࿢‫ؾ‬൲௨ཋឋƴ‫ݣ‬Ƣǔ᩼ේᡢᢚᔻჽƷ᧏ႆƱஊဇࣱ
኱㇂ᾈᶞ [email protected]
㤳㒔኱Ꮫᮾி ೺ᗣ⚟♴Ꮫ㒊 ᨺᑕ⥺Ꮫ⛉
┠ⓗ 䠖 PM2.5䜔㯤◁䚸ᨺᑕᛶ≀㉁䛺䛹䛾⎔ቃởᰁ≀㉁䜢ྵ䜣䛰㞵Ỉ䜢ᆅ୰䜈⛣ື䛥䛫䚸䛛䛴
㐽ⶸ䛩䜛㠀ᾐ㏱㐽ⶸ▼䜢㛤Ⓨ䛧⏕ά⎔ቃ䛾Ᏻᐃ䜢☜ಖ䛩䜛䚹
1. ኚᛶ䝫䝸䜶䝇䝔䝹䛚䜘䜃㐽ⶸሬᕸ๣䛾ሬᕸ䛻䜘䜛㐽ⶸ▼䛾〇స
ኚᛶ䝫䝸䜶䝇䝔䝹䛿⪏㟁ᛶ䚸᧕Ỉᛶ䛻ඃ䜜䚸㟁Ⲵ䜢᭷䛩䜛ởᰁ≀㉁䛻ᑐ䛧௜╔䜢
ᢚไ䛧㞵Ỉ䜢ᙎ䛟䜒䛾䛸䛺䜛䚹䜎䛯䚸ኚᛶ䝫䝸䜶䝇䝔䝹䜢ሬᕸ䛩䜛䛸⪏ஂᛶ䛜ྥୖ䛩
䜛Ⅼ䛛䜙䜒㐽ⶸ▼䛾㛤Ⓨ䛻᭷⏝ᛶ䜢♧䛧䛶䛔䜛䚹
䐟▼䛾㑅ᢥ
㐽ⶸ▼䛾䝧䞊䝇䛸䛺䜛⋢▼䛸䛧䛶ⓑ㑣ᬛ▼䚸ⓑ㤿▼䚸㜵≢䝻䝑䜽䜢౑⏝䛧䛯䚹
䛣䜜䛿◳ᗘ䜢ᇶ♏䛸䛧䛯㑅ᢥ䛷䛒䜚䚸ⓑ㑣ᬛ▼䛾◳ᗘ䛿8䚸ⓑ㤿▼䛿5䚸㜵≢䝻䝑䜽
䛿5.5䛷䛒䜛䚹୍⯡䛻㧗◳ᗘ䜋䛹྾Ỉ⋡䛿ప䛔䚹
Photo.1 ኚᛶ䝫䝸䜶䝇䝔䝹䛾ሬᕸ
䐠྾Ỉ⋡ ᐃ
྾Ỉ⋡䛿48᫬㛫Ỉ䛻ධ䜜䛯▼䛾㔜㔞䛛䜙⟬ฟ䛥䜜䜛䚹ⓑ㑣ᬛ▼䚸ⓑ㤿▼䚸㜵≢䝻䝑䜽䛻䛴䛔䛶㔜㔞䜢 ᐃᚋ䚸
5䝸䝑䝖䝹䛾Ỉ䛻ධ䜜䛯䚹48᫬㛫ᚋ䚸▼䛾㔜㔞䛚䜘䜃Ỉ㔞䜢 ᐃ䛧䚸྾Ỉ⋡䜢⟬ฟ䛧䛯䚹
䐡ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ䠄 Photo.1 䠅䛚䜘䜃྾Ỉ⋡ ᐃ
౑⏝䛧䛯ኚᛶ䝫䝸䜶䝇䝔䝹䛿䚸䝟䞊䝬䝅䞊䝹䝗䜴䝹䝖䝷䝍䜲䝥: PSC200-U䠄䝦䝹䝒໬Ꮫᰴᘧ఍♫䠅䛷䛒䜚䚸ሬᕸᚋ
24᫬㛫䜢䛛䛡䛶஝⇱䛥䛫䛯䚹䛭䛾ᚋ䚸๓㏙䛸ྠᵝ䛻྾Ỉ⋡䜢 ᐃ䛧䛯䚹
Table1 ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ๓䛾྾Ỉ⋡
ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ↓䛧
