposed SF(sub 6). The toxic
potency of various byproducts can be compared, using this cellular
assay. The animal toxicological data for these gases, although
sparse, is also reviewed. The rationale for selection of various
byproduct gases as monitors for evaluating the hazard potential
of decomposed SF(sub 6) is discussed. (ERA citation 18:024925)
International symposium on high voltage engineering (8th), Yokohama
(Japan), 23-27 Aug 1993. |
NTIS/DE93006539
45p |
1992.
Principles
of measurement and system specifications for continuous vent
stack sampling.
Authors:
Sheller AJ
Saraceno AJ
Orlett MJ
Zonner LA
Martin
Marietta Energy Systems, Inc,. Piketon, OH.
Supporting
Agency: Department of Energy,
Washington, DC. |
Continuous
vent stack sampling for monitoring of radionuclide discharges
is required under the National Emission Standards for Hazardous
Air Pollutants (NESHAP) regulations of the Clean Air Act. At
Portsmouth, fourteen vent stacks with the potential for release
of radioactive discharges that could cause an effective dose
equivalent of greater than 0.1 mrem/yr. to the public have continuous
samplers installed to measure radioactive discharges. A continuous
sampler consists of a point source radionuclide extraction system
that includes an isokinetic probe, collection traps, a pump
and/or airjet, a sample flowmeter and a vent stack flow monitor.
The system continuously withdraws a representative
measured sample of stack gas which is passed through traps of
activated alumina that is subsequently analyzed by the Analytical
Services Laboratory for total uranium,
(sup 235)U, (sup 99)Tc and reactive fluoride. Systems
for continuous sampling must meet a number of criteria and specifications
to ensure qua [abstract truncated] |
NTIS/DE91017791
23p |
1991.
Method of processing alkaline fluoride liquid waste which
contains metal ions and oil.
Authors:
Nishimoto T
Sasaki T
Sugisawa M
Oak
Ridge Y-12 Plant, TN. |
Alkaline
fluoride liquid waste containing metal ions and oil is neutralized
by addition of hydrogen fluoride, and then oil is removed; metal
ions are absorbed and removed using chelate resin, and then
the liquid waste is separated into alkali and hydrogen fluoride,
and regenerated and recovered by an ion-exchange membrane electrodialyzer
which consists of bipolar membranes, anion exchange membranes
and cation exchange membranes. The hydrogen fluoride which is
added to the above liquid part of the recovered hydrogen fluoride.
2 figs. Translation of Japanese Patent Application No. 01-130783,
May 23, 1989.. |
NTIS/DE92004452
44p |
1991.
External quality control in ground-water sampling and analysis
at the Hanford Site.
Authors:
Hall SH
Juracich SP
Battelle
Pacific Northwest Labs., Richland, WA.
Supporting
Agency: Department of Energy,
Washington, DC. |
At the
US Department of Energy's Hanford Site, external Quality Control
(QC) for ground-water monitoring is extensive and has included
routine submittal of intra- and interlaboratory duplicate samples,
blind samples, and several kinds of blank samples. Examination
of the resulting QC data for nine of the constituents found
in ground water at the Hanford Site shows that the quality of
analysis has generally been within the expectations of precision
and accuracy that have been established by the US Environmental
Protection Agency (EPA). The constituents subjected to review
were nitrate, chromium, sodium, fluoride, carbon tetrachloride,
tritium, ammonium, trichloroethylene, and cyanide. Of
these, the fluoride measurements were notable exceptions and
were poor by EPA standards. The review has shown that
interlaboratory analysis of duplicate samples yields the most
useful QC data for evaluating laboratory performance in determining
commonly encountered constituents. For rarely encountered constituent
[abstract truncated] |
NTIS/DE91015663
61p |
1991.
Biological
studies in the impact zone of the Liquefied Gaseous Fuels
Spill Test Facility in Frenchman Flat, Nevada.
Authors:
Hunter RB
Saethre MB
Medica PA
Greger PD
Romney EM
Reynolds
Electrical and Engineering Co., Inc.,
Las Vegas, NV.
