National Air and
         Radiation Environmental
         Laboratory
1504 Avenue A
Montgomery, Alabama
36115-2601
EPA 520/5-90-018
June 1990
         Radiation
 X-/EPA
        Environmental Radiation
        Data
         Report 60
        October - December 1989
I


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ENVIRONMENTAL




RADIATION




DATA
                    REPORT 60




               October - December 1989
      United States Environmental Protection Agency




             Office of Radiation Programs

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                                               Preface
    Environmental Radiation Data (ERD) is compiled and distributed quarterly by the Office of Radiation
Programs' National Air and Radiation Environmental Laboratory (NAREL) in Montgomery, Alabama, and
contains data from the Environmental Radiation Ambient Monitoring System (ERAMS). Data from similar
networks operated by contributing States, Canada, Mexico, and the Pan American Health Organization are
reported in the ERD when available.
    ERAMS was established in 1973 by the U. S. Environmental Protection Agency's Office  of Radiation
Programs (ORP). The ERAMS is comprised of nationwide sampling stations that provide air, surface and
drinking water, and milk samples from which environmental radiation levels are derived.  The major emphasis
for ERAMS is upon identifying trends in the accumulation of long-lived radionuclides in the environment.
    Sampling locations  are selected to provide optimal population coverage while functioning to monitor
fallout from nuclear devices and other forms of radioactive contamination of the environment. The radiation
analyses performed on these samples include gross alpha and gross beta levels, gamma analyses for fission
products, and specific analyses for uranium, plutonium, strontium, iodine,  radium, krypton,  and tritium.
This monitoring effort also provides ancillary information on natural background levels and on routine and
accidental releases into the environment from stationary sources.
    The radiochemical procedures used by the NAREL to analyze the ERAMS  samples are  contained in
Eastern Environmental Radiation Facility Radiochemistry Procedures'Manual (EPA 520/5-84-006).  Station
operation and sample collection are in accordance with procedures contained in the ERAMS Manual (EPA
520/5-84-007, 008, 009).
                                                  in

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                     Environmental Radiation  Data










                                      Contents




                                                                                   Page




Data - Reporting Rationale and Procedures                                              ix





Data - ERAMS                                                                       1





       Section I.    Air Program                                                        1





                   1. Airborne Participates and Precipitation                              1





                   2. Plutonium and Uranium in Airborne Particulates                     15





                   3. Krypton-85                                                     16





       Section II.   Water Program                                                     17





                   1. Surface Water                                                   17





                   2. Drinking Water                                                  20





       Section III.  External Gamma Ambient Monitoring Program                         24





       Section IV.  Milk  Program                                                       25





                   1. Pasteurized Milk                                                 25





                   2. Strontium-90 and Strontium-89 in Milk                             32





                   3. Carbon-14  in Milk                                               33

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                         Environmental Radiation Data










                                       List of Tables




Table                                                                                     Page





  1      ERAMS Reporting Increments and Minimum Detectable Levels                          xi





  2      Gross Beta Concentrations in Airborne Particulates: October 1989                       2





  3      Gross Beta Concentrations in Airborne Particulates: November 1989                      4





  4      Gross Beta Concentrations in Airborne Particulates: December 1989                      6





  6      Gross Beta Concentrations in Precipitation:  October 1989                               8





  6      Gross Beta Concentrations in Precipitation:  November 1989                             10





  7      Gross Beta Concentrations in Precipitation:  December 1989                             12





  8      Tritium Concentrations in Precipitation: October   December 1989                       13





  9      Surface Water Tritium Concentrations: October  December 1989                        18





  10    Drinking Water Tritium Concentrations: October   December 1989                       21





  11    Concentrations of Radionuclides in Pasteurized Milk: October  1989                       26





  12    Concentrations of Radionuclides in Pasteurized Milk: November  1989                     28





  13    Concentrations of Radionuclides in Pasteurized Milk: December  1989                     30





  14    Strontium-90 and Strontium-89 in Pasteurized Milk: EPA Regional Composites            32

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                              DATA   Reporting Rationale and Procedures
     In  1973, the U.S. Environmental Protection Agency's  Office of Radiation  Programs established the
Environmental Radiation Ambient Monitoring System (ERAMS) to provide continuous, accurate, and usable
environmental radiation data to the  public.  For completeness, ERAMS data for  all specific  radionuclide
analyses are reported  as the calculated results indicate, whether the numbers are negative, zero, or positive.

                                           Reporting Rationale

     Frequently,  there is little or no radioactivity in environmental media. Thus, the results of laboratory
analyses should  statistically show a distribution of negative and positive numbers  about zero.  A negative
value occurs  when a  previously  determined background value is  subtracted  from a sample value  that  is
less  than that of the  background.  Prior to July  1975, ERAMS data were not reported  numerically when
the results  were less than a specified reporting level or minimum detectable  level.  The  present  reporting
procedure allows all the data to be reported and evaluated statistically without an arbitrary cutoff of small
or negative numbers.  This approach  will facilitate estimates of bias in the nuclide analyses and will allow
better evaluation of distributions and trends in environmental data.
     When reviewing the data in this  report, caution should  be exercised  in the interpretation of individual
negative values.  Obviously,  a negative activity value has no physical significance.  Such numbers, however,
are significant when taken together with other observations that indicate that the true value of a distribution
is near  zero.  When an  average of many measurements produces a result significantly less than  zero,  this
indicates a  bias in the measurement procedure.
     (1)  Reported Values
         Specific Analyses. All specific radionuclide analyses will be reported as the counting results indicate,
     whether  the value is negative, zero, or positive. All reported values are corrected for  radioactive decay
     to the collection date.
          Gross  Analyses.  The  actual value of gross  radioactivity measurements will be reported,  unless
     the  value is below the minimum detectable  level  (MDL) at the 1o~ confidence  level,  then  < minimum
     detectable level will be reported.
         MDL is defined as  the 3
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                                       Table  1
ERAMS  Reporting Increments and Minimum Detectable Levels
                           for  Radionuclide Analyses
Radionuclide
Gross Alpha
t Gross Beta
Tritium
Carbon-14
Krypton-85
ft Plutonium-238, 239,240
J Uranium-234, 235,238
Radium-226
Strontium-90
|J Strontium-89
tt Iodine-131
Iodine-129
Cesium— 137
t| Barium-140
Potassium
Potassium-40
Media
Water
Air
Water
Precipitation
Reporting
Units
pCi/1
pCi/m3
pCi/1
nCi/m2
Reporting
Increments
1 PCi-/l
0.01 pCi/m3
1 pCi/1
0.01 nCi/m2
Minimum
Detectable
Levels
2 pCi/1
0.01 pCi/m3
1 pCi/1
0.01 nCi/m2
(specific radiochemical analyses)
Water
Milk
Milk
Ambient Air
Air
Milk
Water
Air
Milk
Water
Water
Milk
Water
Milk
Milk
Water
Water
Milk
Milk
Water
Milk
Water
Milk
Water
Water
nCi/1
nCi/1
pCi/1
pCi/m3
aCi/m3
pCi/1
pCi/1
aCi/m3
pCi/1
pCi/1
pCi/1
pCi/1
pCi/1
pCi/1
pCi/1
PCi/l
PCi/l
fCi/1
pCi/1
pCi/1
pCi/1
pCi/1
g/1
g/1
pCi/1
0.1 nCi/1
0.1 nCi/1
1 pCi/1
0.1 pCi/m3
0.1 aCi/m3
0.001 pCi/1
0.001 pCi/1
0.1 aCi/m3
0.001 pCi/1
0.001 pCi/1
0.1 pCi/1
0.1 pCi/1
0.1 pCi/1
1 pCi/1
1 pCi/1
1 pCi/1
0.1 pCi/1
0.1 fCi/1
1 pCi/1
1 pCi/1
1 pCi/1
1 pCi/1
0.1 g/1
0.1 g/1
1 pCi/1
0.2 nCi/1
0.2 nCi/1
15 pCi/1
2 pCi/m3
0.015 pCi
0.015 pCi
0.015 pCi
0.015 pCi
0.015 pCi
0.015 pCi
0.1 pCi/1
1 pCi/1
1 pCi/1
5 pCi/1
10 pCi/1
10 pCi/1
0.4 pCi/1
0.4 fCi/1
10 pCi/1
10 PCi/l
10 pCi/1
10 pCi/1
0.12 g/1
0.12 g/1
100 pCi/1
  f The value of MDL for precipitation in terms of nCi/m  would be dependent on precipitation (mm).
  ft This value of MDL for air in terms of pCi/m would be dependent on the air volume. Measurement by alpha spectroscopy
    that includes contributions of plutonium-239 and plutonium-240. MDL for all media given per sample.
  t This value of MDL for air in terms of pGi/m would be dependent on the air volume. MDL for all media given per sample.
  tJ Activity as of the day of counting.
                                            XI

