[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Radon Gas Poses Danger to Cavers
Taken from: http://dailynews.yahoo.com/h/nm/20000405/sc/health_radon_1.html
Any idea what the "recommended annual general safety limit" might be?
Cary
hp@isotopeproducts.com
Science Headlines
Sources: Reuters | AP | Full Coverage
Wednesday April 5 3:24 PM ET
Magazine: Radon Gas Poses Danger to Cavers
LONDON (Reuters) - Caving enthusiasts who spend as little as 40 hours a
year exploring underground could be exposing themselves to health risks
from the
radioactive gas radon.
New Scientist magazine said Wednesday that cavers could be receiving
radiation dosages as much as four times the recommended annual general
safety limit.
``It is important that cavers are made aware of the radiation levels so
that they can decide to restrict their activities,'' Malcolm Sperrin, of
Princess Margaret Hospital
in Swindon, southern England told the magazine.
Sperrin and researchers at the University College Northampton measured
random levels in popular caving areas in southwest England.
Radon is produced when uranium found naturally in rocks and soil breaks
down. It disperses very quickly in the open air but can become concentrated
in closed
areas, such as caves.
Studies of miners exposed to radon have shown an increased risk of lung
cancer.
begin 600 WINMAIL.DAT
M>)\^(@X/`0:0" `$```````!``$``0>0!@`(````Y 0```````#H``$(@ <`
M& ```$E032Y-:6-R;W-O9G0@36%I;"Y.;W1E`#$(`0V ! `"`````@`"``$$
MD 8`Z $```$````0`````P``, (````+``\.``````(!_P\!````5P``````
M``"!*Q^DOJ,0&9UN`-T!#U0"`````')A9'-A9F5 <F]M=6QU<RYE:',N=6EU
M8RYE9'4`4TU44 !R861S869E0')O;75L=7,N96AS+G5I=6,N961U```>``(P
M`0````4```!33510`````!X``S !````'0```')A9'-A9F5 <F]M=6QU<RYE
M:',N=6EU8RYE9'4``````P`5# $````#`/X/!@```!X``3 !````'P```"=R
M861S869E0')O;75L=7,N96AS+G5I=6,N961U)P```@$+, $````B````4TU4
M4#I20413049%0%)/355,55,N14A3+E5)54,N1415`````P``.0`````+`$ Z
M`0```!X`]E\!````'0```')A9'-A9F5 <F]M=6QU<RYE:',N=6EU8RYE9'4`
M`````@'W7P$```!7`````````($K'Z2^HQ 9G6X`W0$/5 (`````<F%D<V%F
M94!R;VUU;'5S+F5H<RYU:75C+F5D=0!33510`')A9'-A9F5 <F]M=6QU<RYE
M:',N=6EU8RYE9'4```,`_5\!`````P#_7P`````"`?8/`0````0````````"
M^7 !!( !`"$```!2861O;B!'87,@4&]S97,@1&%N9V5R('1O($-A=F5R<P!1
M"P$%@ ,`#@```- '! `&``@`)@`#``0`%@$!(( #``X```#0!P0`!@`(`"0`
M(P`$`#0!`0F `0`A````,$4Y.#<U,41&.#!!1#0Q,3DQ.$0P,$$P,C0X,C4W
M03,`]P8!`Y &`'@,```A````"P`"``$````+`",```````,`)@``````"P`I
M```````#`"X```````,`-@``````0 `Y`"!$J!C>G[\!'@!P``$````A````
M4F%D;VX@1V%S(%!O<V5S($1A;F=E<B!T;R!#879E<G,``````@%Q``$````6
M`````;^?WA<F'768$PKX$=21C0"@)()7HP``'@`># $````%````4TU44 ``
M```>`!\,`0```!<```!H<$!I<V]T;W!E<')O9'5C=',N8V]M```#``80HJ@A
M: ,`!Q .! ``'@`($ $```!E````5$%+14Y&4D]-.DA45% Z+R]$04E,64Y%
M5U-904A/3T-/32](+TY-+S(P,# P-# U+U-#+TA%04Q42%)!1$].,4A434Q!
M3EE)1$5!5TA!5%1(12)214-/34U%3D1%1$%.3E5!3 `````"`0D0`0```%,)
M``!/"0``-!,``$Q:1G5E$%#0`P`*`')C<&<Q,C5R,@Q@8S$#, $'"V!ND0X0
M,#,S#Q9F90^23P'W`J0#8P(`8V@*P'.$970"T7!R<3(``)(J"J%N;Q)0(# !
