PCB ࡢ᥹Ⓨ࡟క࠺⤌ᡂኚ໬࡟ࡘ࠸࡚௒஭⨾Ụ  ᒣ㷂ṇኵ  ᮾ㔝࿴㞝* ᯽ᮌᐉஂ**  㧗ᶫ᫂ᏹ㸦*ᮾி㒔ከᦶ⎔ቃ஦ົᡤ **⤫ィᩘ⌮◊✲ᡤ㸧せ  ᪨ⴭ⪅ࡽࡣࡇࢀࡲ࡛࡟ࠊ㒔ෆࡢ࠶ࡿᘓ≀࡟࠾࠸࡚ PCB ᐊෆởᰁࡀⓎ⏕ࡋ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࠊࡑࡢཎᅉࡀᘓ≀ෆ㒊࡟౑⏝ࡉࢀ࡚࠸ࡿࢩ࣮ࣛࣥࢺ࡛࠶ࡿࡇ࡜ࢆࠊᘓ≀ෆ PCB ⃰ᗘศᕸ➼࠿ࡽ᫂ࡽ࠿࡟ࡋ࡚ࡁࡓࠋࡋ࠿ࡋࠊởᰁ※᥎ᐃ࡟࠾࠸࡚㔜せ࡞᰿ᣐ࡜࡞ࡿ PCB ྠ᪘య⤌ᡂࡢ↷ྜ࡛ࡣࠊᐊෆởᰁ኱Ẽ࡜ࢩ࣮ࣛࣥࢺ࡜࡛᏶඲࡟ࡣ୍⮴ࡋ࡚࠾ࡽࡎࠊࢩ࣮ࣛࣥࢺ࠿ࡽ PCB ࡀ᥹Ⓨࡍࡿ㝿࡟ྠ᪘య࣭␗ᛶయ⤌ᡂ࡟ኚ໬ࡀ㉳ࡁ࡚࠸ࡿྍ⬟ᛶࡀ᥎ ࡉࢀࡓࠋࡑࡇ࡛௒ᅇࡣࠊPCB ࡀ〇ရ➼࠿ࡽ᥹Ⓨࡍࡿ㝿ࡢ⤌ᡂኚ໬࡟ࡘ࠸࡚ᐊෆᐇ㦂᳨࡛ドࡍࡿ࡜ඹ࡟ࠊPCB 㧗⃰ᗘ኱ẼởᰁࡀⓎぬࡋࡓ㝿࡟ࠊởᰁ኱Ẽࡢ PCB ⤌ᡂ࠿ࡽởᰁ※ࡢ⤌ᡂࢆண ࡍࡿ᪉ἲ࡟ࡘ࠸᳨࡚ウࡋࡓࠋࡑࡢ⤖ᯝࠊ〇ရ➼࠿ࡽ PCB ࡀ኱Ẽ୰࡟᥹Ⓨࡍࡿ㝿࡟ࡣྠ᪘య⤌ᡂ࡟ኚ໬ࡀ⏕ࡌࠊ᥹Ⓨᚋࡣపሷ⣲ഃࡢྠ᪘యᏑᅾ๭ྜࡀ㧗ࡃ࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊ᥹Ⓨᚋࡢ⤌ᡂࡣ PCB ࢆྵࡴ〇ရࡸ፹యࡢ✀㢮ࡸ᥹Ⓨ ᗘ࡟ࡼࡗ࡚኱ࡁ࡞ᕪࡣ࡞ࡃࠊPCB ᥹Ⓨ⤌ᡂࢆ⏝࠸ࡓ CMB ゎᯒ࡟ࡼࡾࠊởᰁ኱Ẽࡢ⤌ᡂ࠿ࡽởᰁ※⤌ᡂࢆ᥎ᐃࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ࣮࣮࢟࣡ࢻ㸸PCBࠊࢩ࣮ࣛࣥࢺࠊ᥹Ⓨࠊ⤌ᡂኚ໬

Change in homologue profiles of PCBs via volatilizationIMAI Yoshie, YAMAZAKI Masao, HIGASHINO Kazuo*, KASHIWAGI Nobuhisa**, TAKAHASHI Akihiro
㸦* Tama Environment Office** The Institute of Statistical Mathematics 㸧Summary

Our previous research has presented that the distribution of PCBs in an indoor air and demonstrated that high PCBs
concentrations caused by sealants used for construction of a building. Homologue profile of PCBs in the indoor air,which could reflect that of a source, however, did not correspond to that of the expected source completely. Thissuggested that the homologue profile could change via volatilization process. In this study, the change in the homologue
profile via volatilization was demonstrated, and a procedure to assess the homologue profile of a source was tested. Our
result demonstrated that the ratio of lower chlorinated homologues in vapor from a PCBs product was more than that in
the PCBs products themselves, and the homologues profiles of the vapor depended on neither type of products nortemperature. A homologues profile was calculated using the CMB method. The calculated homologue profile of asource corresponded to the measured profile. Therefore, the homologue profile of a source PCBs product can beassessed by the composition of the polluted air using the CMB method.
Key Words㸸PCBs, sealants, volatilization , homologue plofiles 㸯 ࡣࡌࡵ࡟࡟࠾࠸࡚ࡶⓎ⏕ࡋ࡚࠸ࡿྍ⬟ᛶࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ4)ࠋ

