$BF`NI;~Be(B8
$BJ?0B;~Be(B8
$BCf@$(B8
$B7DD9(B 6$B!J(B1601$B!K(B
8
$B1d5}(B 5$B!J(B1748$B!K(B
$B42@/(B 2$B!J(B1790$B!K(B
1800$B:"!A(B
$BJ85W(B 4$B!J(B1864$B!K(B
$BL@<#(B 6$B!J(B1873$B!K(B
21$B!J(B1888$B!K(B
22$B!J(B1889$B!K(B
34$B!J(B1901$B!K(B
40$B!J(B1907$B!K(B
$BL@<#Kv(B
$BBg@5(B 3$B!J(B1914$B!K(B
10$B!J(B1921$B!K(B
12$B!J(B1923$B!K(B8
15$B!J(B1926$B!K(B
$B>24$B!J(B1949$B!K(B9
27$B!J(B1952$B!K(B
29$B!J(B1954$B!K(B
7/1
30$B!J(B1955$B!K(B7/29
32$B!J(B1957$B!K(B10/10
35$B!J(B1960$B!K(B
36$B!J(B1961$B!K(B6/15
$B!y(B 6/21
37$B!J(B1962$B!K(B
39$B!J(B1964$B!K(B9/16
40$B!J(B1965$B!K(B12
41$B!J(B1966$B!K(B3/31
$B!y(B 4/1
$B!y(B 10/18
42$B!J(B1967$B!K(B5
$B!y(B 7/1
43$B!J(B1968$B!K(B3
44(1969)
12
45$B!J(B1970$B!K(B4/18
48$B!J(B1973$B!K(B6/14
8/5
8/21
9/20
10/25
11/11
12
12/12
49$B!J(B1974$B!K(B9
50$B!J(B1975$B!K(B1/17
2/21
2/27
$B=U!A=)(B
5
5/29
9
10/16
11/16
51$B!J(B1976$B!K(B2/7-8
4/10
5/13
5/29-30
6/13
7/11
8/21-22
52$B!J(B1977$B!K(B1/20
3/5
5/6-7
6/19
8
8/20-21
10/9
53$B!J(B1978$B!K(B3/20-21
3/24
5/29
7/23
8/19-20
10/7
11
54$B!J(B1979$B!K(B5/5-6
6
8/19
9/31
11/28
55$B!J(B1980$B!K(B7/5
8/29-30
56$B!J(B1981$B!K(B8/22-23
11/5-6
12/1
58$B!J(B1983$B!K(B2
4/30
8/20-21
59$B!J(B1984$B!K(B6/20
11/17-18
60$B!J(B1985$B!K(B5
8/11
9/21-23
12/4-20
12
61$B!J(B1986$B!K(B5/18
9/21
12/8
12
62$B!J(B1987$B!K(B1/20
10/21
11/2
63$B!J(B1988$B!K(B1/8
4/13
$BJ?@.(B 2$B!J(B1989$B!K(B11
$BJ?@.(B17 (2005) 7/4
$BJ?@.(B20 (2008) 8/8
$BJ?@.(B20 (2008) 9
$BJ?@.(B22 (2010) 2 | $B8E$/$O!V2D8EG=Eg(B($B$+$3$N$7$^(B)$B!W$NCOL>$GCN$i$l$k(B($BK|MU=84,;0!"3AK\?MK{(B)
$B9b:=8f?_>1(B($BD+Dn$XA/5{$rJtG<$9$kB<(B)$B$NL>$GCN$i$l$k(B($B647,N,5-(B)