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                                                                                          DATA  EPA
                                   ENVIRONMENTAL RADIATION
                            AMBIENT MONITORING SYSTEM (ERAMS)
    Section I. Air Program

                                Airborne Particulates  and Precipitation

    Gross beta radioactivity measurements and certain specific analyses are performed on air participates
and precipitation samples as indicator measurements in assessing the general (national) impact of all con-
tributing  sources on environmental levels of radiation.
    Airborne particulates are collected continuously at field stations representing wide geographic coverage,
including  present and potential sources of environmental radioactivity. Sampling sites are located throughout
the United States.
    Filters (10-cm diameter synthetic fiber) from air samplers are changed twice weekly and field measure-
ments are made with a G-M survey meter ' at 5 hours and 29 hours after collection to allow for radon and
thoron daughter product decay.  Field estimates are reported  to appropriate EPA officials by telephone or
mail depending on  the activity levels found.
    The filters are sent  to NAREL for more sensitive analyses in a low background beta counter. Gamma
scans are  performed on all filters  showing gross beta counts greater than 1 pCi/m3  The laboratory obtained
values are usually lower than the field estimates due to the decay of naturally occurring radionuclides between
the times  of the two measurements.
    Precipitation samples are collected at  those field stations collecting air filters. These samples are also
sent to NAREL where  they are composited monthly for gamma scans, tritium, and  gross beta  activity
measurements. A composite of the March, April, and May precipitation samples is analyzed for plutonium-
238, -239, -240, and uranium-234, -235, and -238.
    A compilation of individual measurements is  available from the National Air and  Radiation Environ-
mental Laboratory,  1504 Avenue A, Montgomery, AL  36115-2601.

    Tables 2-4 contain the data in airborne partirulate samples for October  December 1989.   Tables 5-7
contain the data in  precipitation sample for October - December  1989.  Table 8 contains  the data for tritium
in precipitation samples for October   December 1989 at the selected sites.
   ' The counts at five hours for the Montgomery, Alabama, station are performed on n low background beta counter.


                                                   1

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         Table 2

  Airborne Participates
Gross Beta Concentrations
       October 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CT : HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL: MIAMI
HI: HONOLULU
IA:IOWA CITY
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:TOPEKA
KY: FRANKFORT
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LANSING
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NE: LINCOLN
NH: CONCORD
NJ: TRENTON
NM: SANTA FE
NV:LAS VEGAS
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
Number
of
Samples
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
4
6
9
7
8
9
9
9
9
9
9
9
9
9
4
9
9
9
3
8
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
1.4 0.1 0.6
0.9 0.2 0.5
4.7 0.6 1.6
0.0 0.0 0.0
0.4 0.0 0.2
1.4 0.7 1.0
0.3 0.1 0.1
0.5 0.0 0.2
0.2 0.0 0.1
0.1 0.0 0.0
0.2 0.1 0.2
0.4 0.1 0.2
0.8 0.0 0.4
0.0 0.0 0.0
0.8 0.0 0.5
3.2 0.1 0.6
4.6 0.6 1.9
0.6 0.3 0.5
0.2 0.0 0.1
. 0.5 0.1 0.2
0.4 0.0 0.2
0.3 0.1 0.2
1.0 0.1 0.5
1.3 0.3 0.6
0.8 0.2 0.5
0.4 0.0 0.1
0.0 0.0 0.0
2.6 0.8 1.6
2.4 0.3 1.6
0.3 0.0 0.2
1.2 0.1 0.5
0.2 0.0 0.1
0.3 0.1 0.2
0.4 0.1 0.3
0.5 0.1 0.2
0.0 0.0 0.0
1.0 0.1 0.2
NAREL Lab
Measurment
Max Min Avg
(pCi/m3)
0.02 0.00 0.01
0.02 0.01 0.02
0.03 0.01 0.02
0.01 0.00 0.01
0.03 0.01 0.01
0.02 0.01 0.01
0.03 0.00 0.01
0.02 0.00 0.01
0.01 0.00 0.01
0.01 0.00 0.01
0.01 0.00 0.00
0.02 0.01 0.01
0.02 0.00 0.01
0.02 0.00 0.01
0.03 0.01 0.02
0.03 0.00 0.02
0.02 0.01 0.02
0.03 0.01 0.01
0.02 0.01 0.01
0.03 0.00 0.01
0.03 0.01 0.01
0.02 0.00 0.01
0.04 0.01 0.01
0.05 0.00 0.02
0.05 0.01 0.03
0.03 0.00 0.02
0.02 0.01 0.01
0.03 0.01 0.02
0.08 0.01 0.02
0.02 0.00 0.01
0.03 0.00 0.01
0.01 0.01 0.01
0.02 0.01 0.02
0.03 0.00 0.01
0.03 0.00 0.01
0.01 0.01 0.01
0.03 0.00 0.01

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                  Table 2 (continued)
                 Airborne Participates
              Gross Beta Concentrations
                       October 1989
Location
OH: COLUMBUS
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:GOLDSBORO
PA:HARRISBURG
PA: PHILADELPHIA
PA: PITTSBURGH
PA .-THREE MILE ISLAND
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WA: SPOKANE
WI:MADISON
WV: CHARLESTON
WY: CHEYENNE
Number
of
Samples
6
9
9
9
8
9
9
1
9
9
9
2
9
9
9
8
9
9
9
9
6
8
8
4
5 -Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.3 0.1 0.2
0.4 0.1 0.2
1.1 0.2 0.5
1.0 0.2 0.5
0.0 0.0 0.0
1.8 0.0 0.5
1.5 0.1 0.5
0.1 0.1 0.1
0.1 0.1 0.1
1.4 0.0 0.5
0.7 0.0 0.3
0.0 0.0 0.0
1.0 0.1 0.3
1.7 0.1 0.9
1.3 0.1 0.4
0.4 0.1 0.3
0.4 0.1 0.3
0.8 0.1 0.3
1.0 0.1 0.4
0.6 0.0 0.2
0.7 0.2 0.4
0.8 0.1 0.5
0.4 0.1 0.2
0.3 0.2 0.3
NAREL Lab
Measurment
Max Min Avg
(pCi/m3)
0.04 0.00 0.02
0.04 0.00 0.02
0.05 0.01 0.02
0.02 0.01 0.01
0.01 0.00 0.01
0.03 0.00 0.01
0.03 0.00 0.01
0.01 0.01 0.01
0.03 0.01 0.02
0.02 0.00 0.01
0.04 0.00 0.01
0.01 0.01 0.01
0.04 0.01 0.02
0.05 0.00 0.02
0.03 0.00 0.02
0.02 0.01 0.01
0.03 0.01 0.02
0.02 0.00 0.01
0.03 0.00 0.01
0.01 0.00 0.01
0.01 0.01 0.01
0.02 0.00 0.01
0.03 0.01 0.02
0.01 0.01 0.01
Minimum Detectable Limit
Minimum Detectable Limit
for field estimates - 0.1 pCi/m3
for laboratory measurement - 0.01 pCi/m3