 1973ᖺࡢࠕ໬Ꮫ≀㉁ࡢᑂᰝཬࡧ〇㐀➼ࡢつไ࡟㛵ࡍࡿ ኱Ẽࡸᅵተ➼࡛PCBởᰁࡀⓎぬࡋࡓሙྜࠊởᰁཎᅉἲᚊࠖ㸦௨ୗࠊ໬ᑂἲ㸧ࡢไᐃ௨㝆ࠊฎ⌮యไᩚഛࡢ㐜ࢀࢆ᥎ᐃࡍࡿ᪉ἲ࡜ࡋ࡚ࠊởᰁⓎぬሙᡤ࿘㎶ࡢPCB⃰ᗘ࡟ࡼࡾࠊ㛗ᮇ㛫࡟Ώࡾಖ⟶ࡉࢀ࡚ࡁࡓ㧗ᅽࢺࣛࣥࢫࠊࢥศᕸࡢᢕᥱ࡜ඹ࡟ࠊởᰁཎᅉ࡜᥎ᐃࡉࢀࡿPCB〇ရ➼ࣥࢹࣥࢧ➼ࡢPCB〇ရࡣࠊ2001ᖺࡢࠕ࣏ࣜሷ໬ࣅࣇ࢙ࢽ࡜ࡢ␗ᛶయ࣭ྠ᪘య⤌ᡂࡢ↷ྜࡀ㔜せ࡞ᡭẁࡢ୍ࡘ࡜࡞ࣝᗫᲠ≀ࡢ㐺ṇ࡞ฎ⌮ࡢ᥎㐍࡟㛵ࡍࡿ≉ูᥐ⨨ἲࠖ㸦PCBࡿࠋࡋ࠿ࡋࠊඛ࡟㏙࡭ࡓࠊࢩ࣮ࣛࣥࢺࢆཎᅉ࡜ࡍࡿᘓ≀≉ูᥐ⨨ἲ㸧ࡢไᐃ࡟ࡼࡾࠊࡼ࠺ࡸࡃᅜෆ5⟠ᡤࡢฎ⌮᪋ෆ✵ẼPCBởᰁ࡛ࡣࠊởᰁ኱Ẽ࡜ࢩ࣮ࣛࣥࢺ࡜࡛PCBタ➼࡟࠾࠸࡚ࠊฎ⌮ࡉࢀࡿࡼ࠺࡟࡞ࡗࡓࠋࡲࡓࠊ໬ᑂἲࡢྠ᪘య⤌ᡂࡣ᏶඲࡟ࡣ୍⮴ࡏࡎࠊởᰁ኱Ẽࡢ᪉ࡀపሷไᐃᚋ࡟〇㐀ࡉࢀࡓࠊPCBࢆྵࡲ࡞࠸࡜ࡉࢀࡿࢥࣥࢹࣥ⣲ഃࡢྠ᪘యẚ⋡ࡀ㧗ࡃ࡞ࡗ࡚࠸ࡿഴྥࡀㄆࡵࡽࢀࡓࢧࠊኚᅽჾ➼࡟࠾࠸࡚ࡶࠊ㏆ᖺࠊࡑࡢ⤯⦕Ἔ୰࡟ప⃰ᗘ3)ࠋࡇࡢ⤌ᡂࡢࡎࢀࡣࠊPCBࡀ〇ရ࠿ࡽ኱Ẽ୰࡟᥹ⓎࡍࡢPCBࡀྵࡲࢀࡿ〇ရࡀᏑᅾࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡾ1)ࠊ

ࡿ㝿࡟⤌ᡂኚ໬ࡀ㉳ࡁ࡚࠸ࡿࡓࡵ࡛ࡣ࡞࠸࠿࡜᥎ࡑࢀࡽᚤ㔞PCBởᰁ〇ရ࡟ࡘ࠸࡚ࡶࠊ2010ᖺ࡟ฎ⌮࢞࢖ࢀࡓࠋࢻࣛ࢖ࣥࡀᐃࡵࡽࢀࠊฎ⌮యไࡀᩚഛࡉࢀࡘࡘ࠶ࡿࠋ ࡑࡇ࡛ࠊ኱Ẽ࡟࠾ࡅࡿPCBởᰁࡢཎᅉࡢ᥎ᐃࢆࡼࡾ ୍᪉ࠊPCBࡣ㟁Ẽᶵჾࡢ⤯⦕Ἔ࡜ࡋ࡚ࡔࡅ࡛࡞ࡃࠊྜṇ☜࡞ࡶࡢ࡜ࡍࡿࡓࡵࠊPCBࡀ〇ရ➼࠿ࡽ᥹Ⓨࡍࡿ㝿ᡂᶞ⬡ࡸྜᡂࢦ࣒ࠊሬᩱ➼ࡢྍረ๣ࡸ㞴⇞๣࡜ࡋ࡚ࡶ౑ࡢ⤌ᡂኚ໬ࢆᐊෆᐇ㦂࡟ࡼࡾ᳨ドࡍࡿ࡜ඹ࡟ࠊPCB኱⏝ࡉࢀ࡚ࡁࡓࡀ2)ࠊࡑࢀࡽࡢ〇ရ࡟ࡘ࠸࡚ࡣ౑⏝ᐇែࡀゎẼởᰁࡀⓎぬࡋࡓ㝿࡟ࠊởᰁ኱ẼࡢPCB⤌ᡂ࠿ࡽởᰁ᫂ࡉࢀ࡚࠸࡞࠸ࠋ㐣ཤ࡟ᘓタࡉࢀࡓᘓ≀࡛ࡣࠊࡑࢀࡽࡢ※ࡢPCB⤌ᡂࢆண

PCB〇ရࡀࢩ࣮ࣛࣥࢺࡸࢣ࣮ࣈࣝ⤯⦕ᮦ➼࡜ࡋ࡚౑⏝ࡉࡑࡢ⤖ᯝࠊⱝᖸࡢ▱ぢࡀᚓࡽࢀࡓࡢ࡛ሗ࿌ࡍࡿࠋࡉࡍࡿ᪉ἲ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋࢀࠊPCB〇ရ࡜ㄆ㆑ࡉࢀ࡞࠸ࡲࡲࠊ⌧ᅾࡶ౑⏝ࡉࢀ⥆ࡅ࡚࠸ࡿࢣ࣮ࢫࡀ࠶ࡿࠋⴭ⪅ࡽࡣࠊ1960ᖺ௦࡟ᘓタࡉࢀࡓ㸰 ㄪᰝ᪉ἲᘓ≀࡟࠾࠸࡚ࠊᐊෆ኱ẼࡢPCB⃰ᗘࡀᒇእ኱Ẽࡢ50ಸ௨㸦㸯㸧 ᐇ㦂⿦⨨ୖ࡜࡞ࡗ࡚࠸ࡓ஦౛ࢆㄪᰝࡋࠊࡑࡢởᰁཎᅉࡀᘓ≀ෆ㒊 ᐇ㦂࡟⏝࠸ࡓ⿦⨨ࡢᴫ␎ࢆᅗ1࡟♧ࡍࠋPCBヨᩱࢆ᥹࡛౑⏝ࡉࢀ࡚࠸ࡿPCBࢆྵ᭷ࡍࡿࢩ࣮ࣛࣥࢺ࡛࠶ࡿࡇ࡜Ⓨᐜჾ࡟ධࢀࠊᜏࢆ✺ࡁṆࡵࡓ3)ࠋࡇࡢࡼ࠺࡞ᮍᢕᥱࡢPCB〇ရࢆཎᅉ࡜