$B9b:=$O<~Ka!"J!Gq!"9>8M:j$H6&$KGEKa8^Gq$N0l$D$K?t$($i$l$k(B
$BCSED51@/?79b:=9A7z@_$KCe0$LoI.!V3$IM?^!W$,9b:=?@EN$KJtG<$5$l$k(B($B8=B8(B)
$B=iBe9)3Z(B($B$/$i$/(B)$B>>%qLg30MN9R3$MQHAI[$rH/L@$7!"%(%H%m%UEgC58!(B
$B9)3Z>>%qLg!";0Be$K$o$?$jGH;_(B($B$O$H(B)$B!"C9J](B($B$?$s$]!"=.$@$^$j(B)$B!"?7ED$rB$@.(B
$B9b:=9AC[9A(B
$BCOAE2~@5;O$^$k!"$3$N;~!"3$IM$NB?$/$O;(bJ%KB@S3t<02qEN@>H*$K@_N)!"Ev;~D.D9$O>>K\MxJ?;a(B
$B9qM-CO$@$C$?3$JU$,>>K\55B@O:=jM-$H$J$k(B
$BHx>e9b:=4V$K;dE4GE=#E4F;3+DL(B($B$=$N8e9qE49b:=@~!"8=:_$OGQ;_(B)
$B8xM-?eLLKdN)K!$,8xI[!"MbG/;\9T$5$l$k(B
$BL@I1EEbKB?M8(9)>l@_CV(B
$B>bKB?M8(9)>l!">bJ%2=3X$H$7$FFHN)(B
$B$3$N:"$h$j3$?eMa>l$N1x@w$,$a$@$A;O$a$k(B
$B>b2=(BPCB$B@=B$3+;O(B
$B9b:=D.!"9S0fB:,D.!"9gJ;$7$F9b:=;T$H$J$k(B $B$=$N8e!"JFEDD.$N0lIt!"0$LoBKBlM6CW>rNa$r;\9T(B
$BGEKaNW3$9)6HCOBS$K;XDj$5$l$k(B
$BCSEDFb3U$,9qL1=jF@G\A}7W2h$rH/I=!"$3$NG/$r:G8e$K9b:=3$?eMa>lGQ;_$5$l$k(B
$B0$LoBK>.3X9;$KBh0l9f%W!<%k40@.(B
$BElIt!"CfIt!"@>ItKdN)COLH5vlM6CW>rNa$rGQ;_(B
$B;T8x32KI;_>rNc$r;\9T(B
$BGa1l5,@)K!$N;XDj$rb2=(B($B3HD%It(B)$BIpEDLtIJN)CO(B
$B;TL1%W!<%k40@.(B
$B0KJ]KdN)CO=W9)5v2D!"4X@>EE%+!"EE8;3+H/(B($B7W(B140$BK|#k#w(B)$BN)CO(B
$B?7A49qAm9g3+H/7W2h%9%?!<%H!"OB2N;3$N1'<#ED0lB>;a!"!V3$$rJV$;!"3$?eMa>l$r$B;T(BPCB$BBP:vK\It$r@_CV(B($B@>9A(BPCB$B:G9b(B3300ppm) 51$BG/(B8$B7n$^$G$K(B30$BK|N)JF$N%X%I%m$r^4^X!"6E8G:^$G8G$a$F(B
$B@>9AOF$N@>H*=8@QCO$K@Q$_>e$2$?!#(B
$B!V8x32$r9pH/$9$k9b:=;TL1$N2q!WH/B-!"9b:=K\9ADl
$B:G9b(B372ppm
$B>>2.AR;YIt$K4D6-8"$K$b$H$E$/!VK-A02PNO7z@_:9;_@A5aAJ>Y!W$rDsAJ!"(B
$B5y6H$B!V8x32$r9pH/$9$k9b:=;TL1$N2q!W
