HOME   WISE Uranium Project   >   Calculators   >

Uranium Mine and Mill Resident Individual Dose Calculator

(last updated 16 Jun 2011)
Requires Netscape 3.0, Internet Explorer 3.0 or higher. JavaScript must be enabled.
For educational purposes only. No warranty.
For optional viewing of the results in chart form, Netscape 4.0, Internet Explorer 4.0 or higher is required, and Java must be enabled (uses Java applet tChart external link).

Calculate individual dose and health risks from inhalation of radon and uranium dust to residents living near uranium mines, mills, and mill tailings.

Enter a value into any one field of the Material Balance and click the "Calculate" button below. HELP new window
"t" means metric tonne.

Your browser does not support JavaScript, or you have disabled it.
The Calculator won't work.
Enable JavaScript (Preferences Menu) and reload the page.

 

Material Balance
 ProductWaste
Uranium Mineannual t/a Ore (= t/a U) t/a Waste Rock
total t Ore (= t U) t Waste Rock
Uranium Millannual t/a U3O8 (= t/a U) t/a Mill Tailings
total t U3O8 (= t U) t Mill Tailings

Lifetime Dose and Health Risk Summary
SourceLifetime Dose [mSv]Lifetime Cancer Risk
in operationafter shutdowntotal[%]1:
Mine 
Mill 
Mill Tailings
Total

Lifetime Dose Summary Charts

Java is not enabled.
For optional viewing of the dose rate summary in chart form, enable Java and reload page.
(Netscape 4.0, Internet Explorer 4.0 or higher required)

In case the calculator does not work properly after using the Reload button, retype the URL in the location field.

Annual Dose Summary
SourceDose Rate [mSv/a]
in operationafter shutdown
DustRadonTotalDustRadonTotal
Mine   
Mill   
Mill Tailings
Total    

Average Air Concentration at Resident's Location
SourceU-238 [µBq/m3]Rn-222 [Bq/m3 EEC]
in ore dustin U3O8 dustin tailings dust
in operationin operationin operationafter shutdownin operationafter shutdown
Mine    
Mill   
Mill Tailings  
Total

Source Term
SourceU-238 [MBq/a]Radon-222 [TBq/a]
in ore dustin U3O8 dustin tailings dust
in operationin operationin operationafter shutdownin operationafter shutdown
Mine    
Mill   
Mill Tailings  
Total

Dimensions
Exposed tailings area (in operation): ha
Total tailings surface area (after shutdown): ha

Show charts of lifetime dose vs. distance and wind direction

 

 

Radon-222 Release Rate from Tailings
barecovered
(radon retention: %)		U.S. EPA Standard
(40 CFR 192)
Bq/m2s   Bq/m2s   0.74 Bq/m2s

     Health Risk Parameters     

Sample parameter set:  

Mine new window Operational Life of Mine (and Mill): years
Specific Radon Emission: GBq/t U3O8
Specific Ore Dust Emission: g/t ore mined
Effective Release Height: m
Mill new window Specific Radon Emission: GBq/t U3O8
Specific Ore Dust Emission: g/t ore milled
Specific U3O8 Dust Emission: g/t U3O8 produced
Effective Release Height: m
Mill Tailings new window
Deposit new window		 Tailings Thickness: m  ·  Tailings Density: g/cm3
Specific Radon Exhalation Rate: Bq/m2s per BqRa-226/g
Specific Tailings Dust Emission Rate: g/(m2d)
Effective Release Height: m
Percentage of tailings area exposed during mill operation: %
Time to Final Cover Installation: years
Cover: Radon Retention: %   - or -   Radon Release Rate Limit: Bq/m2s
Common Data new window Distance of Resident from Mine/Mill/Tailings: km
Mixing Layer Height: m
Annual Precipitation: cm (used in precise mode only)
Radon Progeny Equilibrium Fraction: (used in fast mode only)
Air Dispersion Calculation Mode: Fast   Precise (recommended)

  Fractional Frequency of Wind Speed Classes  
Sector (wind from):  
Sta-
bility
Class		Average Wind Speed [m/s]
A%%%%%%
B%%%%%%
C%%%%%%
D%%%%%%
E%%%%%%
F%%%%%%
This is 1 out of wind direction sectors
General Data new window Radon Dose Factor: nSv/h per Bq/m3 EEC
Uranium Inhalation Dose Factor (natural uranium with progeny): µSv/Bq U-238
Uranium Inhalation Dose Factor (pure natural uranium): µSv/Bq U-238
Breathing rate (public): m3/h
Radiation Risk Factor: per Sv
Lifetime: years

    Process Parameters    
Ore Deposit Waste/Ore Ratio:  ·  Ore Grade: % U
Mill Extraction Losses: %

> See also:

 

HOME   WISE Uranium Project   >   Calculators   >