DOE CORE 1.05 SOURCES OF
RADIATION Q AND A
Whichbvofbvthebvfollowingbvsourcesbvofbvnaturalbvandbvman-
madebvradiationbvcontributesbvthebvlargestbvaveragebvdosebvtobvgeneralbvpopulationbvdos
esbvinbvthebvU.S.?bv-bvanswer--Medicalbvexposures
Thebvaveragebvannualbveffectivebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebv
U.S.bvfrombvinhaledbvradionuclidesbv(primarilybvradon)bvasbvpartbvofbvnaturalbvbackgroundb
vradiationbvsourcesbvisbv__________bvmrem.bv-bvanswer--200
ThebvaveragebvdosebvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnuclearbvfacilitiesbv
asbvpartbvofbvman-
madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv____________bvmrem/
year.bv-bvanswer--Lessbvthanbv1
ThebvaveragebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnatura
lbvterrestrialbvbackgroundbvradiationbvisbvapproximatelybv__________bvmrem/year.bv-
bvanswer--28
Whichbvofbvthebvfollowingbvsourcesbvofbvnaturalbvandbvman-
madebvbackgroundbvradiationbvcontributesbvthebvsmallestbvaveragebvdosebvtobvgeneralbvp
opulationbvdosesbvinbvthebvU.S.?bv-bvanswer--Nuclearbvreactors
Thebvfactorbvwhichbvcontributesbvthebvgreatestbvvariabilitybvinbvdosebvfrombvnaturalbvterrest
rialbvbackgroundbvradiationbvis:bv-bvanswer--geology
Thebvtwobvelementsbvwhosebvradionuclidesbvarebvgenerallybvconsideredbvtobvbebvthebvgre
atestbvcontributorsbvofbvdosebvequivalentbvfrombvnaturalbvterrestrialbvbackgroundbvradiatio
nbvsourcesbvare:bv-bvanswer--uraniumbvandbvthorium
ThebvaveragebvdosebvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvconsumerbvprodu
ctsbvasbvpartbvofbvman-
madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv________bvmrem/year.bv-
bvanswer--10
ThebvaveragebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnatura
lbvcosmicbvbackgroundbvradiationbvisbvapproximatelybv__________bvmrem/year.bv-
bvanswer--27
ThebvaveragebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnatura
lbvinternalbvemitterbv(foodbvchain)bvbackgroundbvradiationbvisbvapproximatelybv_________
_bvmrem/year.bv-bvanswer--39
Thebvfactorbvwhichbvcontributesbvthebvgreatestbvvariabilitybvinbvdosebvfrombvnaturalbvcosmi
cbvbackgroundbvradiationbvis:bv-bvanswer--altitude
RADIATION Q AND A
Whichbvofbvthebvfollowingbvsourcesbvofbvnaturalbvandbvman-
madebvradiationbvcontributesbvthebvlargestbvaveragebvdosebvtobvgeneralbvpopulationbvdos
esbvinbvthebvU.S.?bv-bvanswer--Medicalbvexposures
Thebvaveragebvannualbveffectivebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebv
U.S.bvfrombvinhaledbvradionuclidesbv(primarilybvradon)bvasbvpartbvofbvnaturalbvbackgroundb
vradiationbvsourcesbvisbv__________bvmrem.bv-bvanswer--200
ThebvaveragebvdosebvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnuclearbvfacilitiesbv
asbvpartbvofbvman-
madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv____________bvmrem/
year.bv-bvanswer--Lessbvthanbv1
ThebvaveragebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnatura
lbvterrestrialbvbackgroundbvradiationbvisbvapproximatelybv__________bvmrem/year.bv-
bvanswer--28
Whichbvofbvthebvfollowingbvsourcesbvofbvnaturalbvandbvman-
madebvbackgroundbvradiationbvcontributesbvthebvsmallestbvaveragebvdosebvtobvgeneralbvp
opulationbvdosesbvinbvthebvU.S.?bv-bvanswer--Nuclearbvreactors
Thebvfactorbvwhichbvcontributesbvthebvgreatestbvvariabilitybvinbvdosebvfrombvnaturalbvterrest
rialbvbackgroundbvradiationbvis:bv-bvanswer--geology
Thebvtwobvelementsbvwhosebvradionuclidesbvarebvgenerallybvconsideredbvtobvbebvthebvgre
atestbvcontributorsbvofbvdosebvequivalentbvfrombvnaturalbvterrestrialbvbackgroundbvradiatio
nbvsourcesbvare:bv-bvanswer--uraniumbvandbvthorium
ThebvaveragebvdosebvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvconsumerbvprodu
ctsbvasbvpartbvofbvman-
madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv________bvmrem/year.bv-
bvanswer--10
ThebvaveragebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnatura
lbvcosmicbvbackgroundbvradiationbvisbvapproximatelybv__________bvmrem/year.bv-
bvanswer--27
ThebvaveragebvdosebvequivalentbvtobvthebvgeneralbvpopulationbvofbvthebvU.S.bvfrombvnatura
lbvinternalbvemitterbv(foodbvchain)bvbackgroundbvradiationbvisbvapproximatelybv_________
_bvmrem/year.bv-bvanswer--39
Thebvfactorbvwhichbvcontributesbvthebvgreatestbvvariabilitybvinbvdosebvfrombvnaturalbvcosmi
cbvbackgroundbvradiationbvis:bv-bvanswer--altitude