ศࢆ᥹Ⓨࡉࡏࡓࠋ᥹Ⓨᐜჾෆࡢ✵Ẽࡣᐃὶ㔞࣏ࣥࣉ࡛ࡍࡿᐊෆ኱ẼPCBởᰁࡣࠊྠ᫬ᮇ࡟ᘓ࡚ࡽࢀࡓ௚ࡢᘓ≀0.5L/ศ࡛྾ᘬࡋࠊ᥹ⓎࡋࡓPCBࢆ኱Ẽヨᩱ⏝ᅛ┦኱Ẽヨᩱ⏝ᜏ ᵴᵴෆ࡛10㹼40Υ࡟ຍࡋ࡚PCBᡂ

3&% ヨᩱᅛ┦3&% ヨᩱࢩ࣮ࣛࣥࢺᜏ ᵴෆ㒊኱Ẽヨᩱ⏝ᅛ┦ከⰺࢣ࣮ࣈࣝ⿦⨨඲ᬒ྾ᘬ࣏ࣥࣉᅗ  ᐇ㦂⿦⨨ᅗ  ᐇ㦂࡟౑⏝ࡋࡓ 3&% 〇ရ 㸦Sep-Pak PS-AirࠊWaters〇㸧࡟྾╔࣭ᤕ㞟ࡋࡓࠋ྾ᘬ㸱 ⤖ᯝ᫬㛫ࡣヨᩱࡢPCB⃰ᗘ࡟ࡼࡾ24㹼45᫬㛫࡜ࡋࡓࠋ㸦㸯㸧 PCB〇ရ࠿ࡽࡢ3&%᥹Ⓨ㔞࡜⤌ᡂᅗ3࡟ࠊࢩ࣮ࣛࣥࢺཬࡧከⰺࢣ࣮ࣈࣝ࠿ࡽ᥹Ⓨࡋࡓ㸦㸰㸧 ㄪᰝᑐ㇟ヨᩱ ᐇ㦂࡟ࡣࠊ᪤ሗ࡟࠾࠸࡚ᐊෆ኱Ẽởᰁࡢởᰁཎᅉ࡜≉

PCB⃰ᗘ㸦pg/g/h㸧࡜ࠊ〇ရཬࡧ᥹Ⓨᡂศࡢྠ᪘య⤌ᡂᐃࡋࡓࢩ࣮ࣛࣥࢺ3)࡜ࠊᙜ◊✲ᡤ࡛PCBࢆྵ᭷ࡍࡿࡇ࡜

㸦௨ୗࠊ᥹Ⓨ⤌ᡂ㸧ࢆ♧ࡍࠋPCB〇ရ࠿ࡽࡢ༢఩㔜㔞ࠊࢆ☜ㄆࡋࡓከⰺࢣ࣮ࣈࣝࡢ2✀㢮ࡢPCB〇ရࢆ⏝࠸ࡓ㸦ᅗ༢఩᫬㛫࠶ࡓࡾࡢ᥹Ⓨ㔞ࡣࠊ〇ရ୰ࡢPCB⃰ᗘࡢ1㸭502㸧ࠋ୓㹼1㸭10୓࡛ࠊ20Υࡼࡾࡶ40Υ࡛ࡼࡾከࡃࡢPCBࡀ᥹ⓎࡋࡓࠋࡲࡓࠊKC300࠿ࡽKC600ࡲ࡛ࡢPCBཎయࢆ✀ࠎࡢ፹య࡟ῧຍࡋࠊ፹యࡢ┦㐪࡟ࡼࡿ᥹Ⓨ⤌ᡂࡢẚ㍑ᐇ㦂ࡶ⾜ࡗ኱Ẽ⎔ቃ࡬᥹ⓎࡋࡓPCBࡢ⤌ᡂࡣࠊ࡝ࡕࡽࡢPCB〇ရࡓࠋPCBῧຍヨᩱࡣࠊKC300ࠊKC400ࠊKC500ཬࡧKC600

࡟࠾࠸࡚ࡶࠊ〇ရ୰ࡢ⤌ᡂࡼࡾࡶపሷ⣲ഃࡢྠ᪘యᏑᅾ

ࡢ࣊࢟ࢧࣥ⁐ᾮ㸦300ȣg/mL㸧0.5mLࢆ㯮࣎ࢡᅵተ2gࠊ๭ྜࡀ㧗ࡃ࡞ࡿഴྥࡀㄆࡵࡽࢀࡓࠋከⰺࢣ࣮ࣈ࡛ࣝࡣࠊ

࢚࢘ࢫ1.5gࠊ࣏ࣜ࢘ࣞࢱࣥࣇ࢛࣮࣒㸦௨ୗࠊPUF㸧0.4g〇ရ⤌ᡂ࡛ࡣ3ሷ⣲యཬࡧ4ሷ⣲యࡀࡑࢀࡒࢀ4๭ࢆ༨࡟ࡑࢀࡒࢀῧຍࡋࡓᚋࠊᐊ

ୗ࡛⣙3᪥㛫㟼⨨ࡋ࡚࣊࢟ࢧ

ࡵ࡚࠸ࡓࡢ࡟ᑐࡋࠊ᥹Ⓨᚋࡢ⤌ᡂࡣ4ሷ⣲యࡀ3๭௨ୗ

ࣥࢆ᥹Ⓨ㝖ཤࡋ࡚ㄪ〇ࡋࡓࠋࡲࡓࠊྛPCB⁐ᾮ0.5mLࢆ࡟ῶᑡࡋࠊ3ሷ⣲యࡀ6๭࡟ቑ࠼࡚࠸ࡓࠋࢩ࣮ࣛࣥࢺ࡛

᥹Ⓨᐜჾ࡟ศྲྀࡋ࡚࣊࢟ࢧࣥࢆ᥹Ⓨ㝖ཤࡋࠊPCBཎయࡑࡶࠊ᥹Ⓨᚋ࡟4ሷ⣲యཬࡧ5ሷ⣲యࡢ๭ྜࡀቑຍࡋࠊ6ሷࡢࡶࡢ㸦↓፹యヨᩱ㸧࡟ࡘ࠸࡚ࡶᑐ㇟ヨᩱ࡜ࡋࡓࠋ⾲  㧗ศゎ⬟ *&06 ࡢ