Sponsored
by Department of Energy, Washington,
DC. |
Desert
shrubs and rodents were monitored downwind of the Department
of Energy Liquefied Gaseous Fuels Spill Test Facility (LGF),
which is situated on a dry lake bed (playa). Plants were censused
in 1981 and 1986 through 1990; rodent survival was measured
from 1986 through 1990. During that time there were no apparent
effects of the spill tests on animals or plants off the edge
of the playa, which extends more than 2.5 kilometers from the
facility. Plant populations increased in volume from 1981 through
1986, then declined precipitously during drought in 1989 and
1990. Rodent populations also declined during the drought. Some
effects of spilled hydrogen fluoride gas
were seen on plants growing on manmade mounds on the
playa surface. Animal and bird species seen in the vicinity
of the LGF are also reported. 11 refs., 10 figs., 16 tabs. |
NTIS/DE91017447
18p |
1991.
Reliability
performance testing of totally encapsulating chemical protective
suits.
Authors:
Johnson JS
Swearengen PM
Lawrence
Livermore National Lab., CA. |
The need
to assure a high degree of reliability for totally encapsulating
chemical protective (TECP) suits has been recognized by Lawrence
Livermore National Laboratory's (LLNL) Hazards Control Department
for some time. We have conducted two series of worst-case TECP
suit exposure tests to hydrogen fluoride (HF) as tag-along experiments
at the DOE Liquid Gaseous Fuels Spill Test Facility, Frenchmen
Flat Basin, Nevada Test Site 2,3,4. Results from these tests
indicated additional experiments are necessary to adequately
evaluate TECP suit performance to HF. Our tag-along experience
also demonstrated the need for a separate Small Scale Spill
(S(sup 3)) Facility for carrying out TECP suit exposures, as
well as other performance evaluations of chemical emergency
response equipment. Financial support from a large number of
private sector manufacturers and users of HF, as well as the
DOE Collaborative Research and Development Program and LLNL,
has been obtained to continue our study of TECP suit perfor
[abstract truncated] |
NTIS/NUREG-1391
18p |
1991.
Chemical
Toxicity of Uranium Hexafluoride Compared to Acute Effects
of Radiation.
Author:
McGuire SA
Nuclear
Regulatory Commission, Washington, DC. Office of Nuclear Regulatory
Research. |
The chemical
effects from acute exposures to uranium hexafluoride are compared
to the nonstochastic effects from acute radiation doses of 25
rems to the whole body and 300 rems to the thyroid. The analysis
concludes that an intake of about 10 mg of uranium in soluble
form is roughly comparable, in terms of early effects, to an
acute whole body dose of 25 rems because both are just below
the threshold for significant nonstochastic effects. Similarly,
an exposure to hydrogen fluoride at a concentration of 25 mg/cu
m for 30 minutes is roughly comparable because there would be
no significant nonstochastic effects. For
times t other than 30 minutes, the concentration C of hydrogen
fluoride considered to have the same effect can
be calculated using a quadratic equation: C = 25 mg/cu m (30
min/t)(sup 0.5). The purpose of these analyses is to provide
information for developing design and siting guidelines based
on chemical toxicity for enrichment plants using uranium hexafluoride.
These guidelines are t [abstract truncated] |
NTIS/DE93601641
U.S.
Sales Only.
18p |
1991.
Study
on the retention of enriched UO(sub 2)F(sub 2) in the mouse
and its radiogenotoxicological effects.
Authors:
Hu Q
Zhu S
China
Nuclear Information Centre, Beijing. |
The study
on toxicological effects of enriched UO(sub 2)F(sub 2) was undertaken
in purebred BALB/c male mice to examine: (a) the retention in
body; (b) the testicular clearance; (c) the effect of sperm
abnormality; (d) the effect of chromosomal aberrations in spermatogonia
and primary spermatocytes; and (e) the effect of DNA damage
in germ cells in various spermiogenic stages.
Results show that enriched UO(sub 2)F(sub 2) mainly deposited
in the kidneys, then the skeleton and liver. The amount
of enriched UO(sub 2)F(sub 2) depositing in other tissues was
small. Enriched UO(sub 2)F(sub 2) was similar to the natural
uranium in transference and retention in the body. The testis
had efficient clearance of enriched UO(sub 2)F(sub 2). Enriched
UO(sub 2)F(sub 2) could result in sperm abnormality. Even with
the same treating does but at different treating time the rates
of sperm abnormality were different. Enriched UO(sub 2)F(sub
2) could result in chromosomal aberrations in spermatogonia
and primary spe [abstract truncated] |
NTIS/DE92015322
299p |
1990.