$B@>ItN)CO=W9)5v2D!"?@8M@=9]N)CO!"A4KdN);v6H40@.(B($B9g7W(B261$BK|-V(B)
$B!V;TL1$N2q!W$O$8$a$F!VF~IM8"!W$H$$$&8@MU$rMQ$$Cf?\5ACK;TD9$"$FM7JbF;@_CVMWK>=qAw$k(B
$B!V;TL1$N2q!W<+A3MxMQ<:HqD4::$^$H$a$k(B($BA4;T$G(B5$B2/(B2$B@iK|1_(B)
$BKhF|?7J9$,%-%c%s%Z!<%s!F(B75$B$G!VF~IM8"!W$r$O$8$a$FA49q$K>R2p(B
$B!V3$$r3h$+$7%3%s%S%J!<%H$r5qH]$9$kEl5~=82q!W$G(B$B!VF~IM8"@k8@!W(B$B$r:NBr(B
$B=01!M=;;0QBh0lJ,2J2q$GEDCfIpIWBe5D;N(B($BEN(B)$BF~IM8"$K4X$9$k!W(B($B>.@>OB?M2qD9(B)$B$OF~IM8"$N9M$(J}$r(B
$B$b$H$K4X@>$N3$4_@~A4D4::$rl3+J|$rMW5a(B
$B!VJ!2,8)3$?eMa>lAH9gO"9g2q!W(B($BCfB<0lCK2qD9(B)$B$NAm2q$GF~IM8"3NN)$r7h5D(B
$B!V(B100$B?M>Z8@=8!]9b:=$N3$$$$^$`$+$7!W$rJT=8H/9T!"$$$/$D$+$NL1B/9T;v$rH/7!(B
$B0&I28)!VD9IM3$?eMa>l$rYBh<72s8}F,J[O@$GF~IM8"$r$B!V9b:=F~IM8"1?F0$r$9$9$a$k2q!W$,H/B-!"BeI=@$OC?M(B $B9b:jM5;N(B
$B9b:=$G!VF~IM8"@k8@0l<~G/A49q=82q!W$HD`$j4H%G%b!"!VF~IM8"1?F0?d?JA49qO"Mm2q5D!WH/B-(B
$B?@8MJ[8n;N2q$NM-;V$G!VF~IM8"8&5fK!N'2H%0%k!<%V!W(B($B@$OC?M(B:$B860f9n8J!&EDCfM#J8J[8nEZ!KH/B-(B
$B5~ET$G3+$+$l$?!XF|K\EZCOK!3X2q!W$GEDCfJ[8n;N$,F~IM8"$rJs9p!"$O$8$a$F3XLd$N>l$GF$5D(B
$B!VA49q@i3c%7%s%]%8%&%`(B'76$B@iMU!W$GF~IM8"3NN)$r7h5D(B
$B!V;MF|;TF~IM8"$rYBh(B11$B2s8xH=(B($BJ!2,CO:[>.AR;YIt(B)$B$G!"869pB&>Z?M$H$7$F9b:j=PDn(B
$BEl5~$G!VF~IM8"@k8@Fs<~G/3$IMJ]A44pK\K!@)DjMW5aA49q=82q(Bj$B!"6d:B$GD`$j4H%G%b(B
$Bk]Aa$G!VBh;02s@i3c%7%s%]%8%&%`!W!"D9:j8)FnItAm9g3+H/7W2h$NCf;_$HF~IM8"3NN)$J$I$b$j$3$s$@(B
$B@k8@:NBr(B
$BA49q<+A3J]8nO"9g$N!VBh<72sA49q<+A3J]8nBg2q!W$G!V8xM-?eLLKdN)K!$rGQ;_$7!&3$IMJ]A4K!$N@)Dj(B
$B$r$a$6$9F~IM8"1?F0$r8"?J$9$k!W$3$H$,7h5D$5$l$?(B
$B9b:=;T(B$B!V4pK\9=A[!W(B$B$rH/I=!"F~IM8"1?F0$NH/>MCO$f$(!V=m$N2sI|!W$r4pD4$H$9$k;]L@5-(B