ᐃ᮲௳GC㸸Agilent HP-7890A㸦㸱㸧 ศᯒ᪉ἲ࣒࢝ࣛ

࢔ PCBࡢᢳฟ᥹Ⓨᡂศࢆᤕ㞟ࡋࡓ኱Ẽヨᩱ⏝ᅛ┦࡟ࢪࢡ࣓ࣟࣟࢱࣥ

᪼

10mLࢆ⮬↛ὶୗࡉࡏࠊPCBᡂศࢆ⁐ฟࡋࡓࠋ⁐ฟᾮ࡟

᮲௳

HT8-PCB 60m0.25mm
120 Υ 㸫 20 Υ / ศ 㸫 180 Υ 㸫 2 Υ / ศ 㸫260Υ㸫5Υ/ศ㸫300Υ(4ศ)

MS㸸JEOL JMS-800Dࢡ࣮ࣜࣥ࢔ࢵࣉࢫࣃ࢖ࢡ㸦TPCB-CL-A25ࠊWellingtonᐃ࣮ࣔࢻ♫〇㸧ࢆῧຍࡋ࡚ࠊ❅⣲Ẽὶୗ࡛⃰⦰ࡋࡓᚋࠊࢩࣜࣥࢪࢫࣃ࢖ࢡ㸦TPCB-SY-A25ࠊWellington♫〇㸧ࢆῧຍࡋࠊᐃ᳨ᾮ࡜ࡋࡓࠋࡲࡓࠊࢩ࣮ࣛࣥࢺཬࡧከⰺࢣ࣮ࣈࣝࡢPCBྵ᭷㔞ࡢศ࢖࢜ࣥ໬㟁ὶ500ȣA

࢖࢜ࣥ໬㟁ᅽ

38eVࢢ࣮ࣝࣆࣥࢢ

ᯒ࡟ࡘ࠸࡚௨ୗࡢᡭ㡰࡛⾜ࡗࡓࠋࡑࢀࡒࢀࡢ〇ရࢆ1mmEI㸩

࣭1,2ሷ⣲య(0~15ศ)ࠊ5~7ሷ⣲(15~60ศ)
࣭3,4ሷ⣲య(0~15ศ)ࠊ8~10ሷ⣲(15~60ศ)࣓ࢵࢩࣗ௨ୗࡲ࡛⢊○ࡋࡓᚋࠊࢺ࢚ࣝࣥࢆ⏝࠸࡚16᫬㛫ࢯࢵࢡࢫ࣮ࣞᢳฟࢆ⾜ࡗࡓࠋᢳฟᾮ࡟ࢡ࣮ࣜࣥ࢔ࢵSJJK ࣉࢫࣃ࢖ࢡࢆῧຍࡋࠊከᒙࢩࣜ࢝ࢤ࣒ࣝ࢝ࣛࢡ࣐ࣟࢺ

ϯϬࢢࣛࣇ࢕࣮࡟ࡼࡾ⢭〇ฎ⌮ࢆ⾜ࡗࡓᚋࠊ⢭〇ᾮࢆ⃰⦰ϮϬϭϬࡋࠊࢩࣜࣥࢪࢫࣃ࢖ࢡࢆῧຍࡋ࡚ᐃ⏝᳨ᾮ࡜ࡋࡓࠋ࡞࠾ࠊ⢭〇ฎ⌮࡟࠾࠸࡚ࡣࠊ10%◪㓟㖟ࢩࣜ࢝ࢤࣝࢆ

⏝࠸ࡓሙྜࠊ1ሷ⣲యࡢᅇ཰⋡ࡀపୗࡍࡿࡇ࡜ࡀ☜ㄆഒࡉࢀࡓࡓࡵࠊ௒ᅇࡢ⢭〇ฎ⌮࡟ࡣ◪㓟㖟ࢩࣜ࢝ࢤࣝࢆϭϬϬй඘ሸࡋ࡞࠸ከᒙࢩࣜ࢝ࢤ࣒ࣝ࢝ࣛࢆ౑⏝ࡋࡓࠋϴϬй࢖ᐃከⰺࢣ࣮ࣈࣝϬഒϮϬΥϲϬйϰϬйᐃࡣࠊ㧗ศゎ⬟GC/MSࢆ⏝࠸࡚PCBࡢ඲␗ᛶయࢆศᯒࡋࡓࠋSJJK ࢩ࣮ࣛࣥࢺᐃ᮲௳ࢆ⾲㸯࡟♧ࡍࠋϮϬйϬйನ 㙽 䤉 ನನ 㙽 䤉 ನᅗ  3&% 〇ရ࠿ࡽࡢ᥹Ⓨ㔞࡜᥹Ⓨ⤌ᡂϰϬΥϭϬEϵƐKϴƐ,ϳƐ,ϲƐWϱƐdϰƐdϯƐϮƐDϭƐ ᥹Ⓨ⤌ᡂࢆ፹య㛫࡛ẚ㍑ࡍࡿ࡜ࠊPCB࡟ᑐࡍࡿ྾╔⣲యࡀῶᑡࡋ࡚࠸ࡓࠋ〇ရ࠿ࡽPCBࡀ᥹Ⓨࡍࡿ㝿࡟ࡣࠊ⬟ຊࡢ㧗࠸ᅵተࡸPUF࡟࠾࠸࡚ࠊࡼࡾపሷ⣲యࡢᏑᅾྠ᪘య⤌ᡂ࡟ኚ໬ࡀ㉳ࡁࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋࡲࡓࠊࢩ࣮ࣛࣥࢺ࠿ࡽࡢ᥹Ⓨ⤌ᡂࡣࠊ᪤ሗ࡛ሗ࿌ࡋࡓ๭ྜࡀ㧗ࡃ࡞ࡿഴྥࡀⱝᖸㄆࡵࡽࢀࡓࡀࠊ፹య㛫ࡢ᥹Ⓨᐊෆởᰁ኱Ẽࡢ⤌ᡂ3)࡜ࡼࡃ୍⮴ࡋ࡚࠾ࡾ㸦ᅗ3㸧ࠊᮏᐇ㦂⤌ᡂࡢᕪࡣࠊཎయ⤌ᡂ࡜᥹Ⓨ⤌ᡂ࡜ࡢᕪ࡟ẚ࡭ᑠࡉ࠸ࡶ࡟ࡼࡾࠊࡑࡢᐊෆ኱ẼPCBởᰁࡢཎᅉࡀࢩ࣮ࣛࣥࢺ࡛࠶

