CO2 ᤼ฟ㔞ࢆ⪃៖ࡋࡓሙྜࡢ⏘ᴗ⣔ࣉࣛࢫࢳࢵࢡᗫᲠ≀ࡢ㍺㏦ィ⏬
Ⲩ஭ᗣ⿱  ἙᮧỌ  ᑠἨ᫂  ⱱᮌᩄ㤳㒔኱Ꮫᮾி኱Ꮫ㝔 せ  ᪨ࢃࡀᅜ࡟࠾ࡅࡿ⎔ቃၥ㢟ࡣࠊ࠶ࡽࡺࡿศ㔝࡛㔜せㄢ㢟࡜ࡋ࡚఩⨨࡙ࡅࡽࢀ࡚࠸ࡿࠋᮾி㒔࡟࠾࠸࡚ࡶ㸪ୡ⏺࡛᭱ࡶ⎔ቃ㈇Ⲵࡢᑡ࡞࠸㒔ᕷࢆ┠ᶆ࡟ᥖࡆ࡚ᵝࠎ࡞άື࡟ྲྀࡾ⤌ࢇ࡛࠸ࡿࠋ୍᪉ࠊᮾி㒔ෆ࡛Ⓨ⏕ࡍࡿ⏘ᴗ⣔ࣉࣛࢫࢳࢵࢡᗫᲠ≀ࡢከࡃࡣᇙ❧ฎศࡉࢀࠊࡑࡢ๭ྜࡣ඲ᅜࡢฎ⌮≧ἣ࡟ẚ࡭࡚㧗࠸ࡶࡢ࡜࡞ࡗ࡚࠸ࡿࠋᚠ⎔ᆺ♫఍ࡢᐇ⌧࡟ࡣࠊࡇ࠺ࡋࡓ⏘ᗫࣉࣛࢆ᭷ຠ࡞㈨※࡜ࡋ࡚✚ᴟⓗ࡟฼ά⏝ࡋ࡚⾜ࡃࡇ࡜ࡀồࡵࡽࢀࡿࡀࠊࡇࡢ࡜ࡁ࡟ᚲせ࡜ࡉࢀࡿࡢࡀྜ⌮ⓗ࡞㍺㏦ィ⏬࡛࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊᮏ᭩᪤ሗ࡟ᥦ᱌ࡋࡓ⥺ᙧィ⏬ἲ࡟ࡼࡿ㍺㏦ィ⏬ࣔࢹࣝࢆ෌᳨ウࡋࠊ⏘ᗫࣉࣛࡢᇙࡵ❧࡚ࢮࣟ᪋⟇࡟క࠺タᐃࢩࢼࣜ࢜ࡢୗ࡛᭱㐺໬ィ⟬ࢆヨࡳࡓࠋヨ⟬ࡢ⤖ᯝࠊCO2 ᤼ฟ㔞ࢆ᭱ᑠ໬ࡍࡿほⅬ࠿ࡽࠊᗈᇦⓗ࡞ᚠ⎔ࢩࢫࢸ࣒ࡢ᭷ຠᛶࢆ᫂ࡽ࠿࡟ࡋࡓࠋ
࣮࣮࢟࣡ࢻ㸸⏘ᴗ⣔ࣉࣛࢫࢳࢵࢡᗫᲠ≀ࠊ࣐ࢸࣜ࢔ࣝࣇ࣮ࣟࠊ⥺ᙧィ⏬ἲࠊ      ㍺㏦ၥ㢟ࠊࣔࢹࣝศᯒࠊᗈᇦⓗ࡞㈨※ᚠ⎔ࢩࢫࢸ࣒Transport Planning for Industrial Waste Plasticin Consideration of CO2 Emission
ARAI Yasuhiro㸨㸪 KAWAMURA Hisashi㸨㸪 KOIZUMI Akira㸨and MOGI Satoshi㸪
*Graduate School of Tokyo Metropolitan University

Summary
Environmental problems represent a significant issue for Japan in various fields. The Tokyo Metropolitan Government has announced its
intention to become the city with the lowest environmental impact in the world. Industrial waste plastic generated in Tokyo has been processed
into landfill. However, it is now necessary to actively utilize plastic as a useful resource to create a recycling society with a low environment
influence. In order to construct a reasonable recycling system, it is necessary to address the transportation problem. This study considers atransport planning model for industrial waste plastic applying the linear programming. The results of running optimized calculations under
given scenarios clarified the validity of wide area recycling system.

