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第 22 回環境化学討論会

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第 22 回環境化学討論会
➨ 22 ᅇ⎔ቃ໬Ꮫウㄽ఍䠈☾㈅┤⨾䠈ཱྀ㢌Ⓨ⾲䠄ᮾி䠗2013 ᖺ䠅㻌
㻟㻙㻝㻭㻙㻣㻙㻠㻌
す࢔ࣇࣜ࢝࡟࠾ࡅࡿ᭷ᶵሷ⣲⣔㎰⸆ࡢ኱Ẽ୰ືែ
‫☾ۑ‬㈅┤⨾ 1㸪Jonathan N. Hogarh2㸪Ύᐙఙᗣ 3㸪ᑠཎ⿱୕ 3㸪┈Ọⱱᶞ 1
㸦1 ᶓ὾ᅜ❧኱Ꮫ኱Ꮫ㝔⎔ቃ᝟ሗ◊✲㝔࣭Ꮫᗓ㸪2 ࢡ࣓࢚࣡ࣥࢡ࣐ࣝ⛉Ꮫᢏ⾡኱Ꮫ㸪3 ㎰
ᴗ⎔ቃᢏ⾡◊✲ᡤ㸧
࠙ࡣࡌࡵ࡟ࠚ
ṧ␃ᛶࡢ᭷ᶵሷ⣲⣔㎰⸆㸦OCPs㸧ࡣࠊ኱Ẽ⤒⏤࡛㍺㏦ࡉࢀࠊ඲⌫ⓗ࡞ởᰁࡢᗈࡀࡾࡀᣦ᦬ࡉࢀ࡚ࡁ
ࡓࠋࡑࡇ࡛ࠊᅜ㝿ⓗ࡟༠ㄪࡋ࡚ OCPs ࢆྵࡴṧ␃ᛶ᭷ᶵởᰁ≀㉁㸦Persistent Organic Pollutants,
POPs㸧ࡢ๐ῶࠊᗫ⤯ࢆ┠ᣦࡍࠕṧ␃ᛶ᭷ᶵởᰁ≀㉁࡟㛵ࡍࡿࢫࢺࢵࢡ࣒࣍ࣝ᮲⣙ࠖࡀ 2004 ᖺ 5 ᭶࡟
Ⓨຠࡋࡓࠋ⌧ᅾࠊOCPs ࡢ₯ᅾⓗ࡞Ⓨ⏕㉳※࡜ࡋ࡚ࠊ⇕ᖏᆅᇦࡸள⇕ᖏᆅᇦ࡟఩⨨ࡍࡿⓎᒎ㏵ୖᅜࡀ
ὀ┠ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ㏵ୖᅜ࡛ࡣᚤ㔞ởᰁࡢศᯒタഛࡀ㠀ᖖ࡟㝈ࡽࢀ࡚࠸ࡿࡓࡵࠊࡇࢀࡲ࡛ OCPs
ࡢ ᐃ౛ࡶ㝈ࡽࢀࡓࡶࡢ࡜࡞ࡗ࡚࠸ࡿࠋࡑࡇ࡛ࠊ₇⪅ࡽࡣ㧗౯࡞᥇ྲྀ⿦⨨ࡸ㟁ຊࢆᚲせ࡜ࡋ࡞࠸ࣃࢵ
ࢩࣈ࣭ࢧࣥࣉ࣮ࣛࢆ⏝࠸࡚ࠊす࢔ࣇࣜ࢝ 5 ࣨᅜ㸦࣮࢞ࢼඹ࿴ᅜࠊࢺ࣮ࢦඹ࿴ᅜࠊࢼ࢖ࢪ࢙ࣜ࢔㐃㑥ඹ
࿴ᅜࠊ࣓࣮࢝ࣝࣥඹ࿴ᅜࠊ࣋ࢼࣥඹ࿴ᅜ㸧࡟࠾ࡅࡿ኱Ẽࢆᤕ㞟ࡋࠊOCPs ࡢởᰁᣑᩓࡢᐇែᢕᥱࢆヨ
ࡳࡓࠋ
࠙᪉ἲࠚ
2010 ᖺ࡜ 2012 ᖺ࡟す࢔ࣇࣜ࢝ᆅᇦ㸦࣮࢞ࢼ 6 ᆅⅬࠊࢼ࢖ࢪ࢙ࣜ࢔ 5 ᆅⅬࠊ࣋ࢼࣥ 5 ᆅⅬࠊ࣓࢝ࣝ
࣮ࣥ 7 ᆅⅬࠊࢺ࣮ࢦ 5 ᆅⅬ㸧
㸦Fig. 1㸧࡛ PUF ࢹ࢕ࢫࢡ㸦Φ140™13 mmࠊ⾲㠃✚ 367 cm2ࠊᐦᗘ 0.03
g/cm3㸧ࢆ⿦ሸࡋࡓࣃࢵࢩࣈ࣭ࢧࣥࣉ࣮ࣛࢆ⏝࠸࡚ࠊ኱Ẽ୰ࡢ OCPs ࢆྛᆅⅬ⣙ 55 ᪥ࡎࡘࢧࣥࣉࣜࣥ
ࢢࡋࡓࠋࢧࣥࣉࣜࣥࢢ᫬ᮇࡣࠊ࣮࢞ࢼ࣭࣋ࢼ࣭ࣥࢺ࣮ࢦ࡛ࡣ㞵Ꮨࠊࢼ࢖ࢪ࢙ࣜ࢔࡛ࡣ஝Ꮨࠊ࣓࣮࢝ࣝ
࡛ࣥࡣ㞵Ꮨ࡜஝Ꮨ୧᫬ᮇ࡛࠶ࡿࠋᮏ◊✲࡛ᑐ㇟࡜ࡋࡓ≀㉁ࡣࠊ࣊࢟ࢧࢡࣟࣟ࣋ࣥࢮࣥ㸦HCB㸧
ࠊ࣊࢟ࢧ
ࢡࣟࣟࢩࢡࣟ࣊࢟ࢧࣥ㸦HCHs㸸α-HCH, β-HCH, γ-HCH㸧