ࡢ࡛࠶ࡗࡓࠋࡲࡓࠊ᥹Ⓨࡿࡇ࡜ࢆᐇドࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ࡚ࡣࠊ ᗘࡢୖ᪼࡟క࠸㧗ሷ⣲యࡢᏑᅾ๭ྜࡀⱝᖸ㧗ࡃ㸦㸰㸧 ✀ࠎࡢ፹య࠿ࡽࡢ3&%ࡢ᥹Ⓨ㔞࡜⤌ᡂ࡞ࡿヨᩱࡶㄆࡵࡽࢀࡓࡀࠊ ᗘ࡜⤌ᡂ࡜ࡢ㛵ಀࡣ☜ㄆ࡛ 㐣ཤ࡟ᅜෆ࡛౑⏝ࡉࢀࡓ୺࡞PCBཎయ࡛࠶ࡿࠊKC300ࠊ

ࡁ࡞࠿ࡗࡓࠋᗘ࡜ྠ᪘య⤌ᡂࡢ㛵ಀ࡟ࡘ࠸

KC400ࠊKC500ཬࡧKC600ࢆ࢚࢘ࢫ➼ࠊྛ✀፹య࡟ῧຍ〇ရ➼࠿ࡽPCBࡀ᥹Ⓨࡍࡿ㝿࡟ࡣࠊྠ᪘య⤌ᡂࡣపࡋࡓヨᩱࢆ⏝࠸ࡓ᥹Ⓨᐇ㦂ࡢ⤖ᯝࢆ⾲2ཬࡧᅗ4ࠊ5࡟♧ࡍࠋሷ⣲ഃ࡟᫂☜࡟ࢩࣇࢺࡍࡿࡶࡢࡢࠊ᥹Ⓨ⤌ᡂࡣ፹యࡸ୍ ᫬㛫࠶ࡓࡾࡢPCBࡢ᥹Ⓨ㔞ࡣࠊKC300ῧຍヨᩱ࡛⯡኱Ẽ⎔ቃ⛬ᗘࡢ

1,300㹼700,000pg/hࠊKC400࡛550㹼520,000pg/hࠊࡎࠊ᥹Ⓨ⤌ᡂࡣ፹యࡢ✀㢮ࡸKC500࡛89㹼160,000pg/hࠊKC600࡛25㹼35,000pg/h࡛ࠊࡢᙳ㡪ࢆᙉࡃཷࡅࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋ

ྛ፹య࡟ῧຍࡋࡓPCBࡢ1㸭500୓㹼1㸭2,000ࡢ㔞࡛࠶ࡗࡓࠋ㸲 ⪃ᐹ㸦᥹Ⓨ⤌ᡂ࠿ࡽ᥹Ⓨඖࡢ⤌ᡂࡢ᥎ᐃ㸧

PCBࡢ᥹Ⓨ㔞ࡣῧຍ፹య࡟ࡼࡗ࡚኱ࡁࡃ␗࡞ࡾࠊ᥹Ⓨᗘኚືᖜ࡛ࡣࠊ᫂☜࡞ᕪࡣㄆࡵࡽࢀᗘࡼࡾࡶࠊởᰁ※ࡢ⤌ᡂ ኱Ẽࡸᅵተ➼࡛PCBởᰁࡀⓎぬࡋࡓሙྜࠊởᰁཎᅉ㔞ࡣ࡝ࡢPCBཎయ࡛ࡶ↓፹య࡛᭱ࡶከࡃࠊ࢚࢘ࢫࠊᅵተࠊ

࡜ண

PUFࡢ㡰࡟ᑡ࡞ࡃ࡞ࡗࡓࠋPCB࡟ᑐࡍࡿ྾╔⬟ຊࡣࠊ࢘≉ᐃࡢ㔜せ࡞ᡭẁ࡜࡞ࡿࡀࠊ௒ᅇࡢᐇ㦂࠿ࡽࠊ኱Ẽࡢở࢚ࢫࡼࡾࡶᅵተࡸPUF࡛㧗࠸࡜⪃࠼ࡽࢀࡓࠋࡲࡓࠊ᥹Ⓨᰁ࡟࠾࠸࡚ࡣࠊ〇ရ➼࠿ࡽPCBࡀ᥹Ⓨࢆࡍࡿ㝿࡟ྠ᪘㔞ࡣయ⤌ᡂ࡟ኚ໬ࡀ㉳ࡇࡿࡓࡵࠊởᰁ኱Ẽ࡜〇ရ➼ࡢởᰁཎᗘ࡟ࡼࡗ࡚ࡶ␗࡞ࡗ࡚࠾ࡾࠊ࡝ࡢῧຍ፹య࡛ࡶ