Key Words㸸industrial waste plastic㸪material flow㸪linear programming㸪
transportation problem㸪model analysis㸪wide area recycling system

 ⾲ ฎ⌮㐣⛬࡟࠾ࡅࡿ⎔ቃ㈇Ⲵࡢపῶ
ࢆඃඛࡉࡏࡓ㡰ᗎᑻᗘ⾜ิ㸯 ࡣࡌࡵ࡟㸯➹⪅ࡽࡣ᪤ሗ ࡟࠾࠸࡚ࠊ㍺㏦ຠ⋡ᛶࡢton㺃kmࢆ᭱ᑠඃඛ࡜ࡍࡿࡓࡵ࡟⥺ᙧィ⏬ἲࢆ⏝࠸ࡓᩘ⌮ࣔࢹࣝศᯒ࡟ࡼࡿ
㍺㏦ィ⏬ࢆ᳨ウࡋࠊᮾி࠾ࡼࡧ㛵ᮾࡢࣜࢧ࢖ࢡࣝ᪋タ࡬㏆㛵ᮾ⌮ࡀ༑ศ࡟ྍ⬟࡛࠶ࡿ࡜☜ㄆࡉࢀࡓࡶࡢࡢࠊ㑅ᢥࡉࢀࡿᮾ໭

RPF䠄R䠅䝬䝔䝸䜰䝹
䠄M䠅䝃䞊䝬䝹
䠄T䠅ᇙ❧䠄Z䠅

1
2
3
4
5678910111213141516
1718

19202122
23
24
25
26
27

28
2930
31
32
33
34
35
36

37
38
3940
41
42
43
44
45

46
47
48
49
50
51
52
53
54

୰㒊
㏆␥

ࣜࢧ࢖ࢡࣝᡭἲࡣࢧ࣮࣐ࣝ(T)ࢆ୰ᚰ࡜ࡋࡓィ⏬௦᭰᱌ホ౯࡛ࡁࡿࡶࡢࡢࠊ㑅ᢥࡉࢀࡓࣜࢧ࢖ࢡࣝࡢ⎔ቃ㈇Ⲵࡀ

䝉䝯䞁䝖
䠄C䠅

ᮾி

㍺㏦ࡍࡿィ⏬᱌ࢆᥦ♧ࡋ࡚࠸ࡿࠋࡋ࠿ࡋࠊᮾிᅪ࡛ࡢฎ

࡜࡞ࡗࡓࠋࡇࡢ⤖ᯝࢆゎ㔘ࡍࡿ࡜ࠊ㍺㏦ຠ⋡ࡢഃ㠃࡛ࡣ

㧗⅔䡡䝁䞊䜽䝇䠄K䠅

ᅄᅜ
୰ᅜ

㐲

஑ᕞ
໭ᾏ㐨

⪃៖ࡉࢀ࡚࠸࡞࠸࡜࠸ࡗࡓၥ㢟Ⅼࡀṧࡉࢀ࡚࠸ࡿࠋᮏ◊✲ࡢࡼ࠺࡞㍺㏦ၥ㢟ࢆ⪃࠼ࡿୖ࡛ࡣࠊࢥࣥࣃࢡࢺ࡞㍺㏦

࠸ሙྜ㸦p4K㸹⾜ิෆࡢᕥୖ㸧ࢆࠕ1ࠖ࡟ࠊ⎔ቃ㈇Ⲵࡀ᭱

࡛࠶ࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿࡀࠊ㍺㏦ࡸฎ⌮࡟ಀࡿCO2᤼ฟ኱࡛㍺㏦㊥㞳ࡶ᭱㛗ࡢሙྜ㸦p1Z㸹ྠྑୗ㸧ࢆࠕ54ࠖ࡜㔞➼ࡶ㔜せ࡞ࣇ࢓ࢡࢱ࣮࡛࠶ࡿࡇ࡜ࡣゝ࠺ࡲ࡛ࡶ࡞࠸ࠋࡋࡓࠋ

ࡲࡓࠊ㛵ᮾࡢ࣐ࢸࣜ࢔ࣝ(M)ࠊࢭ࣓ࣥࢺ(C)ࠊ㧗⅔࣭ࢥ࣮࡞࠾ࠊ௨㝆࡛ฎ⌮㐣⛬࡜㍺㏦㐣⛬ࡢྛࠎࡢ⎔ቃᙳ㡪ࢆࢡࢫ(K)ࢆึࡵࠊ௚ࡢ࢚ࣜ࢔࡛ࡶฎ⌮࡛ࡁࡿ⬟ຊࡀṧࡗ࡚ẚ㍑ࡍࡿ㝿ࠊ࢚ࢿࣝࢠ࣮ᾘ㈝㔞ࡸ኱Ẽởᰁ≀㉁ࡢ᤼ฟ㔞࠾ࡾࠊࡑࢀࡽࡢά⏝ࢆど㔝࡟ධࢀࡓࣔࢹࣝศᯒࡀᚲせ࡛࡞࡝ᵝࠎ࡞どⅬࡀ࠶ࡿࡀࠊࡇࡇ࡛ࡣࡑࡢᣦᶆ࡜ࡋ࡚ CO2࠶ࡿࠋ᤼ฟ㔞ࢆ⏝࠸ࡓࠋฎ⌮㐣⛬࡟㛵ࡋ࡚ࡣࠊ⎔ቃ┬㸲 ࡀබ⾲ࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ➹⪅ࡽࡀᥦ᱌ࡋࡓࣔࢹࣝࢆᛂ⏝ࡋࠊࡋࡓࠕ⏘ᴗᗫᲠ≀㸦ᗫࣉࣛࢫࢳࢵࢡ㢮㸧ࡢ↝༷࡟క࠺᤼⎔ቃ㈇Ⲵࢆホ౯㡯┠࡟ධࢀࡓศᯒࢆ⾜࠺ࠋලయⓗ࡟ࡣࠊฟಀᩘ㸦ᗫࣉࣛࢫࢳࢵࢡ㢮 1 ࢺࣥࢆ↝༷ࡋࡓ㝿࡟᤼ฟࡉ