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         Table 3
  Airborne Participates
Gross Beta Concentrations
       November 1989
, Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CT: HARTFORD
DE:WILMINGTON
FL: JACKSONVILLE
FL: MIAMI
HI: HONOLULU
IA:IOWA CITY
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:TOPEKA
KY: FRANKFORT
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI: LANSING
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
ND:BISMARCK
NE:LINCOLN
NH: CONCORD
NJ:TRENTON
NV:LAS VEGAS
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
OH: COLUMBUS
Number
of
Samples
6
8
8
7
7
9
9
8
2
8
8
9
9
8
7
7
8
4
6
7
6
9
7
7
8
7
9
7
7
8
9
8
8
7
1
7
7
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.6 0.1 0.3
0.5 0.1 0.3
3.3 0.3 1.5
0.0 0.0 0.0
0.9 0.1 0.3
1.4 0.3 0.8
0.1 0.0 0.1
0.2 0.0 0.1
0.3 0.2 0.3
0.1 0.0 0.0
0.3 0.1 0.2
1.0 0.1 0.3
0.9 0.2 0.5
0.0 0.0 0.0
0.7 0.1 0.4
2.3 0.0 0.6
3.2 0.1 1.3
0.4 0.2 0.3
0.1 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.1
0.2 0.1 0.2
0.9 0.0 0.3
0.9 0.3 0.7
0.8 0.1 0.3
0.3 0.0 0.1
0.0 0.0 0.0
1.0 0.3 0.6
3.2 0.0 1.9
0.1 0.0 0.1
0.3 0.1 0.2
0.6 0.1 0.3
0.2 0.1 0.2
0.3 0.1 0.1
0.1 0.1 0.1
1.1 0.0 0.2
0.2 0.1 0.2
NAREL Lab
Measurment
Max Min Avg
(pCi/m3)
0.02 0.01 0.01
0.02 0.01 0.01
0.05 0.01 0.02
0.04 0.01 0.02
0.04 0.00 0.02
0.02 0.00 0.01
0.01 0.00 0.01
0.03 0.01 0.01
0.02 0.01 0.01
0.02 0.00 0.01
0.01 0.00 0.00
0.03 0.01 0.02
0.03 0.00 0.01
0.02 0.00 0.01
0.05 0.01 0.02
0.02 0.01 0.01
0.03 0.01 0.02
0.04 0.01 0.02
0.02 0.01 0.02
0.02 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.01 0.00 0.01
0.02 0.00 0.01
0.19 0.01 0.04
0.02 0.01 0.01
0.01 0.00 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0.04 0.01 0.02

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                  Table 3 (continued)

                 Airborne Participates
              Gross Beta Concentrations
                      November 1989
Location
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:GOLDSBORO
PA:HARRISBURG
PA: PITTSBURGH
PA: THREE MILE ISLAND
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WA: SPOKANE
WI:MADISON
WV: CHARLESTON
WY: CHEYENNE
Number
of
Samples
8
8
6
7
8
9
9
8
8
2
7
7
7
6
7
8
7
7
9
9
6
4
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.2 0.1 0.1
0.5 0.1 0.2
1.2 0.4 0.7
0.0 0.0 0.0
0.9 0.0 0.3
0.3 0.0 0.2
0.1 0.0 0.1
0.4 0.0 0.2
0.3 0.0 0.1
1.4 0.0 0.7
0.5 0.1 0.3
0.8 0.1 0.5
0.5 0.0 0.2
0.3 0.1 0.2
0.9 0.2 0.5
1.7 0.2 0.6
0.5 0.1 0.3
0.2 0.0 0.1
0.6 0.1 0.3
0.5 0.2 0.3
0.2 0.0 0.0
0.3 0.1 0.2
NAREL Lab
Measurment
Max Min Avg
(pCi/m3)
0.03 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.02 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.01 0.01 0.01
0.05 0.01 0.02
0.02 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.00
0.02 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.01
Minimum Detectable Limit
Minimum Detectable Limit
for field estimates - 0.1 pCi/m3.
for laboratory measurement - 0.01 pCi/m3.

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         Table 4
  Airborne Participates
Gross Beta Concentrations

       December 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: MIAMI
HI: HONOLULU
IA:IOWA CITY
ID -.BOISE
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:TOPEKA
KY: FRANKFORT
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LANSING
MN:MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC:WILMINGTON
ND: BISMARCK
NE: LINCOLN
NH: CONCORD
NJ:TRENTON
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
OH: COLUMBUS
Number
of
Samples
8
9
8
9
9
8
8
9
9
8
8
8
9
7
9
7
2
5
7
9
8
8
9
8
8
6
9
7
9
8
8
1
9
9
1
7
4
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
1.4 0.1 0.4
0.5 0.0 0.3
3.8 1.2 2.4
0.1 0.0 0.0
0.7 0.1 0.3
1.2 0.2 0.6
0.1 0.0 0.0
0.2 0.0 0.1
0.1 0.0 0.1
0.3 0.1 0.2
0.3 0.0 0.2
1.3 0.3 0.8
0.0 0.0 0.0
0.5 0.2 0.3
3.2 0.0 1.2
1.8 0.5 1.1
0.4 0.3 0.4
0.1 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.0
0.1 0.1 0.1
0.8 0.0 0.3
2.0 0.3 0.7
0.3 0.1 0.2
0.1 0.0 0.0
0.0 0.0 0.0
1.1 0.2 0.5
2.1 0.0 0.7
0.0 0.0 0.0
0.3 0.0 0.1
0.6 0.1 0.3
0.0 0.0 0.0
0.2 0.1 0.1
0.1 0.0 0.0
0.0 0.0 0.0
0.4 0.0 0.2
0.2 0.0 0.1
NAREL Lab
Measurment
Max Min Avg
(pCi/m3)
0.05 0.01 0.02
0.03 0.01 0.02
0.03 0.02 0.03
0.05 0.01 0.03
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.01
0.01 0.00 0.00
0.04 0.01 0.02
0.05 0.01 0.03
0.03 0.01 0.02
0.04 0.01 0.03
0.03 0.01 0.02
0.04 0.01 0.02
0.03 0.02 0.03
0.02 0.01 0.01
0,02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.04 0.01 0.02
0.02 0.01 0.02
0.02 0.01 0.01
0.02 0.00 0.01
0.03 0.01 0.02
0.06 0.01 0.03
0.02 0.01 0.01
0.02 0.01 0.01
0.06 0.01 0.02
0.02 0.02 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.02