ࡉࢀࡿPCB〇ရ➼࡜ࡢ⤌ᡂࡢ↷ྜࡀởᰁཎᅉࡢᗘࡀ㧗࠸࡯࡝᥹Ⓨ㔞ࡣቑຍࡋࡓࠋࡉࡽ࡟ࠊྠ୍ῧຍ፹యᅉ࡜࡛ࠊྠ᪘య⤌ᡂࢆ༢⣧࡟ẚ㍑ࡍࡿࡇ࡜ࡣ࡛ࡁ࡞࠸ࡇ࠿ࡽࡢ᥹Ⓨ㔞ࡣPCBཎయࡢ✀㢮࡟ࡼࡗ࡚␗࡞ࡾࠊ࡝ࡢ፹࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋởᰁ኱ẼࡢPCB⤌ᡂ࠿ࡽࠊࡑࢀయ࡛ࡶKC300ῧຍヨᩱ࠿ࡽࡢ᥹Ⓨ㔞ࡀ᭱ࡶከࡃࠊKC400

ࡽࡀ᥹Ⓨࡍࡿ๓ࡢࠊ༶ࡕởᰁ※ࡢ⤌ᡂࢆ᥎ᐃࡍࡿࡇ࡜ࡀ

࡛ࡣKC300ࡢ42㹼77%ࠊKC500࡛ࡣ7㹼31%ࠊKC600࡛

࡛ࡁࡿ࡞ࡽࡤࠊởᰁཎᅉࢆ☜ᐃࡍࡿୖ࡛ࡢ㔜せ࡞᝟ሗ࡟ࡣ2㹼11%ࡢ᥹Ⓨ㔞࡛࠶ࡗࡓ㸦ᅗ4㸧ࠋ࡞ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ࡑࡇ࡛ࠊPCB〇ရ࡟⏤᮶ࡍࡿᐊෆ኱Ẽởᰁࢆ᝿ᐃࡋࠊ ྛ፹య࠿ࡽ᥹ⓎࡋࡓPCBࡢྠ᪘య⤌ᡂࡣࠊPCB〇ရࢆ⏝࠸ࡓᐇ㦂⤖ᯝ࡜ྠᵝ࡟ࠊPCBཎయ⤌ᡂ㸦᥹Ⓨ๓ࡢ⤌ᡂ㸧    ᐊෆởᰁ኱Ẽࡢ⤌ᡂ㸦᥹Ⓨ⤌ᡂ㸧࠿ࡽPCBࡢⓎ⏕※㸦᥹Ⓨඖ㸧ࡢྠ᪘య⤌ᡂࢆ᥎ᐃࡍࡿ᪉ἲ࡟ࡘ࠸᳨࡚ウࢆヨࡳࡼࡾࡶపሷ⣲ഃࡢྠ᪘యࡢᏑᅾ๭ྜࡀ㧗ࡃ࡞ࡗࡓ㸦ᅗ5㸧ࠋ    ⾲  ✀ࠎࡢ፹య࠿ࡽࡢ 3&% ᥹Ⓨ㔞㸦SJK㸧
KC300ῧຍヨᩱKC400ῧຍヨᩱ

↓፹య

࢚࢘ࢫ

ᅵተ

PUF

↓፹య

࢚࢘ࢫ

ᅵተ

PUF

ϴϬй

10Υ

21,00013,000

1,800

1,300

15,000

7,300

970

550

ϲϬй

20Υ

56,00035,000

5,400

2,700

43,00023,000

3,200

1,600

30Υ

250,000

150,000

20,0009,000

170,000

99,000

9,000

3,900

40Υ

700,000

310,000

49,00014,000520,000

160,000

22,0008,500

KC500ῧຍヨᩱ↓፹య䜴䜶䝇 ϰϬй ϮϬйϬй

㻜

.&

㻝ᅵተ
 .&

㻞Wh&㻟.& 㻠

ᅗ .&࡟ᑐࡍࡿ.&ࠊ.&ࠊ.&ࡢ

KC600ῧຍヨᩱ↓፹య࢚࢘ࢫ

ᅵተ

PUF

↓፹య

࢚࢘ࢫ

ᅵተ

PUF

10Υ

6,200

3,000

380

89

1,400

320

110

25

20Υ

17,00011,000

680

230

6,000

2,000

240

66

30Υ

59,00038,0001,500

680

18,000

7,100

680

180

40Υ

160,000

62,000

3,600

1,700

35,00012,0001,400370

<ϯϬϬ䛻ᑐ䛩䜛๭ྜϭϬϬй

3&%᥹Ⓨ㔞ࡢ๭ྜ   ͤᣓᘼෆࡢᩘ್ࡣᖹᆒ್ <ϯϬϬϭϬϬйϭϬ
EϵƐKϴƐ,ϳƐ,ϲƐWϱƐdϰƐdϯƐϮƐDϭƐϴϬйϲϬйϰϬйϮϬйϬй᥹Ⓨᡂศ<ϰϬϬϭϬϬйϴϬйϲϬйϰϬйϮϬйϬйϭϬEϵƐKϴƐ,ϳƐ,ϲƐWϱƐdϰƐdϯƐϮƐDϭƐ᥹Ⓨᡂศ<ϱϬϬϭϬϬйϴϬйϲϬйϰϬйϮϬйϬйϭϬEϵƐKϴƐ,ϳƐ,ϲƐWϱƐdϰƐdϯƐϮƐ
DϭƐ
᥹Ⓨᡂศ<ϲϬϬϭϬϬйϴϬйϲϬйϰϬйϮϬйϬйϭϬEϵƐKϴƐ,ϳƐ,ϲƐWϱƐdϰƐdϯƐϮƐDϭƐ᥹Ⓨᡂศᅗ ྛ✀፹య࠿ࡽ᥹Ⓨࡋࡓ3&%ࡢྠ᪘య⤌ᡂ࡜3&%ཎయ⤌ᡂ ࡓࠋᮏ᥎ᐃ࡛⏝࠸ࡓCMBἲࡣࠊ᯽ᮌࡽࡀ㛤ⓎࡋࡓCMBk᥎ᐃࡣḟࡢᡭ㡰࡛⾜ࡗࡓ㸦ᅗ6㸧ࠋձղճver.1.45)ࢆ౑⏝ࡋࡓࠋᮏࣔࢹࣝ࡟ࡣࠊ㔜ࡳ௜ࡁ᭱ᑠ஧஌ᐇ㦂࡛ᚓࡽࢀࡓKC300㹼KC600ࡢ᥹Ⓨ⤌ᡂࢆⓎ⏕ἲ㸦Mr-CMB㸧ࠊBerksonἲ㸦Bs-CMB㸧ࠊ㛵ᩘ㛵ಀゎᯒ※ࢹ࣮ࢱ࡟⏝࠸ࡓCMBゎᯒ࡟ࡼࡾࠊởᰁ኱Ẽࡢ᥹Ⓨ