$B?@8M$G!VBhFs2sF~IM8"%7%s%]%8%&%`!W!"F|K\%M%W%A%e!<%s7W2h=`Hw2q$,H/B-(B
$B9b:=$G$N!VN.0h2B<0lO/BeI=(B)$B$K$h$k=;L1$NB&$+$i$N(B
$B!V?M9)3$4_=$I|7W2h!W$rH/I=!"$J$*!V9b:=F~IM8"0cF0$r$9$9$a$k2q!W$O(B11/27$B$NAm2q$GN.>k2$BOB2N;38)GrIM$G!VF~IM8"@k8@;0<~G/A49q=82q!W!"EDJU;T$NE7?@:jJ]B81?F0$r;Y1g$7$F%M%W7W2h;OF0(B
$B@%8MFb3$4D6-J]A4FCJLAY(B($BD9IM3$?eMa>lAJ>Y(B)$B$G>>;3CO:[!"F~IM8"$rG'$a$J$$;JK!H=CG(B
$B!V;MF|;TF~IM8"$r$B?@8M$G!VBh;02sF~IM8"%7%s%]%8%&%`!W3+:E!"8x6&?.BwO@$N:NMQ$HF~IM8"3NN)$r$b$j$3$s$@!V8x6&?.(B
$BBw@k8@!W:NBr(B
$BBg:e$G%M%W%F%f!<%s=`Hw2qAm2q!"@5<0L>>N$r!VF|K\$J$.$5J]B82q!W!V$&$i$7$^7W2h!W$H7hDj(B
$B9a@n8)D`O"9g2q!"8)2<$NKdN)CO4k6H$KBP$7$F!"F~IM8"$K$b$H$E$/3$4_3+J|$N1?F0$r;O$a$k(B
$B9b:=$NKdN)CO4k6H>bJ%2=3X$,3$4_@~Iu:?$N%U%'%s%9$rE15n(B
$B!V9b:=F~IM8"1?F0$r$9$9$a$k2q!W!"3$$H$N4XO"$G2O@n!"%@%`$rBN83$9$k$?$a2C8E@n2<$jrNc:vDj$,BG=P$5$l$k(B
$BJ<8K8)$K$h$k3$IMJ]A4>rNc$N:vDj$r$&$J$,$9$?$a3$$rY!W!"6qBNE*8"Mx$H$7$FG'$a$i$l$J$$4D6-8"$r$h$j$I$3$m$K$7$?AJ$($O?3H=$NBP>]$H(B
$B$7$F$N;q3J$r7g$/$H!"869p$NAJ$($rB`$1$?(B
$B!V9b:=$N2q!W!"9b:=;T5D2q$K!V9g@.@v:^DIJ|>rNc@)Dj!W@A4j!"(B12$B7n5D2q$GA42q0lCW$G:N:N$5$l$?!"F1(B
$B;~$K9b:=;T$r4^$`2C8E@nN.0h(B8$B;T(B17$BD.$K9g@.@v:^DIJ|$N(B
$B!V9b:=$N2q!W!"2C8E@nN.0h(B8$B;T(B17$BD.$K@v:^LdBj$K$D$$$F$N8x3+u!"(B8$B;T(B8$BD.$+$i2sEz!"(B57/8/1$B!":F(B
$B$B?@8M$G!VBh;M2sF~IM8"%7%s%]%8%&%`!W!"%]!<%H%T%"HcH=8+3X2q!"HcH=@
$B4D6-D#p$HF~IM8"1?F0$K$D$$$F;v(B
$BNcJs9p(B
$B!V9b:=$N2q!W!"9b:=;T5D2q$K!VN.0h2l$r$B?@8M$G!VBh8^2sF~IM8"%7%s%]%8%&%`!W$r3+:E!"85El5~ETCN;vH~G;ItN<5H;a$,;22C(B
$B!V9b:=$N2q!W!"9b:=;TD908!V9S0fD.CO0h$N3$$K=P$kF;O)$*$h$S9b:=;T3$4_@~$NA4LLE*2sI|7W2h:vDj$K(B