ࠊ࣊ࣉࢱࢡࣟࣝ㢮㸦HPCLs㸸࣊ࣉࢱࢡࣟࣝࠊ
࣊ࣉࢱࢡ࢚࣏ࣟࣝ࢟ࢩࢻ㸧ࠊࢡࣟࣝࢹࣥ㛵㐃໬ྜ≀㸦CHLs㸸cis-ࢡࣟࣝࢹࣥࠊtrans-ࢡࣟࣝࢹࣥࠊcis-
ࠊDDT 㛵㐃໬ྜ≀㹙ѷDDTs㸸p,p’-DDT, o,p’-DDT
ࣀࢼࢡࣟࣝࠊtrans-ࣀࢼࢡࣟࣝࠊ࢜࢟ࢩࢡࣟࣝࢹࣥ㸧
(௨ୖࠊDDTs); p,p’-DDD, o,p’-DDD (௨ୖࠊDDDs); p,p’-DDE, o,p’-DDE (௨ୖࠊDDEs)㹛
ࠊࢻࣜࣥ㢮
㸦Drins㸸࢔ࣝࢻࣜࣥࠊࢹ࢕ࣝࢻࣜࣥࠊ࢚ࣥࢻࣜࣥ㸧ࠊ࣐࢖ࣞࢵࢡࢫ㸦Mirex㸧ࠊ࢚ࣥࢻࢧࣝࣇ࢓ࣥ㢮
㸦ENDs㸸࢚ࣥࢻࢧࣝࣇ࢓ࣥϨࠊ࢚ࣥࢻࢧࣝࣇ࢓ࣥϩࠊ࢚ࣥࢻࢧࣝࣇ࢓ࣥࢧࣝࣇ࢙࣮ࢺ㸧࡛࠶ࡿࠋࢧࣥ
ࣉࣜࣥࢢᚋࡢ PUF ࡣࠊ࢔ࢭࢺࣥ 300 mL ࡛ 24 ᫬㛫ࢯࢵࢡࢫ࣮ࣞᢳฟࡋࡓࠋࢡ࣮ࣜࣥ࢔ࢵࣉࢫࣃ࢖ࢡ
࡜ࡋ࡚
13C
ࡲࡓࡣ㔜Ỉ⣲ࣛ࣋ࣝ໬యࢆῧຍᚋࠊࣇࣟࣜࢪ࣒ࣝ࢝ࣛࠊࢢࣛࣇ࢓࢖ࢺ࣮࣒࢝࣎ࣥ࢝ࣛ࡟ࡼ
ࡾ ⢭ 〇 ࠊ ศ ⏬ ࢆ ⾜ ࡗ ࡓ ࠋ ᐃ ࡣ ENV8-MS 㸦 㛵 ᮾ ໬ Ꮫ 〇 㸧 ࢆ ⿦ ሸ ࡋ ࡓ HRGC/HRMS
㸦HP6890-AutoSpec-Ultima Micromass ♫〇㸧ࢆ⏝࠸ SIM ἲ࡛⾜ࡗࡓࠋࡲࡓࣃࢵࢩࣈ࣭ࢧࣥࣉ࣮ࣛ
Atmospheric Behavior of Organochlorine Pesticides in Western Africa
Nahomi ISOGAI 1, Jonathan N. Hogarh 2, Nobuyasu SEIKE 3, Yuso KOBARA 3, Shigeki
MASUNAGA 1
1 Faculty
and Graduate School of Environment and Information Sciences, Yokohama National
University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama 240-8501
2 Kwame
Nkrumah University of Science and Technology, Kumasi, Ghana
3 National
Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba 305-8604
144
145
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