-------
    Table 4 (continued)

  Airborne Particulates
Gross Beta Concentrations

       December 1989


Location

OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:GOLDSBORO
PA:HARRISBURG
PA: PITTSBURGH
PA: THREE MILE ISLAND
RI: PROVIDENCE
SC: COLUMBIA
SD: PIERRE
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WA: SPOKANE
WI:MADISON
WV: CHARLESTON
WY: CHEYENNE

Number
of
Samples
9
7
8
8
9
8
9
8
8
9
2
6
8
6
8
6
6
9
8
7
7
4
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.2 0.0 0.1
0.2 0.1 0.1
1.4 0.1 0.7
0.0 0.0 0.0
0.3 0.0 0.1
0.3 0.1 0.2
0.3 0.1 0.2
0.3 0.0 0.2
0.3 0.0 0.1
0.9 0.1 0.2
0.2 0.2 0.2
0.4 0.2 0.3
0.4 0.1 0.2
0.7 0.2 0.3
0.7 0.1 0.4
0.4 0.0 0.2
0.3 0.1 0.2
0.2 0.0 0.1
0.3 0.1 0.2
0.4 0.1 0.2
0.2 0.0 0.1
0.1 0.1 0.1
NAREL Lab
Measurment
Max Min Avg
(pCi/m3)
0.03 0.01 0.02
0.04 0.01 0.02
0.04 0.01 0.02
0.02 0.00 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.04 0.01 0.02
0.01 0.01 0.01
0.03 0.01 0.02
0.05 0.01 0.02
0.02 0.01 0.01
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.01
0.03 0.00 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.01 0.01 0.01
Minimum Detectable Limit for field estimates - 0.1 pCi/m3.
Minimum Detectable Limit for laboratory measurement - 0.01 pCi/m3.

-------
         Table 5

Gross Beta Concentrations
     in Precipitation

        October 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL:MIAMI
HI: HONOLULU
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LANSING
MN MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
NH: CONCORD
NJ:TRENTON
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
OH:PAINESVILLE
OH: TOLEDO
Depth
(mm)
75.2
82.6
8.8
42.0
10.0
138.0
140.0
62.6
81 .4
93.0
37.6
3.2
23.6
60.0
40.0
89.0
38.6
11.0
24.0
42.0
72.0
98.0
106.8
80.4
27.0
42.0
24.0
37.0
103.0
30.0
Act . ±2
-------
        Table 5 (continued)

    Gross Beta Concentrations
          in Precipitation

             October 1989
Location
OK: OKLAHOMA CITY
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
PA: PHILADELPHIA
PA: PITTSBURGH
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WI:MADISON
WV: CHARLESTON
Depth
(mm)
38.0
52.6
148.6
50.0
26.0
52.6
92.6
50.6
66.0
49.2
8.0
5.0
28.0
229.0
71.0
24.0
48.0
Act. ±2cr
(nCi/m2)
0.00 0.01
0.06 0.02
0.30 0.08
0.01 0.02
0.02 0.01
0.09 0.03
0.10 0.04
0.02 0.02
0.01 0.02
0.02 0.02
0.01 0.00
0.01 0.00
0.03 0.01
0.12 0.08
0.06 0.03
0.04 0.01
0.06 0.02
Specific
Gamma
Activity
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND

-------
         Table 6

Gross Beta Concentrations
     in Precipitation

       November 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
CA: BERKELEY
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL: MIAMI
HI: HONOLULU
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
LA: NEW ORLEANS
ME: AUGUSTA
MI:LANSING
MN: MINNEAPOLIS
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NH: CONCORD
NJ:TRENTON
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
OH:PAINESVILLE
OH: TOLEDO
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
Depth
(mm)
88.2
57.0
32.6
92.0
39.0
6.0
18.2
14.0
8.0
16.0
53.4
33.0
26.0
107.8
17.2
42.0
83.0
42.0
5.4
70.8
59.4
46.0
71.0
16.0
148.0
97.6
40.0
31 .0
60.6
54.0
Act. ±2cr
(nCi/m2)
0.25 0.05
0.05 0.02
0.00 0.01
0.13 0.05
0.12 0.02
0.01 0.00
0.04 0.01
0.01 0.01
0.02 0.00
0.07 0.01
0.19 0.04
0.02 0.02
0.03 0.01
0.08 0.04
0.03 0.01
0.01 0.02
0.07 0.04
0.05 0.02
0.03 0.00
0.10 0.03
0.09 0.03
0.04 0.02
0.09 0.03
0.01 0.01
0.33 0.08
0.18 0.05
0.02 0.02
0.03 0.01
0.11 0.03
0.03 0.02
Specific
Gamma
Activity
ND
ND
ND
ND
ND
ND
ND
ND
ND
NA
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
            10

-------
    Table 6 (continued)

Gross Beta Concentrations
     in Precipitation

       November 1989
Location
PA: PITTSBURGH
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WI:MADISON
WV: CHARLESTON
Depth
(ram)
20.0
8.0
4.4
43.2
104.0
111.4
18.6
71.6
233.0
65.6
28.2
Act. ±2<7
(nCi/m2)
0.06 0.01
0.01 0.00
0.00 0.00
0.07 0.02
0.03 0.04
0.04 0.05
0.02 0.01
0.04 0.03
0.09 0.09
0.44 0.06
0.23 0.03
Specific
Gamma
Activity
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
a = Sigma Counting Error.
NA = Not Analyzed.
ND = No Gamma Activity Detectable.
             11

-------
         Table 7
Gross Beta Concentrations
     in Precipitation

       December 1989

Location
AL: MONTGOMERY
AR: LITTLE ROCK
DE: WILMINGTON
FL:MIAMI
HI: HONOLULU
ID: IDAHO FALLS
IL:CHICAGO
LA: NEW ORLEANS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
NJ:TRENTON
NY: NIAGARA FALLS
OH:PAINESVILLE
PA:HARRISBURG
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WI: MADISON

Depth
(mm)
135.8
11.0
4.0
55. 6
35.0
2.6
11.8
32.0
24.0
42.0
84.0
50.0
4.8
12.0
17.6
5.2
105.0
26.0
19.4
8.0
2.6
19.0
158.6
11.0

Act. ±2
-------
        Table 8
     Precipitation
Tritium Concentrations
 October  December 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL: MIAMI
HI: HONOLULU
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LAHSING
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NH: CONCORD
NJ: TRENTON
NY: NEW YORK CITY
NY:NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
PA: PHILADELPHIA
PA: PITTSBURGH
October 1989
nCi/1 ±2
-------
  Table 8 (continued)
     Precipitation
Tritium Concentrations
 October - December 1989

Location
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WI: MADISON
WV: CHARLESTON
October 1989
nCi/1 ±20-
NS
0.8 0.2
0.3 0.2
0.4 0.2
0.1 0.2
0.2 0.2
0.2 0.2
0.2 0.2
0.2 0.2
0.3 0.2
0.3 0.2
0.2 0.2
November 1989
nCi/1 ±2<7
0.2 0.2
1.4 0.2
0.3 0.2
0.2 0.2
0.3 0.2
NS
NS
0.1 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.2 0.2
December 1989
nCi/1 ±2cr
NS
NS
0.3 0.2
0.6 0.2
0.1 0.2
0.1 0.2
NS
0.2 0.2
0.3 0.2
0.1 0.2
0.1 0.2
NS
(7 = Sigma Counting Error.
NS = No Sample.
           14