㸦Fr-CMB㸧ࡢ3✀㢮ࡢィ⟬᪉ἲࡀ࠶ࡾࠊࡑࢀࡒࢀ࡟ከ࣮࣋ࢫࡢྛKCࡢᐤ୚ᗘ㸦Ꮡᅾ๭ྜ㸧ࢆ⟬ฟ㡯ศᕸ㸦Mn㸧ࠊᡴࡕษࡾṇつศᕸ㸦Tn㸧ࠊ࣐࢞ࣥศᕸ㸦Gm㸧ࠊ

KC300㹼KC600ࡢྛPCBཎయ࡟࠾࠸࡚ࠊྠ㔞ࡢཎయᑐᩘṇつศᕸ㸦Ln㸧ࡢ4✀ࡢ☜❧ศᕸࢆ⏝࠸࡚ඹศᩓࡀ࠿ࡽ᥹Ⓨࡍࡿ㔞ࡣࠊᮏᐇ㦂ࡼࡾࠊᴫࡡKC300㸭

ᐃ⩏ࡉࢀ࡚࠸ࡿࠋ௒ᅇࡣࡇࢀࡽ12ࡢ᪉ἲࡢ୰࡛ࠊ㉥ụ

KC400㸭KC500㸭KC600㸻1㸭0.59㸭0.18㸭0.05࡛᝟ሗ㔞ᇶ‽ཬࡧ⤯ᑐṧᕪ࿴ࡀ᭱ࡶᑠࡉࡃ࡞ࡗࡓ࠶ࡿࡢ࡛㸦ᅗ5㸧ࠊࡇࡢ᥹Ⓨ㔞ࡢẚ⋡ࢆձ࡛⟬ฟࡋࡓ

Bs-CMB㸦Tn㸧ࢆ౑⏝ࡋࡓࠋ

᥹Ⓨ࣮࣋ࢫࡢྛKCࡢᏑᅾ๭ྜࢆ๭ࡾ㏉ࡋࠊ᥹Ⓨඖ CMBゎᯒࢆ⾜࠺㝿ࡢⓎ⏕※ࢹ࣮ࢱ࡟ࡣࠊ௒ᅇࡢᐇ㦂㸦〇ရ➼㸧ࡢྛKCࡢᏑᅾ๭ྜࢆ⟬ฟ࡛ᚓࡽࢀࡓKC300ࠊKC400ࠊKC500ཬࡧKC600ࡢ↓፹KC300㹼KC600ࡢࡑࢀࡒࢀࡢPCBཎయࡢ␗ᛶయᏑ

యヨᩱࡢ᥹Ⓨ⤌ᡂࡢ⤖ᯝ㸦10㹼40Υࡢᖹᆒ್㸧ࢆ⏝࠸ࠊᅾẚ⋡࡟ࠊղࡢ᥹ⓎඖࡢྛKCࡢᏑᅾ๭ྜࢆ࠿ࡅࠊ᥹

ࡑࢀࡒࢀ࡟࠾࠸࡚඲᥹ⓎPCB㔞࡟ᑐࡋ࡚1%௨ୖࡢ๭Ⓨඖࡢྛ␗ᛶయ࣭ྠ᪘యࡢᏑᅾẚ⋡ࢆ⟬ฟྜ࡛Ꮡᅾࡍࡿ␗ᛶయࢆᢳฟࡋ࡚ゎᯒ࡟⏝࠸ࡓࠋࡲࡓࠊ᥎ᐃ᪉ἲࡢ᳨ド࡟ࡣࢩ࣮ࣛࣥࢺཬࡧከⰺࢣ࣮ࣈձPCB ởᰁ኱Ẽࡢ KC300ࠊKC400ࠊKC500 ཬࡧ KC600
ࡢ᥹Ⓨ࣮࣋ࢫࡢᐤ୚ᗘ㸦Ꮡᅾ๭ྜ㸧ࢆ CMB ἲ࡛⟬ฟ

ࣝࡢ᥹Ⓨᐇ㦂⤖ᯝ࡜ࠊKC300࠿ࡽKC600ࡲ࡛ࡢ4✀ࡢ
PCBཎయࠊཬࡧKC500࡜KC600ࡢ2✀ࡢཎయࢆࡑࢀࡒⓎ⏕※ࢹ࣮ࢱࢀ࢚࢘ࢫ࡟ΰྜῧຍࡋࡓヨᩱࡢ᥹Ⓨᐇ㦂⤖ᯝࢆ౑⏝ࡋ 㸺ᮏᐇ㦂ࡢ KC300㹼KC600 ࡢ᥹Ⓨ⤌ᡂࢆ౑⏝㸼ࡓࠋ ᮏ᪉ἲ࡟ࡼࡾ᥹Ⓨ⤌ᡂ࠿ࡽ᥎ᐃࡋࡓࠊࢩ࣮ࣛࣥࢺࠊከ

