The following health physics questions have been answered by an expert and approved by our editors for inclusion in our "Ask the Experts" feature. Click on the question to see the answer.
Questions in this Category Are in the Following Subcategories:
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| • Building and Construction Material |
| • Fallout |
| • Food, Plants, Animals |
| • General |
| • Geological Formation, Ores |
| • In the Body |
| • Sampling |
| • Soil |
| • Water |
| • Naturally Occurring Radioactive Material (NORM) |
| • Aircraft and Space Radiation |
| • Environmental Software |
| • Miscellaneous |
| |
Building and Construction Material
|
| Q25 |
– |
Will phosphogypsum have an ill effect if used for plasterboard? |
| Q247 |
– |
Radioactivity of fire brick |
| Q456 |
– |
Natural radioactivity in plasterboard |
| Q629 |
– |
Phosphogypsum |
| Q1852 |
– |
Phosphogypsum in roadbeds |
| Q1898 |
– |
Radium deposits in a structure |
| Q3121 |
– |
Fly ash |
| Q5434 |
– |
Radium equivalent activity |
| Q5868 |
– |
Concrete for shielding |
| Q5888 |
– |
Granite countertops |
| Q6058 |
– |
Uranium in tiles |
| Q6969 |
– |
Granite counter tops |
| |
Fallout
|
| Q966 |
– |
Fallout in Guam |
| Q1030 |
– |
Fallout in the Pacific |
| Q1757 |
– |
Fallout studies |
| Q4099 |
– |
Measuring radiation levels in Belarus |
| Q4140 |
– |
Contamination in groundwater |
| |
Food, Plants, Animals
|
| Q36 |
– |
What is the normal C-14 content for pine trees in California? |
| Q1147 |
– |
Peanuts and radioactivity |
| Q1946 |
– |
Food with high radioactivity |
| Q3137 |
– |
Doses from cigarette smoking |
| Q4806 |
– |
Psyllium fiber |
| Q5181 |
– |
Table salt |
| Q5929 |
– |
Stainless steel cookware |
| Q5944 |
– |
Naturally radioactive foods |
| Q6254 |
– |
Salt substitute and potassium-40 |
| |
General
|
| Q88 |
– |
What is the rate of natural background radiation? |
| Q133 |
– |
Should I be concerned about aircraft gauges becoming radioactive? |
| Q178 |
– |
What is the daily dose of natural background radiation? |
| Q192 |
– |
Is it safe to use a Class II safety cabinet to handle radioactive powders? |
| Q210 |
– |
How do I determine background radiation levels? |
| Q682 |
– |
Environmental monitoring training |
| Q689 |
– |
Background levels for various states |
| Q824 |
– |
Radiation in everyday life |
| Q909 |
– |
Hunters Point Naval Shipyard |
| Q922 |
– |
Correlation between background radiation and cancer |
| Q943 |
– |
Adverse impacts due to natural radiation |
| Q979 |
– |
Naturally occurring radioactive materials |
| Q1044 |
– |
What are the levels of background radiation throughout the United States? |
| Q1163 |
– |
Reporting method |
| Q1322 |
– |
What is cosmic radiation? |
| Q1471 |
– |
Thorium calculations |
| Q1637 |
– |
Old thorium nitrate |
| Q1640 |
– |
Body exposure to background radiation |
| Q1880 |
– |
Radiation from coal ash |
| Q3509 |
– |
Neutron background levels |
| Q4886 |
– |
Are nuclear events induced by lightning? |
| Q5231 |
– |
Old hospital used for living space |
| Q5554 |
– |
Fluctuations of background doses |
| Q5697 |
– |
Background radiation in various countries |
| |
Geological Formation, Ores
|
| Q185 |
– |
What are the risks of playing on an abandoned uranium mine? |
| Q343 |
– |
Orphan Mine, Grand Canyon |
| Q1825 |
– |
Radioactive rock |
| Q1952 |
– |
Fossils and uranium |
| Q2345 |
– |
PPM in rocks |
| Q2842 |
– |
Grand Canyon mine |
| Q2867 |
– |
Center of the Earth |
| Q5847 |
– |
Hazards of pitchblende |
| Q5970 |
– |
Sniffed autunite sample |
| |
In the Body
|
| Q187 |
– |
Can you measure radioactivity in your body? |
| Q322 |
– |
How much potassium-40 and carbon-14 are in the human body? |
| Q1617 |
– |
Radiation from humans |
| Q3413 |
– |
Strontium-90 |
| |
Sampling
|
| Q262 |
– |
Sampling contaminated ground water |
| Q3752 |
– |
Radon daughter contamination |
| |
Soil
|
| Q159 |
– |
Is there data on the absorption and desorption rates for T20? |
| Q599 |
– |