CO2᤼ฟ㔞ࡢ๐ῶࢆඃඛࡋࡓሙྜࡢ㍺㏦ィ⏬࡟ࡘ࠸᳨࡚

ࢀࡿ kg ࡛⾲ࡋࡓ஧㓟໬Ⅳ⣲ࡢ㔞㸧㸸2,600[kg-CO2/ton]ࠖ

ウࡋ࡚⾜ࡃࡇ࡜࡜ࡍࡿ㸰㸧ࠋࢆᇶ‽್࡜ࡋ࡚ࠊ๓㏙ࡋࡓᣦᶆࡢホ౯Ⅼ㸦CO2 ࡟㛵ࡍࡿ┦ᑐ್㸱 ࡣ T㸸100 ࡢ᫬ࠊK㸸62ࠊC㸸52ࠊR㸸64ࠊM㸸㸰 ⎔ቃ㈇Ⲵࡢపῶ໬࡜ホ౯ᣦᶆ75㸧࠿ࡽ⟬ฟࡋࡓཎ༢఩㸦K㸸1.61ࠊC㸸1.35ࠊR㸸1.66ࠊ

ᮏ◊✲࡛ࡣ⎔ቃ࡬ࡢᙳ㡪ࢆ⪃៖ࡍࡿࡓࡵࠊ᪤Ꮡࡢ◊✲M㸸1.95ࠊT㸸2.60[ton-CO2/ton]㸧ࢆ⏝࠸ࡿࠋ୍᪉ࠊ㍺㏦

ᡂᯝ࡟ࡼࡗ࡚♧ࡉࢀࡓホ౯⤖ᯝࢆඖ࡟ࠕ㡰ᗎᑻᗘ⾜ิࠖ㐣⛬ࡢ CO2 ᤼ฟཎ༢ ఩ 㸳 ࡣࠊ㈌≀⮬ື㌴ ࡢሙྜࡣࢆᐃ⩏ࡋࠊࡇࢀࢆ⤌ࡳ㎸ࢇࡔ᭱㐺໬ィ⟬ࢆ⾜ࡗࡓࠋලయ302[g-CO2/ton㺃km]ࠊ㕲㐨ࡢሙྜࡣ 21[g-CO2/ton㺃km]ࢆ⏝ⓗ࡟ࡣࠊ௨ୗࡢᡭ㡰࡟ࡼࡿࠋ⏘ᴗ⣔ࣉࣛࢫࢳࢵࢡࡈࡳࢆ࠸࡚ホ౯ࡋ࡚࠸ࡃࠋᑐ㇟࡜ࡋࡓࣜࢧ࢖ࢡࣝ࡟㛵ࡍࡿヲ⣽࡞⎔ቃ㈇Ⲵ➼ࡢ᝟ሗ࡟ࡘ࠸࡚ࡣࠊPET ࣎ࢺࣝ௨እࡢࣉࣛࢫࢳࢵࢡ〇ᐜჾ㸱ໟ⿦ࢆᑐ㇟࡜ࡋࡓㄪᰝ⤖ᯝ ࢆཧ⪃࡜ࡋࡓࠋࡇࡢㄪᰝ⤖㸱 ⤖ᯝ࡜⪃ᐹ(1)ᇙࡵ❧࡚ࢮࣟ᪋⟇࡟క࠺ィ⏬௦᭰᱌ࡢసᡂ

ᯝ࡛ࡣࠊ໬▼㈨※ᾘ㈝ࠊCO2ࠊ኱Ẽởᰁ≀㉁㸦NOXࠊSOX㸧ࠊࠕ⎔ቃ㈇Ⲵࡢపῶࢆඃඛࡉࡏࡓ௦᭰᱌ࠖࡢసᡂ࡟ඛ❧୪ࡧ࡟ᅛᙧᗫᲠ≀ࡢ᤼ฟ㔞࡟㛵ࡍࡿホ౯Ⅼ㸦ྛᣦᶆࡢ᭱ࡕࠊ᪤ሗ㸯 ࡟♧ࡉࢀ࡚࠸ࡿࠕ㍺㏦ࢺࣥ㊥㞳ࢆ᭱ᑠ࡟ࡍࡿ