ղձࡢᏑᅾ๭ྜࢆ KC 㛫ࡢ᥹Ⓨ㔞ࡢẚ⋡࡛๭ࡾ㏉ࡋࠊⰺࢣ࣮ࣈࣝཬࡧ2✀㢮ࡢởᰁ࢚࢘ࢫࡢྠ᪘య⤌ᡂࢆᅗ7  ᥹Ⓨඖ㸦ởᰁ※㸧ࡢ KC300㹼KC600 ࡢᏑᅾ๭ྜࢆ⟬ฟ࡟♧ࡍࠋྛởᰁヨᩱࡢ᥹Ⓨ⤌ᡂ࠿ࡽ᥎ᐃࡋࡓ᥹Ⓨඖ㸦ởᰁヨᩱ㸧ࡢྠ᪘య⤌ᡂࡣࠊᐇ ࡟ࡼࡿởᰁヨᩱࡢ⤌ᡂ࡜᥹Ⓨẚ⋡ 㸺KC300㸭KC400㸭KC500㸭KC600
㸻1㸭0.59㸭0.18㸭0.05㸼ᴫࡡ୍⮴ࡋ࡚࠾ࡾࠊᮏ᪉ἲ࡟ࡼࡾởᰁ኱Ẽࡢྠ᪘య⤌ᡂ࠿ࡽởᰁ※࡛࠶ࡿPCB〇ရ➼ࡢྠ᪘య⤌ᡂࢆ᥎ᐃ࡛ࡁճKC300㹼KC600 ࡢཎయ⤌ᡂ࡟ղࡢᏑᅾ๭ྜࢆ࠿ࡅࠊ᥹Ⓨඖ㸦Ⓨ⏕※㸧ࡢྠ᪘య⤌ᡂࢆ⟬ฟࡿࡇ࡜ࡀ᳨ドࡉࢀࡓࠋ㸳 ࡲ࡜ࡵᅗ ởᰁ኱Ẽ3&%⤌ᡂ࠿ࡽởᰁ※⤌ᡂࢆ᥎ᐃࡍࡿᡭ㡰 PCBࡢ᥹Ⓨ࡟క࠺ྠ᪘య⤌ᡂࡢኚ໬࡟ࡘ࠸࡚ᐊෆᐇ㦂ࢆ⾜࠸ࠊ௨ୗࡢ⤖ᯝࡀᚓࡽࢀࡓࠋϭϬϬйϴϬйϲϬйϰϬйϮϬйϬй᥎ᐃ ᐇ᥹Ⓨ᥎ᐃ ᐇ〇ရ䡸䡬䢓䢙䢀᥹Ⓨ〇ရከⰺ䡵䡬䢈䢚䢕᥎ᐃ ᐇ᥹Ⓨởᰁ≀᥹Ⓨ<ϯϬϬ㹼<ϲϬϬῧຍ䡯䡰䡹ᅗ ᥹Ⓨ⤌ᡂࡼࡾ᥎ᐃࡋࡓởᰁ※ࡢ3&%ྠ᪘య⤌ᡂ࡜ᐇ᥎ᐃ ᐇởᰁ≀<ϱϬϬн<ϲϬϬῧຍ䡯䡰䡹⤌ᡂ࡜ࡢẚ㍑

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EϵƐKϴƐ,ϳƐ,ϲƐWϱƐdϰƐdϯƐϮƐDϭƐ 㸦㸯㸧〇ရ➼࠿ࡽPCBࡀ኱Ẽ⎔ቃ୰࡟᥹Ⓨࡍࡿ㝿࡟ࡣྠ᪘య⤌ᡂ࡟ኚ໬ࡀ㉳ࡇࡾࠊ᥹Ⓨࡋࡓྠ᪘య⤌ᡂࡣపሷ⣲ഃ࡟ࢩࣇࢺࡍࡿࠋ㸦㸰㸧✀ࠎࡢ፹య࡟KC300࠿ࡽKC600ࡲ࡛ࡢPCBཎయࢆῧຍࡋࠊ␗࡞ࡿ፹యࡸᗘ᮲௳ୗ࡛᥹Ⓨ⤌ᡂࢆẚ㍑ࡋࡓ࡜ࡇࢁࠊ

ᗘࡼࡾࡶࠊ᥹Ⓨඖ㸦ởᰁ※㸧ࡢPCB⤌ᡂࡢᙳ㡪ࢆᙉࡃཷࡅࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ㸦㸱㸧ᮏᐇ㦂࠿ࡽᚓࡽࢀࡓPCBཎయ࠿ࡽࡢ᥹Ⓨ⤌ᡂࢆ⏝࠸ࡓCMBゎᯒ࡟ࡼࡾࠊPCB〇ရࢆởᰁཎᅉ࡜ࡍࡿ኱Ẽởᰁ࡟㛵ࡋ࡚ࠊởᰁ኱Ẽࡢ⤌ᡂ࠿ࡽởᰁ※ࡢ⤌ᡂࢆ᥎ᐃࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡗࡓࠋཧ⪃ᩥ⊩㸯㸧㸦♫㸧᪥ᮏ㟁Ẽᕤᴗ఍ࠊኚᅽჾ➼࡬ࡢᚤ㔞PCBΰධྍ⬟ᛶ࡟㛵ࡍࡿㄪᰝ⤖ᯝ࡟ࡘ࠸࡚㸦2003㸧
㸰㸧ヲ⣽ࣜࢫࢡホ౯᭩ࢩ࣮ࣜࢬ16 ࢥࣉࣛࢼ㸫PCBࠊ୸ၿᰴᘧ఍♫㸱㸧ᮾ㔝࿴㞝ࡽࠊ㒔ෆᘓ≀࡟࠾ࡅࡿPCBởᰁ※ㄪᰝ࡟ࡘ࠸࡚ࠊᮾி㒔⎔ቃ⛉Ꮫ◊✲ᡤᖺሗ2009ࠊpp.10-17㸲㸧୰㔝ṊࡽࠊPCB⎔ቃࣔࢽࢱࣜࣥࢢ࡟࠾ࡅࡿศᯒἲ࡜ၥ㢟Ⅼϩࠊ➨12ᅇ⎔ቃ໬Ꮫウㄽ఍ㅮ₇せ᪨㞟ࠊpp.264265㸦2003㸧㸳㸧᯽ᮌᐉஂࡽࠊ㛵ᩘ㛵ಀゎᯒ࡟ࡼࡿChemical MassBalanceࠊᛂ⏝⤫ィᏛࠊVol.31ࠊpp.59-74㸦2002㸧