Is radioactive soil a threat to health? |
| Q985 |
– |
Plutonium in soils in New Mexico |
| Q2304 |
– |
Soil radioactivity research |
| Q5488 |
– |
Background due to accidents and nuclear testing |
| Q5680 |
– |
Background on Vypeen Island, India |
| Q6510 |
– |
High radioactivity in Baku, Azerbaijan |
| |
Water
|
| Q184 |
– |
Can bleeding ulcers be caused by 6.0 pCi/L radium-226? |
| Q258 |
– |
When showering, is there a skin contamination problem from radioactivity ? |
| Q639 |
– |
Radium in drinking water |
| Q724 |
– |
Plutonium in water |
| Q729 |
– |
Correlation between radon and radium in water |
| Q1143 |
– |
Would blasting affect uranium in water? |
| Q1211 |
– |
Radium in drinking water |
| Q1379 |
– |
Uranium in drinking water |
| Q2377 |
– |
Radium in city water |
| Q2816 |
– |
Uranium-laden ion exchange resin |
| Q3383 |
– |
Radium in Drinking Water |
| Q3399 |
– |
Risk from Radium in Water |
| Q4676 |
– |
Groundwater-Storm-water levels |
| Q4860 |
– |
Removal of radionuclides |
| Q5873 |
– |
Uranium in drinking water |
| Q6525 |
– |
Water flow causing radiation in building |
| |
Naturally Occurring Radioactive Material (NORM)
|
| Q179 |
– |
I would like information on radium zinc sulfite. |
| Q482 |
– |
What is the MAC for potassium-40? |
| Q573 |
– |
Is Autunite dangerous? |
| Q620 |
– |
Cerium oxide |
| Q661 |
– |
Naturally occurring radioactive elements |
| Q681 |
– |
Radioactivity of hafnium |
| Q933 |
– |
Natural elements |
| Q1009 |
– |
What is NORM? |
| Q1348 |
– |
NORM Scale Production |
| Q1435 |
– |
Is platinum radioactive? |
| Q1449 |
– |
Autunite |
| Q1606 |
– |
NORM limits |
| Q1835 |
– |
NORM guidelines |
| Q2298 |
– |
Release of radon from deep mines |
| Q2494 |
– |
Disposal/Treatment of NORM with Cerium Ammonium Nitrate and Cerium Chloride |
| Q2596 |
– |
Thorium Nitrate as Chemical Reagent |
| Q3056 |
– |
High-grade uranium ore |
| Q3274 |
– |
Definition of NORM |
| Q3470 |
– |
Plutonium in Petroleum |
| Q3536 |
– |
Relate µR/hr and pCi/g |
| Q3579 |
– |
Old vase |
| Q4734 |
– |
Earthquakes and background radiation |
| Q5207 |
– |
Gas lantern mantle |
| Q5650 |
– |
Possession of thorium nitrate reagent |
| Q7501 |
– |
Use of samarium powder |
| |
Aircraft and Space Radiation
|
| Q104 |
– |
What doses are received in space? |
| Q160 |
– |
I would like information on radiation on other planets in our solar system. |
| Q396 |
– |
Proton radiation in space |
| Q444 |
– |
What is my radiation exposure while flying? |
| Q627 |
– |
Doses to astronauts |
| Q753 |
– |
Moon astronauts |
| Q789 |
– |
In-flight radiation information |
| Q791 |
– |
Exposures to astronauts |
| Q941 |
– |
Risks of becoming an airline pilot |
| Q1161 |
– |
Pilot flying polar routes |
| Q1266 |
– |
Solar flare radiation |
| Q1524 |
– |
Altitude effects |
| Q1549 |
– |
Radiation on the moon and Mars |
| Q1764 |
– |
Flying below 6,000 feet |
| Q1834 |
– |
Flying and cancer |
| Q1930 |
– |
Solar flares |
| Q1983 |
– |
Lead blankets |
| Q2120 |
– |
Is it safe to nurse? |
| Q2161 |
– |
Space radiation effects |
| Q2256 |
– |
Fertility |
| Q2316 |
– |
Ultraviolet exposure |
| Q2821 |
– |
Shielding on the moon |
| Q2851 |
– |
Flying limit for children |
| Q2909 |
– |
Small Planes |
| Q3168 |
– |
Flying after radiation treatment |
| Q4488 |
– |
Newborn traveling |
| Q4856 |
– |
Radiation shielding in space |
| Q4918 |
– |
Pilot wants to monitor exposures |
| Q5647 |
– |
Measure flight radiation |
| Q6080 |
– |
Radiation exposure to children flying |
| Q6801 |
– |
Commercial airline exposure |
| Q6900 |
– |
Flying in ninth week of pregnancy |
| Q7221 |
– |
Solar storms/cosmic rays |
| |
Environmental Software
|
| Q103 |
– |
Where can I get a program called HotSpot? |
| Q329 |
– |
I need a radioactive materials inventory program. |
| Q364 |
– |
Modeling codes for airborne releases |
| Q373 |
– |
Software packages for isotope tracking |
| |
Miscellaneous
|
| Q5349 |
– |
Radiation levels around the globe |
| Q7178 |
– |
Variations in cosmic radiation |