-------
                   Plutonium and Uranium in Airborne Particulates and Precipitation

    Environmental radiation levels of plutonium and  uranium  are  determined by  the  analysis of semi-
annually composited samples  (air filters) collected from the continuously  operating airborne  participate
samplers.
    Concentration of the specific isotopes of plutonium-238, -239, and -240 and uranium-234, -235, and
-238 are determined by alpha spectroscopy following chemical separation.  The volume of air represented  by
the semiannual composite ranges from 25,000 to 40,000  cubic meters.
    Plutonium and uranium results are published when they become available.
                                                   15

-------
                                             Krypton-85

    Kiypton-85 is a long-lived noble gas with a half-life of 10.8 years. It is released  into the atmosphere
by nuclear reactor operations, fuel reprocessing, weapons tests, and research and defense related activities.
Krypton-85 also occurs naturally in minor quantities primarily from the neutron capture of stable krypton-
84 as well as spontaneous fission and  neutron-induced fission  of uranium. Krypton-85 in the atmosphere
has been monitored to identify and establish baseline levels and long-term trends.
    Krypton-85 analysis began in January 1973 with sample collections and analyses being performed for 12
sampling locations. These locations were selected to provide atmospheric coverage of the United States  with
considerations being given to the proximity to fuel reprocessing  plants, nuclear reactors,  and wide geographic
coverage.

    Dry compressed air samples, collected at each location, are  purchased from commercial air suppliers and
shipped to the NAREL where the krypton-85 is cryogenically separated and counted in a liquid scintillation
system.
    The last Kr-85 results were for 1976, 1977, and 1979. They were published in Environmental Radiation
Data:  Report 30.
                                                  16

-------
                                                                                         DATA  EPA
                                  ENVIRONMENTAL RADIATION
                            AMBIENT MONITORING SYSTEM (ERAMS)


    Section II. Water Program

    The ERAMS water program provides data on ambient radiation levels in" the nation's rivers, streams,
and drinking water supplies.

                                            Surface Water

    Quarterly grab samples are taken downstream from operating or future nuclear facilities at 58 stations.
    Surface water samples are analyzed for tritium quarterly and specific gamma activity annually. Tritium
is a primary radioactive pollutant from nuclear power plants and weapons production activities.
    Tritium  concentrations  are  determined by liquid scintillation counting of distilled samples.  Gamma
scans are performed annually to  determine  levels of gamma emitting radionuclides.
    Table 9 contains the data for tritium concentrations for October - December  1989.
                                                  17

-------
        Table 9
     Surface Water
Tritium Concentrations
 October  December 1989
Location
AL:DECATUR
AL:DOTHAN
AL:SCOTTSBORO
AR: LITTLE ROCK
CA:DIABLO CANYON
CA: EUREKA
CA:SAN ONOFRE
CA:SAN ONOFRE
CO:PLATTEVILLE
CT:EAST HADDAM
CT:WATERFORD
FL: CRYSTAL RIVER
FL:FT. PIERCE
FL: HOMESTEAD
GA:BAXLEY
IA: CEDAR RAPIDS
ID: BUHL
IL:E. MOLINE
IL: MORRIS
LA: NEW ORLEANS
MA: PLYMOUTH
MD:CONOWINGO
MD:LUSBY
ME:WISCASSET
MI:BRIDGMAN
MI:CHARLEVOIX
MI: MONROE
MI: SOUTH HAVEN
MN:MONTICELLO
MN:RED WING
MS: PORT GIBSON
NC: CHARLOTTE
NE:RULO
NJ:BAYSIDE
NJ: OYSTER CREEK
NV: BOULDER CITY
NY: CHELSEA
Source
TENNESSEE RIVER
CHATTAHOOCHEE RIVER
TENNESSEE RIVER
ARKANSAS RIVER
PACIFIC OCEAN
HUMBOLDT BAY
PACIFIC OCEAN
PACIFIC OCEAN
SOUTH PLATTE RIVER
CONNECTICUT RIVER
LONG ISLAND SOUND
GULF OF MEXICO
ATLANTIC OCEAN
BISCAYNE BAY
ALTAMAHA RIVER
CEDAR RIVER
SNAKE RIVER
MISSISSIPPI RIVER
ILLINOIS RIVER
MISSISSIPPI RIVER
CAPE COD BAY
SUSQUEHANNA RIVER
CHESAPEAKE BAY
MONTSEWAY BAY
LAKE MICHIGAN
LAKE MICHIGAN
LAKE ERIE
LAKE MICHIGAN
MISSISSIPPI RIVER
MISSISSIPPI RIVER
MISSISSIPPI RIVER
CATAWBA RIVER
MISSOURI RIVER
DELAWARE RIVER
OYSTER CREEK
COLORADO RIVER
HUDSON RIVER
Date
Collected
10/04/89
10/12/89
10/05/89
10/20/89
10/12/89
10/05/89
11/20/89
09/26/89
10/04/89
10/10/89
10/10/89
10/09/89
10/03/89
10/16/89
10/02/89
10/10/89
11/07/89
10/05/89
10/07/89
10/13/89
10/03/89
10/17/89
10/17/89
10/12/89
10/10/89
10/06/89
10/09/89
10/10/89
11/08/89
10/27/89
10/10/89
10/11/89
10/20/89
10/12/89
10/26/89
10/12/89
10/04/89
nCi/1 ±2
-------
               Table 9 (continued)

                 Surface Water
            Tritium Concentrations

             October  December 1989
Location
NY:OSSINING
OH: TOLEDO
ORrBRADWOOD
PA:DANVILLE
PA: PHILADELPHIA
PA: PHILADELPHIA
PA: PHILADELPHIA
SC:ALLENDALE
SC:BROAD RIVER
SC:HARTSVILLE
TN: KINGSTON
TX:MATAGORDA
VA:DOSWELL
VA: NEWPORT NEWS
VT:VERNON
WA:NORTHPORT
WA:RICHLAND
WI:TWO CREEKS
WI: VICTORY
WV: WHEELING
Source
HUDSON RIVER
LAKE ERIE
COLUMBIA RIVER
SUSQUEHANNA RIVER
SCHUYLKILL RIVER-QUEEN
DELAWARE RIVER
SCHUYLKILL RIVER-BELMONT
SAVANNAH RIVER
BROAD RIVER
LAKE ROBINSON
CLINCH RIVER
COLORADO RIVER
NORTH ANNA RIVER
JAMES RIVER
CONNECTICUT RIVER
COLUMBIA RIVER
COLUMBIA RIVER
LAKE MICHIGAN
MISSISSIPPI RIVER
OHIO RIVER
Date
Collected
10/11/89
10/02/89
10/24/89
10/18/89
10/13/89
10/13/89
10/13/89
10/31/89
10/12/89
10/23/89
10/10/89
10/10/89
10/05/89
10/17/89
10/24/89
11/08/89
11/20/89
10/23/89
10/09/89
10/02/89
nCi/1 ±20-
0.2 0.2
0.1 0.2
0.2 0.2
0.2 0.2
0.2 0.2
0.3 0.2
0.2 0.2
1.5 0.2
0.3 0.2
0.5 0.2
2.5 0.2
0.5 0.2
3.3 0.2
0.2 0.2
0.2 0.2
0.5 0.2
0.2 0.2
0.2 0.2
0.2 0.2
0.3 0.2
cr = Sigma Counting Error.
                        If)