኱್ࢆ 100 ࡜ࡋࡓ┦ᑐ್㸧ࢆ᫂ࡽ࠿࡟ࡋࡓୖ࡛ࠊྛᣦᶆ௦᭰᱌ࠖࢆᅗ ࡟♧ࡍࠋࡇࡢ௦᭰᱌ࡣࠊᇙ❧ฎ⌮㸦Z㸧࡟㔜ࡳ௜ࡅࡋࡓ⤫ྜ໬ࢆヨࡳࠊ⎔ቃ㈇Ⲵࡢᑡ࡞࠸ฎ⌮ᢏࢆᚲせ࡜ࡏࡎࠊ࠿ࡘ㍺㏦࢚ࣜ࢔ࡀࠕᮾிࠖཬࡧࠕ㛵ᮾࠖ⾡ࡢ㡰࡟㧗⅔࣭ࢥ࣮ࢡࢫ㸦K㸧ࠊࢭ࣓ࣥࢺ㸦C㸧ࠊRPF㸦R㸧ࠊࡢࡳ࡟㝈ᐃࡉࢀ࡚࠸ࡿⅬ࠿ࡽࠊᮾிࢆ୰ᚰ࡜ࡋࡓ㤳㒔ᅪ࣐ࢸࣜ࢔ࣝ㸦M㸧ࠊࢧ࣮࣐ࣝ㸦T㸧ࠊᇙ❧ฎ⌮㸦Z㸧࡜ᐃෆ࡛ࡢฎ⌮ࡣ༑ศ࡟ᐇ⌧ྍ⬟࡛࠶ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋ

ࡵ࡚࠸ࡿࠋࡇࢀࡽࢆ㋃ࡲ࠼ࠊᮏሗ࿌࡛ࡣ⾲ ࡟♧ࡍࠕ㡰㑅ᢥࡉࢀࡿฎ⌮ᢏ⾡࡟╔┠ࡍࡿ࡜ࠊᮾி࡛ࡣ࣐ࢸࣜ࢔ࣝᗎᑻᗘ⾜ิ Pࠖࢆ⪃᱌ࡋࡓࠋࡇࡢ㡰ᗎᑻᗘ࡟ࡣࠊ㍺㏦㐣㸦M㸧ཬࡧࢧ࣮࣐ࣝ㸦T㸧ࡢチᐜ㔞ࢆ඲࡚‶ࡓࡍィ⏬ෆ⛬࡜ฎ⌮㐣⛬࡟࠾ࡅࡿ⎔ቃ㈇Ⲵࡢపῶࢆ⪃៖ࡋࠊ9 ࢚ࣜᐜ࡛࠶ࡿࡀࠊ㛵ᮾ࡟࠾࠸࡚ࡣ 5 ✀㢮ࡢฎ⌮ᢏ⾡ࡢෆࠊࢭ࢔࡜ 6 ฎ⌮ᢏ⾡ࡢ⤌ྜࡏ㸦54 ㏻ࡾ㸧࡟ᑐࡋࠊฎ⌮㐣⛬࣓ࣥࢺ㸦C㸧ཬࡧ㧗⅔࣭ࢥ࣮ࢡࢫ㸦K㸧࡟ࡣ㍺㏦ࡉࢀ࡞

࡟࠾ࡅࡿ⎔ቃ㈇Ⲵࡀ᭱ࡶᑡ࡞ࡃࠊ࠿ࡘ㍺㏦㊥㞳ࡀ᭱ࡶ▷࠸⤖ᯝ࡜࡞ࡗ࡚࠸ࡿࠋᥦ᱌ࡋࡓ㍺㏦ィ⏬ࣔࢹࣝࡢᡓ␎ᛶ 㼇୓㼠㼛㼚㼉㻞㻡チᐜ㔞䠴㻝㻞㻜䠴㻞䠴㻟㻝㻡㻝㻜㻡㻜㻯㻾 㼀໭ᾏ㐨㻹㼀ᮾ໭㻯 㻷 㻹 㻾 㼀㻹㛵ᮾᮾி㼀୰㒊㻹㻾㏆␥ᅄᅜ㻯㻯୰ᅜ㻾஑ᕞᅗ ㍺㏦ࢺࣥ㊥㞳ࢆ᭱ᑠ࡟ࡍࡿ௦᭰᱌㼇୓㼠㼛㼚㼉㻞㻡チᐜ㔞㻞㻜䠴㻝䠴㻞㻝㻡䠴㻟㻝㻜㻡㻜㻯㻾 㼀໭ᾏ㐨㻾 㼀ᮾ໭㻯 㻷 㻹 㻾 㼀㻹㛵ᮾᮾி㼀୰㒊㻹㻾㏆␥ᅄᅜ㻯㻯୰ᅜ㻾஑ᕞᅗ ⎔ቃ㈇Ⲵࡢపῶࢆඃඛࡉࡏࡓ௦᭰᱌ࡢୗ࡛ࡣࠊࡲࡎཷධࢀᇶ‽ࡢ᮰⦡ࢆཷࡅࡎ࡟῭ࡴࢧ࣮࣐ᑐ↷ⓗ࡟ࠊࡼࡾᗈᇦⓗ࡞ィ⏬ෆᐜ࡟ኚ໬ࡋ࡚࠸ࡿࡇ࡜ࡀࣝ㸦T㸧࡟チᐜ㔞ࡀ࠶ࢀࡤඃඛⓗ࡟㍺㏦ࡋࠊḟ࠸࡛〇㐀ࢃ࠿ࡿࠋฎ⌮ᢏ⾡ࡢ୰࡛᭱ࡶ⎔ቃ㈇Ⲵࡀ኱ࡁ࠸ࢧ࣮࣐ࣝ