྾Ỉ๓㔜㔞 ྾Ỉᚋ㔜㔞 㔜㔞ᕪ
ⓑ㑣ᬛ▼
㻟㻟㻞㻡㻌㼓
㻟㻟㻟㻠㻌㼓
㻥㻌㼓
ⓑ㤿▼
㻟㻞㻠㻡㻌㼓
㻟㻞㻥㻝㻌㼓
㻠㻢㻌㼓
㜵≢䝻䝑䜽
㻞㻟㻢㻜㻌㼓
㻞㻡㻞㻝㻌㼓
㻝㻢㻝㻌㼓
྾Ỉ⋡
㻜㻚㻞㻣㻑
㻝㻚㻠㻞㻑
㻢㻚㻤㻞㻑
Table2 ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸᚋ䛾྾Ỉ⋡
ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ᭷䜚
྾Ỉ๓㔜㔞 ྾Ỉᚋ㔜㔞 㔜㔞ᕪ
ⓑ㑣ᬛ▼
㻟㻞㻣㻢㻌㼓
㻟㻞㻤㻟㻌㼓
㻣㻌㼓
ⓑ㤿▼
㻟㻞㻠㻜㻌㼓
㻟㻞㻣㻜㻌㼓
㻟㻜㻌㼓
㜵≢䝻䝑䜽
㻞㻟㻥㻜㻌㼓
㻞㻠㻟㻡㻌㼓
㻠㻡㻌㼓
྾Ỉ⋡
㻜㻚㻞㻝㻑
㻜㻚㻥㻟㻑
㻝㻚㻤㻤㻑
ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ๓ᚋ䛾㐽ⶸ▼䛾྾Ỉ⋡䜢Table1, 2䛻♧䛧䛯䚹ሬᕸ๓ᚋ䛻䛚䛔䛶྾Ỉ⋡䛿ῶᑡ䛧䚸ⓑ㑣ᬛ
▼䛷0.06%䚸ⓑ㤿▼䛷0.49%䚸㜵≢䝻䝑䜽䛷4.94%䛾ῶᑡ䛷䛒䛳䛯䚹䛣䜜䛿ኚᛶ䝫䝸䜶䝇䝔䝹䛾ሬᕸ䛻䜘䜚Ỉศ䜢ྵ
䜎䛺䛟䛺䜚䚸⎔ቃởᰁ≀㉁䜢ྵ䜣䛰㞵Ỉ➼䜢ᰁ䜏㎸䜎䛬䛪ຠᯝⓗ䛻ᆅ୰䜈⛣ື䛥䛫䜛䛣䛸䛜ྍ⬟䛸䛺䜛ᡂᯝ䜢ᚓ䛯䚹
2. 137CsởᰁỈ䜢⏝䛔䛯㐽ⶸ▼䛾ຠᯝ
⎔ቃởᰁ≀㉁䜢෌㣕ᩓ䛥䛫䛺䛔䛣䛸䜒㐽ⶸ▼䛾ຠᯝ䛾୍䛴䛷䛒䜛䚹 1420 Bq/kg䛾137Cs
ởᰁỈ䛻㐽ⶸ▼䜢ᾐ䛧䚸䛭䛾ᚋ䛾ᨺᑕ⬟⃰ᗘ䜢 ᐃ䛧䛯䚹䛭䛧䛶䚸ỈὙᚋ䛻䜒ྠᵝ䛾 ᐃ
䜢⾜䛔ᨺᑕ⬟⃰ᗘῶᑡ⋡䜢⟬ฟ䛧䛯䚹ởᰁỈ䛻ᾐ䛧䛯㐽ⶸ▼䜢Photo.2䛻♧䛧䛯䚹
䜎䛯䚸ᨺᑕ⬟⃰ᗘ ᐃ䛿䚸Photo.3䛻♧䛧䛯ATOMTEX♫〇 㻺㼍㻵 䝅䞁䝏䝺䞊䝅䝵䞁᳨ฟჾ