$B4X$9$kMWK>=q!WDs=P(B
$BF`NI8)@86p;T$G!VA49qO"Mm2q5D!W$K$h$k!V@86p2q5D!W!"A49q=82q$NBg9K$H1?F0J}?K$r7hDj(B
$B9b:=;T5D2q$,4D6-D#$K$h$k>bJ%2=3X$NGQ(BPCB$B>F5Q;n835(B
$B!V9b:=F~IM8"1?F0$r$9$9$a$k2q!W$J$I$G(BPCB$B4F;k=;L10Q0w2q!WH/B-!"0J8e7+$jJV$7>F5Q;n=T$B9b:=$G!VF~IM8"@k8@==<~G/A49q=82q!&BhO;2sF~IM8"%7%s%]%8%&%`!W$r3+:E(B
$B4D6-D#!"GQ(BPCB$BG.J,2r;n83
$B!V4F;k=;L10Q!W!"#62s$K$o$?$j<+
$B!V4F;k=;L10Q!W!"(BPCB$BLdBj%7%s%]%8%&%`3+:E!">F5Q%b%i%H%j%"%`@k8@=P$9!"CN;v!&;TD9!&4D6-D#D941(B
$B$"$FK\>F5QCf;_MWK>=q!"$3$N8eH?BP$N$?$a$N3X=,2q!"9V1i2q!"%G%bEyB?K;$-$o$a$k(B
$B!V9b:=F~IM8"$N2q!W$J$I#7CDBN$G(BPCB$B>F5QH?BPO"Mm2q!"BeI=?yED@u<#!";vL36ID99b:jM5;N(B
$B9b:=;T5D2qA40w6(5D2q$GA42q0lCWK\>F5Q7W2h$rN;>5(B($B8e(B12/23$B!"6&;:E^$OH?BP$NN)>lI=L@(B)
$B!VO"Mm2q5D!WHs>o$K@lLgE*$J!V(B68$B9`L\u!W$r8)Ey$KDs=P(B
$B8)$O!VH?BPO"Mm2q!WDs=P$N!V(B68$B9`L\u!W$KBP$7(B65$B9`L\$rJ8=q2sEz!"8!F$$9$k;~H6$bM?$($:Mb(B21$BF|(B
$BCN;v$,5v2D$r=P$9(B
$B9b:=;TD9$"$FK\>F5QCf;_MW@A=pL>Ds=P!"$3$NF|$^$G$NN_7W(B42,231$BL>(B
$B>b2=9=Fb$NK\>F5Q;\@_;n831?E>3+;O(B
$B!VO"Mm2q5D!W$,(B11/4$B$NBP;T8r>D@J>e7Y9p$7$F$$$?FG%,%9%[%9%2%s$,H/@8$7$?$HJs$8$i$l$k(B
$BK\>F5Q3+;O(B
$BK\>F5Q=*N;(B
1985$BG/$+$i(B1990$BG/$^$G!"(BPCB$B>F5QH?BP1?F0$N=82q!"<+
$B$N$[$H$s$I$,7r9/$rB;$J$$!"K\Mh$NF~IM8"1?F0$OD@BZ!"5Y;_$KDI$$9~$^$l$?(B
$B%M%C%H>e$K!VF~IM8"1?F08x<0%5%$%H!WN)$A>e$2(B
$BF~IM8"@k8@(B35$B<~G/5-G0%M%C%H%7%s%]%8%&%`3+:E$N8F$S$+$1?MJg=88F$S$+$1!JAa@nOBCK!"9b:jM5;NO"L>!K(B
$B%M%C%H>e$GF~IM8"@k8@(B35$B<~G/5-G0%M%C%H%7%s%]%8%&%`$N8F$S$+$13+;O(B
$BF~IM8"@k8@(B35$B<~G/5-G0%M%C%H%7%s%]%8%&%`(B$B3+:E(B |