ᴗ⣔㸦X1㸧ࡢཷධࢀẚ⋡ࡀᑠࡉ࠸㡰࡟ RPFࠊ࣐ࢸࣜ࢔㸦T㸧ࡣࠊ㍺㏦ࢺࣥ㊥㞳ࢆ᭱ᑠ໬࡟ࡍࡿ௦᭰᱌࡜ẚ㍑ࡋ

ࣝࠊࢭ࣓ࣥࢺࠊ㧗⅔࣭ࢥ࣮ࢡࢫ࡬࡜ศ㓄ࡍࡿࡼ࠺࡟ᶵ⬟࡚኱ᖜ࡟ῶᑡࡋ࡚࠸ࡿࠋ≉➹ࡍ࡭ࡁࡣࠊ㛵ᮾ࡟࠾ࡅࡿ Tࡍࡿࠋ㛵ᮾ࡟࠾ࡅࡿฎ⌮ᢏ⾡ࡢ㑅ᢥഴྥࡣࠊᮏࣔࢹࣝࡢࡢෆヂࢆぢࡿ࡜ࠊ࢜ࣇ࢕ࢫ࣭ᑠ኎ᴗ⣔㸦X2㸧ཬࡧᘓタᡓ␎ᛶࢆ཯ᫎࡋࡓ᱁ዲ࡟࡞ࡗ࡚࠾ࡾࠊ⏘ᗫࣉࣛࡢከࡃࡀᴗ⣔㸦X3㸧ࢆཷධࢀࠊ᭱ࡶⰋ㉁࡞⏘ᗫࣉ࡛ࣛ࠶ࡿ〇㐀ࢧ࣮࣐ࣝ㸦T㸧࡟ࡼࡗ࡚ฎ⌮ࡉࢀࡿ௦᭰᱌࡜≉ᚩ௜ࡅࡽᴗ⣔㸦X1㸧ࡣྵࡲࢀ࡚࠸࡞࠸Ⅼ࡛࠶ࡿࠋࡇࢀࡣࠊ๓㏙ࢀࡿࠋ

ࡋࡓᮏࣔࢹࣝࡢᡓ␎ᛶ࡟ࠕ⎔ቃ㈇Ⲵࡢపῶ໬ࠖࡀ┠ⓗ࡟㍺㏦㊥㞳ࢆ㡰ᗎᑻᗘ⾜ิ㸦๓ᥖ⾲㸧ࡢせ⣲ p i j ࡟ኚຍࢃࡗࡓࡇ࡜࡟ࡼࡾࠊ⎔ቃ㈇Ⲵࡢᑠࡉ࠸ฎ⌮ᢏ⾡࡟ᑐࡋ᥮ࡋࠊ⎔ቃ㈇Ⲵࡢపῶ໬ࢆ┠ⓗ࡟ࡋࡓሙྜࡢィ⟬ࢆ⾜ࡗ࡚ X1 ࡢศ㓄ࡀ⋡ඛࡋ࡚࡞ࡉࢀࡓ⤖ᯝࠊX2 ࡜ X3 ࡢࡳࡀࡓ⤖ᯝࠊᅗ ࡟♧ࡍ➨஧ࡢ௦᭰᱌ࡀᚓࡽࢀࡓࠋࡇࡢᅗవ๫࡜࡞ࡾࠊࡇࢀࡽࢆཷධࢀᇶ‽ࡢ࡞࠸ T ࡟࠾࠸࡚ฎࡀ♧ࡍ࡜࠾ࡾࠊ㍺㏦ඛࡢ࢚ࣜ࢔ࡀ໭ᾏ㐨࠿ࡽ஑ᕞࡢ඲ᅜ⌮ࡍࡿࡇ࡜ࡀᚲせ࡟࡞ࡗࡓ࡜ゎ㔘ࡉࢀࡿࠋࡓࡔࡋࠊࡇࡢ࡟ᣑ኱ࡋ࡚࠾ࡾࠊ㍺㏦ࢺࣥ㊥㞳ࢆ᭱ᑠ໬࡟ࡍࡿሙྜ࡜ࡣ➨஧ࡢ௦᭰᱌࡟࠾࠸࡚ࡶࠊ⎔ቃ㈇Ⲵࡢ኱ࡁ࡞ࢧ࣮࣐ࣝ 㼇୓㼠㼛㼚㼉㻞㻡チᐜ㔞䠴㻝㻞㻜䠴㻞㻝㻡䠴㻟㻝㻜㻡㻜㻯㻾 㼀໭ᾏ㐨㻾 㼀ᮾ໭㻯 㻷 㻹 㻾 㼀㻹㛵ᮾᮾி㼀㻹୰㒊㻯㏆␥㻾ᅄᅜ㻯㻯୰ᅜ㻾஑ᕞᅗ ࢭ࣓ࣥࢺࡢཷධࢀᣑ኱ࢆ᝿ᐃࡋࡓ௦᭰᱌㸦໭ᾏ㐨㛵ᮾ୰ᅜཬࡧ஑ᕞࡢ & ࡢチᐜ㔞ࢆ୍ᚊ  ୓ࢺࣥቑ㸧
㸦T㸧࡟኱ࡁࡃ౫Ꮡࡋࡓィ⏬ෆᐜ࡜࡞ࡗ࡚࠸ࡿࠋ