AT1125A䜢⏝䛔䛯䚹
Photo.2 ởᰁỈ䛻ᾐ䛧䛯㐽ⶸ▼
Table3 ởᰁỈ䛻ᑐ䛩䜛㐽ⶸ▼䛾ᨺᑕ⬟⃰ᗘ䠄ሬᕸ↓䛧䠅
Table4 ởᰁỈ䛻ᑐ䛩䜛㐽ⶸ▼䛾ᨺᑕ⬟⃰ᗘ䠄ሬᕸ᭷䜚䠅
ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ↓䛧
ởᰁỈᾐ㏱ᚋ
ỈὙᚋ
ⓑ㑣ᬛ▼ 㻠㻝㻚㻡㻌㻮㼝㻛㼗㼓
㻠㻜㻚㻟㻌㻮㼝㻛㼗㼓
ⓑ㤿▼
㻠㻝㻚㻠㻌㻮㼝㻛㼗㼓
㻟㻥㻚㻣㻌㻮㼝㻛㼗㼓
㜵≢䝻䝑䜽 㻝㻝㻜㻌㻮㼝㻛㼗㼓
㻝㻜㻟㻌㻮㼝㻛㼗㼓
ኚᛶ䝫䝸䜶䝇䝔䝹ሬᕸ᭷䜚
ởᰁỈᾐ㏱ᚋ
ỈὙᚋ
ⓑ㑣ᬛ▼ 㻠㻜㻚㻣㻌㻮㼝㻛㼗㼓
㻟㻥㻚㻥㻌㻮㼝㻛㼗㼓
ⓑ㤿▼
㻠㻟㻚㻤㻌㻮㼝㻛㼗㼓
㻠㻟㻚㻝㻌㻮㼝㻛㼗㼓
㜵≢䝻䝑䜽 㻝㻝㻝㻌㻮㼝㻛㼗㼓
㻝㻜㻢㻌㻮㼝㻛㼗㼓
ῶᑡ⋡
㻞㻚㻤㻠㻑
㻟㻚㻥㻢㻑
㻢㻚㻟㻢㻑
ῶᑡ⋡
㻝㻚㻥㻢㻑
㻝㻚㻢㻡㻑
㻠㻚㻡㻜㻑
ᨺᑕ⬟⃰ᗘ䛾⤖ᯝ䜢Table3, 4䛻䛧䛯䚹ኚᛶ䝫䝸䜶䝇䝔䝹䜢ሬᕸ䛧䛯㐽ⶸ▼䛾ῶᑡ⋡䛿
ᑠ䛥䛟䚸᧕Ỉຠᯝ䛻䜘䜚ᨺᑕ⬟ởᰁỈ䛜▼䛻௜╔䛧䛻䛟䛔⤖ᯝ䛸䛺䛳䛯䚹䛣䜜䛻䜘䜚㐽ⶸ▼䛿
㞵Ỉ䛻ྵ䜎䜜䜛⎔ቃởᰁ≀㉁䜢௜╔䛥䛫䜛䛣䛸䛺䛟ᆅ୰䜈ᾐ㏱䛥䛫䜛䛣䛸䛜♧၀䛥䜜䛯䚹
▼䛾✀㢮䛻䜘䜛ኚ໬䛷䛿䚸㜵≢䝻䝑䜽䛾ᨺᑕ⬟⃰ᗘ䛜㧗䛔ഴྥ䛻䛒䜚䚸๓㏙䛾䜘䛖䛻
㜵≢䝻䝑䜽䛾ከᏍ㉁ᛶ䛻䜘䜛䜒䛾䛸⪃䛘䜙䜜䛯䚹
Photo.3 㻺㼍㻵 ᳨ฟჾ䜢⏝䛔䛯ᨺᑕ⬟⃰ᗘ ᐃ
䜎䛸䜑 䠖 ኚᛶ䝫䝸䜶䝇䝔䝹䜢ሬᕸ䛧㐽ⶸ▼䛸䛩䜛䛣䛸䛷྾Ỉ⋡䛿ῶᑡ䛧䚸⎔ቃởᰁ≀䜢ྵ䜐㞵Ỉ䛜௜╔䛩䜛
䛣䛸䜢ᢚไ䛩䜛䛣䛸䛜ྍ⬟䛷䛒䛳䛯䚹▼䛾✀㢮䛿䚸◳ᗘ䛾㧗䛔ⓑ㑣ᬛ▼䛜ඃ఩䛷䛒䜛䛜㈝⏝ᑐຠᯝ
䜢⪃៖䛩䜛䛣䛸䜒⪃䛘䜙䜜䛯䚹䜎䛯䚸㜵≢䝻䝑䜽䜈䛾ኚᛶ䝫䝸䜶䝇䝔䝹䛾ሬᕸ䛿㐽ⶸຠᯝྥୖ䛜᫂䜙
䛛䛷䛒䜚䚸ᗈ⠊ᅖ䛻䜟䛯䜛᪋ᕤ䛻䛿᭷⏝䛷䛒䛳䛯䚹