F-Area seepage basins, groundwater quality assessment report,
first quarter 1990.
Westinghouse
Savannah River Co., Aiken, SC.
Supporting
Agency: Department of Energy,
Washington, DC. |
During
the first quarter of 1990, wells which make up the F-Area Seepage
Basins (F-HWMF) monitoring network were sampled. Laboratory
analyses were performed to measure levels of hazardous constituents,
indicator parameters, tritium, gross alpha, and nonvolatile
beta. The primary contaminants observed at wells monitoring
the F-Area Seepage Basins are tritium, nitrate, cadmium, lead,
total radium, gross alpha, and nonvolatile beta. Concentrations
of at least one of the following constituents: tritium, nitrate,
total radium, gross alpha, cadmium, lead, tetrachloroethylene,
nonvolatile beta, endrin, lindane, barium, fluoride,
mercury, and trichlorethylene in excess of the primary drinking
water standard (PDWS) were observed in at least one well monitoring
the F-Area Seepage Basins. Tritium concentrations above the
PDWS occur in forty-four of the fifty-nine (75%) groundwater
monitoring wells. Nitrate concentrations above the PDWS occur
in thirty-four of the fifty-nine (59%) groundwater wells. The
rad [abstract truncated] |
NTIS/DE92017499
19p |
1990.
Behavior and control of ruthenium during operation of the
New Waste Calcining Facility at the Idaho Chemical Processing
Plant.
Author:
Christian JD
Westinghouse
Idaho Nuclear Co., Inc., Idaho Falls.
Supporting
Agency: Department of Energy,
Washington, DC. |
The New
Waste Calcining Facility (NWCF) processes acidic fluoride and
nitrate high level liquid wastes, converting them to granular
solids in a fluidized bed by internal combustion of kerosene.
The off gases pass through a venturi scrubber, silica gel bed,
and HEPA filters. Normally, less than 4 (mu)Ci (sup 106)Ru/day
are released in the form of particulate material to the stack.
Some operations can cause small, but noticeable increases in
(sup 106)Ru releases. Although resulting lung doses are extremely
small, because of the public perceptions and ALARA principles
controls have been implemented to prevent any releases significantly
above normal. Evaluations were made of ruthenium behavior during
the various operations in the NWCF and parameters that affect
its volatility. The results of the evaluations and recommended
controls to prevent ruthenium releases, which are described
in detail, are as follows. Dissolution of calciner bed in boiling
13 M HNO(sub 3) with the silica gel beds bypassed res [abstract
truncated] |
NTIS/DE89008970
Portions
of this document are illegible in microfiche products.
157p |
1989.
Health
Risks from Mixtures of Radionuclides and Chemicals in Drinking
Water.
Authors:
Jones TD
Owen BA
Oak
Ridge National Lab., TN. |
The Food
and Drug Administration (FDA) has pioneered a ''generally recognized
as safe,'' or GRAS, concept. In this study, we propose to build
on that infrastructure somewhat differently but in a way consistent
with the general intent of the FDA. As three examples of potential
GRAS-equivalent indexes, we explore: hypothetically pure utility
drinking water containing fluoride (1 ppM) and chlorination
residue products consumed at a personal ingestion rate of 2
L/d; consumption of one reference metal and 2 L/d and the 40-mrem
annual natural terrestrial radiation background as described
by the US National Academy of Sciences (NAS 1980). On the basis
of conventional QRA models and the proposed relative method
scaled to the described GRAS-equivalent indexes, we demonstrate
techniques of relative comparisons to enhance absolute or QRA
models and simultaneously to implement a ''reality check.''
Comparisons permit the decision maker to draw meaningful conclusions
to better allocate resources. We demonstra [abstract truncated] |
NTIS/DE89011306
Portions
of this document are illegible in microfiche products.
85p |
1989.
Evaluation
of Chemical Sensors for In Situ Ground-Water Monitoring at
the Hanford Site.
Authors:
Murphy EM
Hostetler DD
Battelle
Pacific Northwest Labs., Richland, WA.