⾲ ฎ⌮࣭㍺㏦㐣⛬࡟࠾ࡅࡿ &2 ᤼ฟ㔞ࡢẚ㍑

ࡑࡇ࡛ࠊ➨୕ࡢ௦᭰᱌࡜ࡋ࡚ࠊ⏘ᗫࣉࣛࡢཷධࢀᣑฎ⌮㐣⛬㍺㏦㐣⛬኱ࡀᮇᚅࡉࢀࡿࢭ࣓ࣥࢺ㸦C㸧࡟╔┠ࡋࠊࢭ࣓ࣥࢺᴗ⏺

௦᭰᱌㻌㻝㻥㻞㻚㻠㻜㻚㻡㻢࡛ࡢ⏘ᗫࣉࣛ౑⏝㔞ࡀቑ኱ࡋࡓሙྜࡢ㍺㏦ィ⏬᱌ࢆస௦᭰᱌㻌㻞㻤㻜㻚㻜㻝㻚㻜㻤௦᭰᱌㻌㻟㻣㻡㻚㻠㻞㻚㻣㻠௦᭰᱌㻌㻠

㻣㻡㻚㻠

㻜㻚㻢㻝

ᡂࡍࡿࡇ࡜࡟ࡍࡿࠋ௒ᅇࡣࠊࢭ࣓ࣥࢺ㸦C㸧ࡢཷධࢀᐇ⦼ࡀ᪤࡟࠶ࡿ໭ᾏ㐨ࠊ㛵ᮾࠊ୰ᅜཬࡧ஑ᕞࡢ 4 ࢚ࣜ࢔ࡢチᐜ㔞ࢆ୍ᚊ 5 ୓ࢺࣥࡎࡘቑຍࡉࡏࡓሙྜࡢィ⟬ࢆ⾜ࡗࡓࠋᅗ ࡟♧ࡍ⤖ᯝ࠿ࡽࠊཷධࢀチᐜ㔞ࢆቑຍࡉࡏࡓ㛵ᮾࠊ୰ᅜཬࡧ஑ᕞ࡬ࡢ㍺㏦㔞࡟ኚ໬ࡀ⏕ࡌࡿ୍᪉ࠊ໭ᾏ㐨ࡣ᭱ࡶ㐲᪉ࡢࡓࡵࠊチᐜ㔞ࢆቑຍࡉࡏࡓ࡟ࡶ㛵ࢃࡽࡎ௚࡜ྠᵝࡢຠᯝࡣぢࡽࢀ࡞࠿ࡗࡓࠋࡲࡓࠊᮾிཬࡧ㛵ᮾ࡟ศ㓄ࡉࢀ࡚࠸ࡓ࣐ࢸࣜ࢔ࣝ㸦M㸧ཬࡧ RPF㸦R㸧ࡀࢮࣟ࡟࡞ࡗ࡚࠸ࡿⅬ࠿ࡽࠊࡼࡾ⎔ቃ㈇Ⲵࡢᑠࡉ࠸ฎ⌮ᢏ⾡㸦ࡇࡇ࡛ࡣࢭ࣓ࣥࢺ C ࡟┦ᙜࡍࡿ㸧࡬ࡢ㓄ศࡀ㧗ࡲࡗࡓ࡜ゝ࠼ࡿࡀࠊࡑࡢ཯㠃ࠊࢭ࣓ࣥࢺ㸦C㸧࡬ࡢඃඛᗘࢆ㧗ࡵࡓᙳ㡪ࡀࠊ࢜ࣇ࢕ࢫ࣭ᑠ኎ᴗ⣔㸦X2㸧ཬࡧᘓタᴗ⣔㸦X3㸧ࡢవ๫ࢆᣍࡁࠊ㛵ᮾࡢࢧ࣮࣐ࣝ㸦T㸧ࡢཷධࢀ㔞ࢆഹ࠿࡞ࡀࡽቑຍࡉࡏࡿ᱁ዲ࡟࡞ࡗࡓࠋ
(2) ฎ⌮࣭㍺㏦㐣⛬࡟࠾ࡅࡿ CO2 ᤼ฟ㔞ࡢ⟬ᐃ⤖ᯝ௦᭰᱌࡜ࡋ࡚(1)࡛♧ࡋࡓࡑࢀࡒࢀ࡟ࡘ࠸࡚ࠊฎ⌮࣭㍺㏦㐣⛬࡟࠾ࡅࡿ CO2 ᤼ฟ㔞ࢆ⟬ᐃࡋࡓ⤖ᯝࢆ⾲ ࡟♧ࡍࠋࡇࡇ࡛ࠕ௦᭰᱌ 4ࠖࡣࠊ㈌≀⮬ື㌴࡟ࡼࡿ㛗㊥㞳
㍺㏦ࢆࠕ࣮ࣔࢲࣝࢩࣇࢺࠖࠊࡍ࡞ࢃࡕ኱㔞㍺㏦ࡀྍ⬟࡛ࠊ࠿ࡘ⎔ቃ㈇Ⲵࡢᑠࡉ࠸㕲㐨ࡸ⯪⯧࡬ษࡾ᭰࠼ࡓሙྜࡢ