-------
                                           Drinking Water

    This program monitors ambient radiation levels in drinking water at 78 sites.  These data serve to assess
trends and anomalies  in concentrations,  and to compare with standards set forth in  the  EPA "National
Interim Primary  Drinking Water Regulations."  These regulations provide for approval of supplies when
the combined radium-226  and radium-228 levels do not exceed 5 pCi/1, when the gross alpha (excluding
radon and uranium) levels do not exceed 15 pCi/1, when tritium levels do not exceed 20,000 pCi/1, when the
strontium-90 levels do not exceed 8 pCi/1, and when the gross beta levels do not exceed 50 pCi/1.
    Grab samples are taken at the 78 sites which are either major  population centers or selected  nuclear
facility environs.
    The analyses include (a)  tritium  on  a quarterly basis; (b) gross alpha, gross beta, strontium-90,  and
gamma on annual composites; (c) radium-226 if the gross alpha exceeds 2 pCi/1 and radium-228 if the
radium-226 falls  between 3 and 5 pCi/1;  (d) specific iodine-131 on one quarterly sample per year for each
station; and (e) an annual  composite for plutonium-238, -239, and -240 and uranium-234, -235, and -238
for stations that demonstrate gross alpha levels greater than 2 pCi/1.
    Tritium  analyses are performed by scintillation counting of the distilled samples.  Gross beta  and al-
pha are determined by evaporating an aliquot on a stainless  steel planchet for  counting.  Radium-226 is
determined by the standard emanation technique. Strontium-90 is determined by beta counting a strontium
carbonate precipitate isolated by ion exchange.
    Table 10 contains the data in drinking water for October   December 1989.

-------
       Table 10
    Drinking Water
Tritium Concentrations
 October  December 1989
Location
AK: FAIRBANKS
AL:DOTHAN
AL: MONTGOMERY
AL: MUSCLE SHOALS
AL:SCOTTSBORO
AR: LITTLE ROCK
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CO:PLATTEVILLE
CT: HARTFORD
DC:WASHINGTON
DE:DOVER
FL: MIAMI
FL: TAMPA
GA:BAXLEY
GA:SAVANNAH
HI: HONOLULU
IA: CEDAR RAPIDS
ID:BOISE
ID: IDAHO FALLS
IL: MORRIS
IL:W. CHICAGO
KS:TOPEKA
LA: NEW ORLEANS
MA: LAWRENCE
MD: BALTIMORE
MD:CONOWINGO
ME: AUGUSTA
MI: GRAND RAPIDS
MN:MINNEAPOLIS
MN:RED WING
MO: JEFFERSON CITY
MS: JACKSON
MS: PORT GIBSON
Date
Collected
10/13/89
10/12/89
10/03/89
10/04/89
10/05/89
10/27/89
10/03/89
10/05/89
10/02/89
10/04/89
10/02/89
10/06/89
10/04/89
10/19/89
10/05/89
10/02/89
12/04/89
10/17/89
10/03/89
10/04/89
10/13/89
10/04/89
10/02/89
10/02/89
10/10/89
10/02/89
10/04/89
10/17/89
10/03/89
10/06/89
10/17/89
10/10/89
10/02/89
10/10/89
10/24/89
nCi/1 ±2<7
0.3 0.2
0.3 0.2
0.3 0.2
0.2 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.3 0.2
0.1 0.2
0.3 0.2
0.2 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.4 0.2
0.1 0.2
0.5 0.2
0.1 0.2
0.3 0.2
0.3 0.2
0.3 0.2
0.1 0.2
0.2 0.2
0.3 0.2
0.3 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.4 0.2
0.1 0.2
0.1 0.2

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  Table 10 (continued)
    Drinking Water
Tritium Concentrations
 October December 1989
Location
MT: HELENA
NC: CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NE: LINCOLN
NH: CONCORD
NJ:TRENTON
NJ:WARETOWN
NM: SANTA FE
NM: SANTA FE
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
OH:CINCINNATI
OH: COLUMBUS
OH: EAST LIVERPOOL
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA: COLUMBIA
PA:HARRISBURG
PA:P'DELPHIA-BAXTER
PA:P'DELPHIA-QUEEN
PA: PHILADELPHIA
PA: PITTSBURGH
PC: CRISTOBAL
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
SC:HARTSVILLE
SC:JENKINSVILLE
SC: SENECA
TN: CHATTANOOGA
Date
Collected
10/04/89
10/11/89
12/07/89
10/02/89
10/01/89
10/09/89
10/23/89
10/26/89
10/04/89
11/29/89
10/12/89
10/02/89
10/02/89
10/06/89
10/03/89
10/10/89
10/25/89
10/04/89
10/02/89
10/04/89
10/13/89
10/04/89
10/11/89
10/13/89
10/13/89
10/13/89
10/23/89
10/03/89
10/10/89
10/26/89
10/04/89
10/23/89
10/06/89
10/31/89
12/22/89
nCi/1 ±2
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      Table 10 (continued)
        Drinking Water
    Tritium Concentrations
     October - December 1989
Location
TN:KNOXVILLE
TX: AUSTIN
VA:DOSWELL
VA:LYNCHBURG
VA: VIRGINIA BEACH
VI: ST. THOMAS
WA:RICHLAND
WA: SEATTLE
WI: GENOA CITY
WI:MADISON
Date
Collected
10/03/89
11/01/89
10/02/89
10/03/89
10/20/89
12/11/89
11/20/89
10/03/89
10/09/89
10/06/89
nCi/1 ±2(T
0.2 0.2
0.3 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.2 0.2
a — Sigma Counting Error.
                23

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                                                                                         DATA   EPA
                                  ENVIRONMENTAL RADIATION
                           AMBIENT MONITORING SYSTEM (ERAMS)


    Section III. External Gamma Ambient Monitoring Program

    The external gamma monitoring program, which began in October 1978, provides a continuous measure-
ment of ambient gamma exposure rates, including cosmic, at selected sites throughout the continental United
States.  Data from this program are used to evaluate fluctuations in natural background due to variations in
environmental conditions and to provide a means of monitoring any significant increases in ambient gamma
levels.  The program consists of approximately 22 sites representing wide geographic coverage throughout the
country.'  Although exposure measurements  at  these few sites are  not totally representative of nationwide
exposures,  they do indicate national trends.
    The monitoring program  utilizes CaF2:Mn thermoluminescent dosimeters (TLD's). These dosimeters
are commercially available glass-bulb type dosimeters with energy  compensating shields.  A group of three
TLD's is located at each station or site.  Dosimeters are annealed by the station operator prior to positioning
in the field. The dosimeters are returned to NAREL for readout approximately every three months. Several
dosimeters are  annealed by the station operator as controls and returned with the exposed field dosimeters
to correct for any exposures accumulated during shipment.
    Publication of EGAMP data has been temporarily suspended until problems with the data are resolved.
    Some of Ihesc sites may not return dosimeters each period and consequently the number of sites listed may vary slightly

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                                                                                          DATA   EPA


                                   ENVIRONMENTAL RADIATION
                            AMBIENT MONITORING SYSTEM (ERAMS)