MT(4!T#8/H# U,#04(?,!T!00-'T';0*#`% #U/L1_Q,+8A/A%% 3LACT%-"O
M!Q,"@ *1".8["6\P&M_Z90XP-1P*'2$<WQWI&_3_'A(<?R!/( T?CQV_' \0
M8/PR."7:)O$FKR>Y&_0GXK\F3RH?*=TI7R>/*U0Y#E ?+J0P`2@C, `"@G-T
M>>IL!Y!H">!T```34 /P4&1C=&P*L5PR6&&89&IU,7 %$&=H!4([%C(,`6,)
MP#)@`S!S;GQE>!<P![ %L # `G-SL0!0<V(R%% Q8&$3\/1<:PG@< N0,C\R
MHPA@ZS*0"X!E,:!V.6 !0#.;OPPP-&0H`#= !* +@&<G\>DTYF)A%Q!D`B U
MH#5&YS'0,Y [D2 Q,3,.4#:?_S>O.+\`43G\`* T;CQ_/8;_,20/P#Z//Y]
MKPY0.>]##]M$'SVS,P*"$Q!C-F!+H9,SD#VP=&DYD"!$`1"H875L!4!0"L!A
M"<#@87!H($8"(38D)4#H9FDM#Y X`4 Y,% SZT</,J-B"R!R"5!24A:@V5)2
M=S0E01<`< '037)_,[]*GTNF3]!.D 40`C M0T\P`V$Z(%1O5[!3*'5B:@60
M=%>P1&'H=&4Z-B0V3_]1#U(?_U,O5#DQP#VC#B%+H3JV#E";56]6?E(Y@1<!
M($@]D?L$D#8D-UEO6G];CUR=.0\O7;\/D&EP"-!B"K!T./])^@]41A!?OV#&
M:@!AT M0O'DO3T!<L L18D5S-B3_* !C/V1/95]<KU1/:U]L;^]M=5?25W18
MJ3EOOS,_`S =:;,Y<Y]TKWJ@1&]C_G4'@ (P!=!/`$S6<J1-M6,,8 E08V8R
M>ZA-44CL>7 $D&=Q:QH!>-)X,/=X<'%1`8!N6# `8 GP3:#O?0`"`37@7E)E
M`/!]`#& 2X!@#E!V")!W:PN 9-]K0(/"!/ '0!!@,P!0@\+\>FL.4 X`<2(]
M@H6E`A#>;P5"%R$2\EC ;0M16,"@($,Z7%Q7`&].X=YM3S #$ >0B%!-#> #
M8.1S;P& ($\!( W@@Q!:7(H&10# `Q N2W!TWX#P%Q!X<#4A9W)X`4""(=YN
M,= :\(ND3C1C`R 2\_,`@ 60;'9!H4;0#G UX/^.,@&0`"".PH01?4$!P8XQ
M/Q;@#W ``$;0#- !D" N_QH2CBB%D8[Q3G!XP(]?D&]_D7\/P$;0!8&3'Y0O
ME3]LNVM 1M!LDM^7GYBE*9&LCR5 EG^;7YB48B H`I'_G'^.<UE0FB^>[Y__
MH0^.H/]C$*)2CR^COZ3/D:PH`*)?_Z??J.^I_XZ@> "FWZQOK7\_KH0*^0,P
M>"]Y/WK->U1^84:@`Z #4E>P`I((D&Q^9!+R#T ]L3%PC?!B0%F 4$523$E.
M2SUP00) <#HO+V2+(7E#-6"$D"YY86B&T"[!!:!M+V@O;KN0`=![:7$442\$
M\+N@/9!.<&A&7T[ 2W%?,2ZV$&W_`R "D!+RNG !D+@S.I$+@ $4$2 `T,GJ
M>?D`NLX1C((`J@"@2ZD+`@# H!? H2) P*%H`'3!87 `"#H`+\'A9 !A``!I
M`&P`>0!N`(!E`'<`<P`NPJ%;PE#!4&_#P<-08\/!;1_!X<%0P?#"T,1R,@`P
M]<5E-,5A-<'APS#$,,22'\+PPE#"D,%PP5!?`'+?PD'",,/0PM#'D#'#0<%2
MU\1PPI# H."_K8#!+\(__\-/Q%_%;\9_QX_(FAH0`I+_N& 7`$YQ",$+\G\5
MN@^['Q^\+[TZTI(*A0J%06YYYB"T4#V0('<6X 5 O0#G?N&X8 )@<76&X!.