                ༢఩㸸୓ࢺࣥὀ㸧⾲୰ࡢ௦᭰᱌ 1 ࡜ࡣࠕ㍺㏦ࢺࣥ㊥㞳ࢆ᭱ᑠ࡟ࡍ
ࡿ௦᭰᱌ࠖࠊ௦᭰᱌ 2 ࡜ࡣࠕ⎔ቃ㈇Ⲵࡢపῶࢆඃඛ
ࡉࡏࡓ௦᭰᱌ࠖࠊ௦᭰᱌ 3 ࡜ࡣࠕࢭ࣓ࣥࢺࡢཷධࢀ
ᣑ኱ࢆ᝿ᐃࡋࡓ௦᭰᱌ࠖࠊ௦᭰᱌ 4 ࡜ࡣࠕ௦᭰᱌ 3ࢆ࣮ࣔࢲࣝࢩࣇࢺ໬ࡋࡓ௦᭰᱌ࠖࢆព࿡ࡍࡿࠋ
ຠᯝࢆ᳨ウࡍࡿࡓࡵࡢཧ⪃᱌࡜ࡍࡿࠋලయⓗ࡟ࡣࠊ᪤࡟ᥦ♧ࡋࡓ 3 ࡘࡢ௦᭰᱌ࡢ୰࡛᭱ࡶ㍺㏦㐣⛬ࡢ㈇ᢸࡀ኱
ࡁ࠸ࠕ௦᭰᱌ 3ࠖ࡟ᑐࡋࠊᮾி࠿ࡽࡢ㍺㏦㊥㞳ࡀ 500 km௨ୖ࡛࠶ࡿᅄᅜ㸦700 km㸧ࠊ୰ᅜ㸦800 km㸧ࠊ஑ᕞ㸦1100km㸧ཬࡧ໭ᾏ㐨㸦1200 km㸧ࡢྛ࢚ࣜ࢔࡬ࡢ㍺㏦ᡭẁࢆࠕ㕲㐨ࠖ࡟࣮ࣔࢲࣝࢩࣇࢺࡋࡓ≧ἣࢆ௬ᐃࡋࠊ๓㏙ࡋࡓ
㍺㏦㐣⛬࡟࠾ࡅࡿ CO2 ᤼ฟཎ༢఩㸦21[g-CO2/ton㺃km]㸧
࡟ࡼࡾホ౯ࡋࡓ㸦⏘ᗫࣉࣛࡢ㓄ศࡣ௦᭰᱌ 3 ࡜➼ࡋ࠸ࡓ
ࡵࠊ㍺㏦㐣⛬ࡢ CO2 ᤼ฟ㔞ࡢࡳィ⟬ࡋࡓ㸧ࠋ௦᭰᱌ 1㸦㍺㏦ࢺࣥ㊥㞳ࢆ᭱ᑠ࡟ࡍࡿ௦᭰᱌㸧࡟ẚ࡭ࠊ௦᭰᱌ 2㸦⎔
ቃ㈇Ⲵࡢపῶࢆඃඛࡉࡏࡓ௦᭰᱌㸧࡛ࡣࠊฎ⌮㐣⛬ࡢ
CO2 ᤼ฟ㔞ࡀ 92.4 ୓ࢺࣥ࠿ࡽ 80.0 ୓ࢺࣥ࡬ 13.4㸣๐ῶࡍࡿࠋ୍᪉ࠊ㍺㏦㐣⛬ࡢ CO2 ᤼ฟ㔞ࡣ㐲᪉࡬ࡢᗈᇦ㍺ 
㏦ࢆక࠺ࡓࡵ࡟ 0.56 ୓ࢺࣥ࠿ࡽ 1.08 ୓ࢺࣥ࡟ቑຍࡋ࡚