    Section IV. Milk Program

                                            Pasteurized Milk

    This is a. cooperative program with the Dairy and Lipid Products Branch, Milk Sanitation Section, Food
and Drug  Administration.  Milk is  a reliable indicator of the general population's intake of raclionuclides
since it is consumed fresh by a large segment of the population and can contain several of the  biologically
important  radionuclides that result from environmental releases from nuclear activities. A primary function
of this program is to  obtain reliable monitoring data relative to current  radionuclide concentrations  and
determine  any long-term trends.
    Monthly samples are collected at 65 sampling sites with one or more located in each state, Puerto Rico,
and the Panama Canal Zone.  The samples are  composited, according to production,  from the  major milk
suppliers representing  more than 80 percent of the milk consumed in a given population center.
    The samples are analyzed for gamma emitting nuclides,  which include iodine-131,  barium-1-40, cesium-
137, and potassium.  All samples collected in July are analyzed for strontium-89 and stronlium-90. Also,
for the first  month of the three  quarters  beginning January, April  and  October,  10 regional composite
samples of milk made up from the states within each of EPA's 10 regions are analyzed  for strontium-89  and
strontium-90.
    Iodine-131, barium-140, cesium-137, and potassium are determined by gamma spectral analysis. Stron-
tium-89 and  strontium-90 are determined  by  beta counting a total strontium  precipitate  that  has been
chemically separated by ion  exchange.
    Tables 11-13 contain the concentrations of radionuclides in pasteurized milk for  October   December
1989.   Table 14 contains the concentrations of strontium-90 and strontium-89 in pasteurized milk  EPA
Regional Composites for October  December 1989.
                                                  25

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           Table 11
Concentrations of Raclionuclides
      in Pasteurized Milk
          October 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA:LOS ANGELES
CA: SACRAMENTO
CA:SAN FRANCISCO
CT: HARTFORD
DE:WILMINGTON
FL: TAMPA
GA: ATLANTA
HI: HONOLULU
IA:DES MOINES
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:WICHITA
KY: LOUISVILLE
LA: NEW ORLEANS
MA: BOSTON
MD: BALTIMORE
MI: DETROIT
MI: GRAND RAPIDS
MN:MINNEAPOLIS
MN:ST. PAUL
MO:KANSAS CITY
MO:ST. LOUIS
MS: JACKSON
MT: HELENA
NC: CHARLOTTE
ND:MINOT
NE: OMAHA
NH:MANCHESTER
NJ:TRENTON
NM:ALBUqUERQUE
NV:LAS VEGAS
NY: BUFFALO
NY: NEW YORK CITY
Date
Collected
10/06/89
10/03/89
10/05/89
10/06/89
10/02/89
10/30/89
10/02/89
10/18/89
10/11/89
10/10/89
10/03/89
10/04/89
10/03/89
10/02/89
10/02/89
10/30/89
10/03/89
10/06/89
10/04/89
10/06/89
10/06/89
10/02/89
10/02/89
10703/89
10/06/89
10/04/89
10/03/89
10/13/89
10/09/89
10/25/89
10/06/89
10/10/89
10/05/89
10/11/89
10/10/89
10/10/89
10/02/89
K
g/1 ±2er
1.52 0.13
1.56 0.13
1.52 0.13
1.69 0.13
1.57 0.13
1.50 0.09
1.45 0.06
1.27 0.12
1.45 0.12
1.57 0.12
1.54 0.12
1.62 0.12
1.63 0.12
1.69 0.23
1.33 0.12
1.54 0.13
1.60 0.08
1.46 0.12
1.43 0.12
1.65 0.12
1.77 0.23
1.53 0.13
1.53 0.13
1.58 0.09
1.55 0.12
1.43 0.09
1.44 0.12
1.46 0.13
1.57 0.22
1.44 0.08
1.28 0.12
1.32 0.12
1.45 0.13
1.48 0.13
1.58 0.08
1.43 0.12
1.60 0.08
137Cs
pCi/1 ±2
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                   Table 11 (continued)

            Concentrations of Raclionuclides
                   in Pasteurized Milk

                       October 1989
Location
NY: SYRACUSE
OHrCINCINNATI
OH: CLEVELAND
OK: OKLAHOMA CITY
OR: PORTLAND
PA: PHILADELPHIA
PA: PITTSBURGH
PC: CRISTOBAL
PR: SAN JUAN
SD: RAPID CITY
TN: CHATTANOOGA
TN:KNOXVILLE
TN: MEMPHIS
TX: AUSTIN
TX:FT. WORTH
VA: NORFOLK
VT: BURLINGTON
WA: SEATTLE
WA: SPOKANE
WV: CHARLESTON
WY:LARAMIE
Date
Collected
10/03/89
10/31/89
10/24/89
10/09/89
10/31/89
10/02/89
10/02/89
10/26/89
10/16/89
10/02/89
10/02/89
10/02/89
10/30/89
10/03/89
10/03/89
10/27/89
10/06/89
10/02/89
10/09/89
10/18/89
10/03/89
K
g/1 ±2(7
1.55 0.13
1.56 0.12
1.47 0.13
1.35 0.07
1.49 0.09
1.56 0.12
1.51 0.08
1.53 0.09
1.45 0.12
1.50 0.13
1.52 0.13
1.38 0.12
1.56 0.12
1.56 0.12
1.55 0.13
1.47 0.13
1.56 0.13
1.59 0.13
1.66 0.09
1.40 0.12
1.44 0.12
13?Cs
pCi/1 ±2(7
6 9
2 7
1 9
7 5
1 6
-1 7
2 6
14 6
15 9
11 9
6 9
14 9
4 7
-3 6
7 9
5 9
-1 9
12 9
3 5
2 9
6 9
140Ba
pCi/1 ±2cr
-11 9
-6 8
-2 9
-4 5
1 6
-6 8
-4 6
-4 6
-5 9
-2 9
3 9
-1 9
-5 8
-6 8
-4 9
3 9
1 9
2 9
-4 6
-3 9
9 9
	 IsTj: 	
pCi/1 ±2(7
3 7
0 7
1 7
-3 6
1 5
7 7
4 5
7 5
0 7
9 7
5 7
3 7
5 7
-3 7
4 7
-1 7
5 7
9 7
-4 5
5 7
7 7
cr = Sigma Counting Error.

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           Table 12
Concentrations of Raclionuclides
      in Pasteurized Milk
         November 1989
Location
AL: MONTGOMERY
ARrLITTLE ROCK
AZ: PHOENIX
CA:LOS ANGELES
CA: SACRAMENTO
CO:DENVER
CT: HARTFORD
DE:WILMINGTON
FL: TAMPA
GA: ATLANTA
HI: HONOLULU
IA:DES MOINES
ID: IDAHO FALLS
IL: CHICAGO
IN:INDIANAPOLIS
KS:WICHITA
KY:LOUISVILLE
LA: NEW ORLEANS
MA: BOSTON
MD: BALTIMORE
ME: PORTLAND
MI: DETROIT
MI: GRAND RAPIDS
MN:MINNEAPOLIS
MN:ST. PAUL
MO:KANSAS CITY
MO: ST. LOUIS
MS: JACKSON
MT:HELENA
NC: CHARLOTTE
ND:MINOT
NE: OMAHA
NJ:TRENTON
NV:LAS VEGAS
NY: BUFFALO
NY: NEW YORK CITY
NY: SYRACUSE
Date
Collected
11/08/89
11/05/89
11/08/89
11/03/89
11/01/89
11/01/89
11/06/89
11/15/89
11/14/89
11/13/89
11/07/89
11/02/89
11/07/89
11/06/89
11/06/89
11/20/89
11/07/89
11/17/89
11/08/89
11/03/89
11/07/89
11/15/89
11/09/89
11/06/89
11/08/89
11/08/89
11/08/89
11/06/89
11/07/89
11/14/89
11/28/89
11/08/89
11/09/89
11/06/89
11/28/89
11/06/89
11/08/89
K
g/1 ±2
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                  Table 12 (continued)