Supporting
Agency: Department of Energy,
Washington, DC. |
This report
documents a preliminary review and evaluation of instrument
systems and sensors that may be used to detect ground-water
contaminants in situ at the Hanford Site. Three topics are covered
in this report: (1) identification of a group of priority contaminants
at Hanford that could be monitored in situ, (2) a review of
current instrument systems and sensors for environmental monitoring,
and (3) an evaluation of instrument systems that could be used
to monitor Hanford contaminants. Thirteen
priority contaminants were identified in Hanford ground water,
including
carbon
tetrachloride and six related chlorinated hydrocarbons, cyanide,
methyl ethyl ketone, chromium (VI), fluoride,
nitrate, and uranium. Based on transduction principles, chemical
sensors were divided into four classes, ten specific types of
instrument systems were considered: fluorescence spectroscopy,
surface-enhanced Raman spectroscopy (SERS), spark excitation-fiber
optic spectrochemical emission sensor (FOSES), chemical op [abstract
truncated] |
NTIS/DE89014924
Portions
of this document are illegible in microfiche products.
11p |
1989.
Integrated
Enviromental Monitoring Program at a US Nuclear Research Facility.
Author:
Gray RH
Battelle
Pacific Northwest Labs., Richland, WA. |
Water quality
issues are key components of a comprehensive environmental monitoring
and surveillance program. In addition to monitoring radioactivity
and chemicals in surface and ground water, the program monitors
air, foodstuffs, wildlife, soil and natural vegetation. Population
numbers of key wildlife species are also determined, usually
during the breeding season. In 1987, measured Hanford Site perimeter
concentrations of airborne radionuclides were below applicable
guidelines. Tritium and nitrate continued to be the most widespread
constituents in onsite ground water. Chromium, cyanide, fluoride,
and carbon tetrachloride were found in
ground-water wells near operating areas. Concentrations
of radionuclides identified at a municipal water intake on the
Columbia River were below limits established for drinking water.
Foodstuffs irrigated with river water taken downstream of the
site showed low levels of radionuclides that were similar to
concentrations found in foodstuffs not irrigated with Co
[abstract truncated] |
NTIS/DE90617516
U.S. Sales
Only.
174p |
1989.
(Contribution
to the study of uranium migration and some trace elements
in solution from Pocos de Caldas uranium mining).
Author:
Zenaro R
Pontificia
Univ. Catolica do Rio de Janeiro (Brazil). Dept. de Quimica. |
It was
studied the chemical composition of ground water from four boreholes
as a contribution to the hydrogeochemical studies in the Pocos
de Caldas uranium mining. Methods for water analyses were selected
and optimized in order to determine the main anions, specially
the ones which form stable complexes with uranium ions. Fluoride
and chloride were determined by potentiometry; phosphate, nitrate
and silicate by spectrophotometry. Cations were determined by
atomic absorption spectrophotometry flame emission and argon
plasma emission excited by continuous current arch (DCP). Uranium
was determined by fluorimetry with a concentration range from
3 to 7 ppb and its distribution calculated among the different
species into solution through the measures of pH, Eh, anion
amounts and stability of their respective complexes. (author).
(Atomindex citation 21:023320) Thesis. In Portuguese. |
| NTIS/DE89008246
Portions
of this document are illegible in microfiche products.
15p |
1989.
Monitoring
for Potential Environmental Problems at a Nuclear Research
Facility at Hanford, Washington, USA.
Author:
Gray RH
Battelle
Pacific Northwest Labs., Richland, WA.
Supporting
Agency: Department of Energy,
Washington, DC. |
Objectives
are to detect and assess potential impacts of site operations
on air, surface and ground water, foodstuffs, fish, wildlife,
soil and vegetation. Data from monitoring efforts are used to
calculate the overall radiological dose to humans working onsite
or residing in nearby communities. In 1987, measured Hanford
Site perimeter concentrations of airborne radionuclides were
below applicable DOE and Environmental Protection Agency guidelines.
Tritium and nitrate continued to be the most widespread constituents
in onsite ground water. Chromium, cyanide, fluoride,
and carbon tetrachloride were found in
ground-water wells near operating areas. Concentrations
of radionuclide and nonradiological water quality in the Columbia
River were in compliance with applicable standards. Foodstuffs
irrigated with river water taken downstream of the Site showed
low levels of radionuclides that were similar to concentrations
found in foodstuffs from control areas not irrigated with Columbia
River water. Low [abstract truncated] |
|