M&O!_U;%],0$`-2 `<([P!T @_F<)\ 20W"%&4(<AV7!G<&YM3< `$-J7(-U@
MM@)B5&4_V'Q#"L!Y"H5H['! ! "&X&^ 8!=P!'#]#G!TU3#5L=A\"H6S1+0/
MT[4?N2%38PB0;HI 8D/]9W)S"H7G3^A?Z6_J?^N/;^R?[:_N`PJ%4PAABD!S
M7U>P8<%G4&(!WC!\WC!!^E#PDT9.8 ,@"%!A\4[0>]XAV'Q7"8#FL=2PV7!!
M9Q=P`Q%6X#,Z1A!.D$T8($54XCU]@&=A>LMG@5>P4KU"($=+0$Z0OQ-A!"!8
MH ]P!)#:(&_?L<-A\MA\3$].1/E@K?!Y\"4I(%=0^!$]PGU!:/^UL <P,7 $
M(-G@]_!R@((A_]O0!"!G< ) ,:#\0A10/7#W"&$$()CP>3V0!< U< M0ZP6P
M/<)UL/%R"< (8/PA_P6@3F U(-ZP_A(38#W"VC'_@L!GX&?0!"#WX=<$VQ $
M`#YK!" 1DMHB"H6],6EOOF'C\$WB]?#]D+TS+MA\_P?"Y=--T+D1BQ#U]-S!
M-1%_\RB]`-H!A+!A\O]XVR%E_TW@/<(#0EBP`W"S\$MP1E#WW%#]D?V0;0YP
M3R#VX1#0__UPVB 5`]HRVR_</]U#!)WX8&!)AO 6@-F A\ :@?\5P-H2" C]
M\!. BQ"Q``U _VV1&$")P Q$">=GL_V0B;#_!]3:,=EPA+ *45A0V9'WTN\:
M\+7"X_#:(FGUL .33<'Q`2 L)R?UP:M@&F"(T/93@&%7$2P2LE<"[\']D*_U
MT/\`$=&&\$CW('!-P/>$P. %L^%3X\"",$N &+#OB;!G4(S1L_!%7J!JT34@
M_^#0OM':,@9F!)T810U!-2#?%?']X0M $9/:%%6PT&'R[TW V7#QH/%P9?(!
M-<$'X?^'P.#0L_ ,X$M _7 -(4[ WQMQB- 3U;/A`#!P?Q#]\;\(,3W"$='V
MX;/A&]-W%@'_'%8$G?9T$$'A% TAV>"W<;O]<&K@:7T@"Y+\(6Y8L-\I4?%P
MV7&S\(F08P(A'*)_B;#S\7$@/9 "(8$Q!( @_Q 1/;#[\6(1_9!A\=EPW>!]
MB7!K*J3:,N#A'T$6L6+_9U 5`]ZPX:&($/^ YA&RP+].P%C -2"SX8W0]R%D
MX 7_)5,;L0LU"#+5,!X-*E ]L/\!(1+!WE -X?V0`!,-(17"__:#$2!-\8+0
M+'$-01L!K_#O(M$C(@(!$K)L_L ]X!41_8I <BR@XK_CS^3>.5\Z;Q,[?SR%
M?0! , `#`! 0``````,`$1 !`````P" $/____] ``<P8/82Y-V?OP% ``@P
M8/82Y-V?OP$+``" "" &``````# ````````1@`````#A0````````,``H (
M( 8``````, ```````!&`````!"%`````````P`%@ @@!@``````P ``````
M`$8`````4H4``+<-```>`"6 "" &``````# ````````1@````!4A0```0``
M``0````X+C ``P`F@ @@!@``````P ```````$8``````84````````+`"^
M"" &``````# ````````1@`````.A0````````,`,( (( 8``````, `````
M``!&`````!&%`````````P`R@ @@!@``````P ```````$8`````&(4`````
M```>`$& "" &``````# ````````1@`````VA0```0````$`````````'@!"
M@ @@!@``````P ```````$8`````-X4```$````!`````````!X`0X (( 8`
M`````, ```````!&`````#B%```!`````0`````````>`#T``0````$`````
-`````P`--/TW```97P``
`
end
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html