            Concentrations of Radionuclides
                  in Pasteurized Milk

                     November 1989
Location
OH:CINCINNATI
OH: CLEVELAND
PA: PHILADELPHIA
PA: PITTSBURGH
PC: CRISTOBAL
PR:SAN JUAN
SD:RAPID CITY
TN: CHATTANOOGA
TN:KNOXVILLE
TN: MEMPHIS
TX: AUSTIN
WA: SEATTLE
WV: CHARLESTON
WY:LARAMIE
Date
Collected
11/13/89
11/14/89
11/06/89
11/06/89
11/21/89
11/14/89
11/01/89
11/06/89
11/06/89
11/27/89
11/06/89
11/01/89
11/13/89
11/07/89
K
g/1 ±2
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           Table 13
Concentrations of R.aclionuclides
      in Pasteurized Milk
          December 1989
Location
AL: MONTGOMERY
AR:LITTLE ROCK
AZ: PHOENIX
CA:LOS ANGELES
CA: SACRAMENTO
CA:SAN FRANCISCO
CO:DENVER
CT: HARTFORD
DE:WILMINGTON
FLrTAMPA
GA: ATLANTA
HI: HONOLULU
IA:DES MOINES
ID: IDAHO FALLS
IL:CHICAGO
IN: INDIANAPOLIS
KS:WICHITA
KY: LOUISVILLE
LA:NEW ORLEANS
MA:BOSTON
MD: BALTIMORE
ME: PORTLAND
MI:DETROIT
MI: GRAND RAPIDS
MN:MINNEAPOLIS
MN:ST. PAUL
MO:ST. LOUIS
MS: JACKSON
NC : CHARLOTTE
ND:MINOT
NE: OMAHA
NJ:TRENTON
NM: ALBUQUERQUE
NV:LAS VEGAS
NY: BUFFALO
NY: NEW YORK CITY
NY: SYRACUSE
Date
Collected
12/08/89
12/18/89
12/14/89
12/07/89
12/05/89
12/07/89
12/28/89
12/11/89
12/06/89
12/19/89
12/01/89
12/04/89
12/12/89
12/07/89
12/07/89
12/04/89
12/22/89
12/05/89
12/01/89
12/06/89
12/01/89
12/05/89
12/07/89
12/03/89
12/04/89
12/07/89
12/06/89
12/13/89
12/11/89
12/20/89
12/06/89
12/06/89
12/18/89
12/13/89
12/18/89
12/04/89
12/04/89
K
g/1 ±2
-------
                  Table 13 (continued)

            Concentrations of Radionuclides
                  in Pasteurized Milk

                      December 1989
Location
OH:CINCINNATI
OK: OKLAHOMA CITY
OR: PORTLAND
PA -.PHILADELPHIA
PA: PITTSBURGH
PR:SAN JUAN
SC: CHARLESTON
SD:RAPID CITY
TN: CHATTANOOGA
TX: AUSTIN
TX:FT. WORTH
VA: NORFOLK
WA: SEATTLE
WV: CHARLESTON
Date
Collected
12/29/89
12/18/89
12/06/89
12/04/89
12/04/89
12/08/89
12/14/89
12/06/89
12/11/89
12/04/89
12/29/89
12/01/89
12/01/89
12/13/89
K
g/1 ±2,7
1.31 0.12
1.33 0.12
1.59 0.09
1.49 0.13
1.62 0.12
1.36 0.12
1.38 0.12
1.50 0.08
1.52 0.12
1.55 0.12
1.52 0.09
1.51 0.08
1.59 0.12
1.43 0.22
iS7C8
pCi/1 ±2<7
2 9
5 9
0 5
8 9
3 7
3 9
6 9
1 6
0 7
2 7
3 6
4 6
0 7
0 14
140Ba
pCi/1 ±2<7
-2 9
-1 9
-2 6
-2 9
-4 8
-2 9
-5 9
-5 6
-7 8
-4 8
-1 6
-1 6
-7 8
0 19
	 T5T^
pCi/1 ±2cr
1 7
4 7
1 5
6 7
1 7
5 7
4 7
3 5
2 7
1 7
6 5
3 5
-3 7
7 15
(7 = Sigma Counting Error.
                            31

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                      Table 14

Strontium-90 and Strontium-89 in Pasteurized Milk
             EPA Regional Composites

                October  December 1989
EPA
Region
I
II
III
IV
V
VI
VII
VIII
IX
X
Date
10/06/89
10/06/89
10/12/89
10/08/89
10/09/89
10/06/89
10/10/89
10/09/89
10/05/89
10/04/89
90Sr
pCi/1 ±2(7
1.3 0.5
2.2 1.7
1.2 0.9
1.9 0.8
2.5 0.6
1.0 1.1
0.9 0.9
1.8 0.6
0.0 0.6
1.1 1.0
89Sr
pCi/1 ±2(7*
1 2
-1 6
2 3
0 3
-2 2
5 7
5 5
-1 4
4 4
3 7
          ff  = Sigma Counting Error.
          
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                                           Carbon-14 in Milk

     Nine stations, chosen for wide geographical distribution, contribute milk samples  for annual  analysis
of carbon-14.  These samples are monitored for carbon-14 levels in  the food  chain  resulting from nuclear
testing.  The pasteurized milk is  freeze-dried and the resulting powder is pelletized for ease of combustion.
Analysis consists of combusting the samples and converting the released carbon dioxide through a  series of
chemical conversions to benzene and finally measured by liquid scintillation.
     The samples undergo three main steps in the chemical conversions to benzene prior to liquid scintillation
counting. They include (1) combustion of the sample to carbon dioxide, (2) conversion of the carbon dioxide
to acetylene, and (3) trimerizations of the acetlyene to benzene. The last carbon-14 results were for  samples
collected during 1983-1986.  1982 and  March-May 1987.  They were published in Environmental Radiation
Data: Report 59.
                 Aljr.AFfl., Al. (90M2H) 300
     UU3 GOVERNMENT rnlNTINO OFFICE 1 990-.I a "ko I. 7 11 -0.)?/?(!?')? R'Klo
                                                   33

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    Environmental Radiation Data (ERD) is published quarterly (January,  April, July,  October) by the
U.S. Environmental Protection Agency's Office of Radiation Programs.
    Requests for information concerning publication and distribution of ERD should be directed to:

                                           Charles M. Petko
                                         Office of the Director
                         National Air and Radiation Environmental Laboratory
                                            1504 Avenue A
                                  Montgomery, Alabama  36115-2601

    Requests for information concerning the operation of ERAMS should be directed  to:

                                       Vicki Lloyd, Acting Chief
                               Monitoring and Analytical Services Branch
                         National Air and Radiation Environmental Laboratory
                                            1504 Avenue A
                                  Montgomery, Alabama  36115-2601
                                                or to:
                                         Robert S. Dyer, Chief
                              Environmental Studies and Statistics Branch
                               Analysis and Support Division (ANR-461)
                                U. S. Environmental Protection Agency
                                         Waterside Mall East
                                           401 M Street, SW
                                       Washington, DC  20460

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