᤼ฟࣉࣛࢫࢳࢵࢡᗫᲠ≀ࡢࣜࢧ࢖ࢡࣝಁ㐍࡟ࡘ࠸࡚ࠊᖹ

࠸ࡿࠋ௦᭰᱌ 3㸦ࢭ࣓ࣥࢺࡢཷධࢀᣑ኱ࢆ᝿ᐃࡋࡓ௦᭰

ᡂ 18 ᖺ 2 ᭶(2006)᱌㸧ࢆぢࡿ࡜ࠊฎ⌮㐣⛬ࡢ๐ῶࡀ୍ẁ࡜ಁ㐍ࡉࢀ࡚ 75.4
୓ࢺࣥ࡜࡞ࡾࠊ௦᭰᱌ 1 ࢆᇶ‽࡟ 18.3㸣ࡢ๐ῶࡀ㐩ᡂࡉࢀ࡚࠸ࡿࠋࡓࡔࡋࠊ㍺㏦㐣⛬࡟ࡘ࠸࡚ࡣ㤳㒔ᅪ௨እ࡬ࡢ
㍺㏦ศࡀቑຍࡋࠊ௦᭰᱌ 1 ࡢ 5 ಸᙅ࡟ CO2 ᤼ฟ㔞ࡀ⭾ࡽࡴࠋࡇࡢ௦᭰᱌ 3 ࡟ぢࡽࢀࡿ㍺㏦㐣⛬ࡢ㈇ᢸቑ࡟ࡘ࠸
࡚ࡣࠊ௦᭰᱌ 4 ࡀ♧ࡍ࡜࠾ࡾࠊᮾி࣭㛵ᮾ࢚ࣜ࢔࡟㝈ᐃ
ࡋࡓ㍺㏦ィ⏬㸦௦᭰᱌ 1㸧࡜ྠ⛬ᗘࡢ㍺㏦㈇ᢸ࡛࠶ࡾ࡞
ࡀࡽࠊฎ⌮㐣⛬࡛ࡣ኱ᖜ࡞ CO2 ᤼ฟ㔞ࡢ๐ῶࡀ☜ㄆ࡛ࡁࡿⅬ࠿ࡽࠊ࣮ࣔࢲࣝࢩࣇࢺࢆᑟධࡋࡓᗈᇦᚠ⎔ࢩࢫࢸ࣒ࡣ᭷ຠⓗ࡜ุ᩿ࡉࢀࡿࠋ㸲 ࠾ࢃࡾ࡟ᮏ◊✲࡛ᚓࡽࢀࡓ⤖ᯝࢆ⥲ᣓࡍࡿ࡜ࠊ༢࡟㍺㏦ࢺࣥ㊥㞳ࡢࡳࢆ᭱ᑠ໬ࡍࡿ௦᭰᱌ 1 ࡟ẚ࡭ࠊ⎔ቃ㈇Ⲵࡢపῶࢆ
┠ⓗ࡟ࡋࡓィ⏬㸦௦᭰᱌ 2㹼4㸧ࡣࠊࡼࡾ⎔ቃ㈇Ⲵࡢప
࠸ฎ⌮ᢏ⾡ࢆ฼⏝ࡍࡿࡓࡵࡢᗈᇦ㍺㏦ࡀక࠺ࡀࠊࡑࡢศ
ࡢ㈇Ⲵࡣ CO2 ᤼ฟ㔞඲య࡟༨ࡵࡿ๭ྜ࡛ぢࡿ࡜ᴟࡵ࡚ᑠࡉࡃࠊฎ⌮࣭㍺㏦㐣⛬ࡢࢺ࣮ࢱ࡛ࣝ 13㸣㹼18㸣ࡢ CO2᤼ฟ๐ῶࡀぢ㎸ࡲࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋᮏ◊✲ࡣ
CO2 ᤼ฟ㔞ࢆホ౯ᣦᶆ࡟ࡋࡓศᯒ࡛࠶ࡗࡓࡀࠊNOX ࡸࣁ࢖ࢻ࣮ࣟ࢝࣎ࣥ➼ࡢ᤼ฟࢹ࣮ࢱ➼ࢆ⏝࠸࡚ྠᵝࡢ᳨ウࢆ⾜࠸ࠊࡼࡾ⥲ྜⓗ࡞どⅬ࠿ࡽ⎔ቃ㈇Ⲵࡢ๐ῶ࡟ࡘ࠸᳨࡚ウࡋ࡚⾜ࡃࡇ࡜ࡶྍ⬟࡛࠶ࡿ࡜⪃࠼࡚࠸ࡿࠋཧ⪃ᩥ⊩
1㸧Ⲩ஭ᗣ⿱ࡽ㸸⥺ᙧィ⏬ἲࢆ㐺⏝ࡋࡓ⏘ᗫࣉࣛࢫࢳࢵࢡࡢ᭱㐺㍺㏦ィ⏬ࠊᮾி㒔⎔ቃ⛉Ꮫ◊✲ᡤᖺሗ 2009ࠊ
pp.61-67(2009)2㸧Ⲩ஭ᗣ⿱㸪ἙᮧỌ㸪ᑠἨ᫂㸪ⱱᮌᩄ㸸⏘ᴗ⣔ࣉࣛࢫࢳࢵࢡᗫᲠ≀ࡢᗈᇦᚠ⎔ࢩࢫࢸ࣒࡟㛵ࡍࡿ㍺㏦ィ⏬ࣔࢹࣝࠊᅵᮌᏛ఍ㄽᩥ㞟㹅㸦⎔ቃ㸧㸪Vol.67㸪No.6㸦⎔ቃࢩࢫࢸ࣒◊✲ㄽᩥ㞟 ➨ 39 ᕳ㸧㸪pp.ϩ_449-ϩ_458㸪20113㸧୰ᶫ㡰୍ࡽ㸸ࣉࣛࢫࢳࢵࢡ〇ᐜჾໟ⿦ࡢฎ⌮࡟㛵ࡍࡿ࢚ࢥຠ⋡ศᯒࠊ➨ 18 ᅇᗫᲠ≀Ꮫ఍◊✲Ⓨ⾲఍ㅮ₇ㄽᩥ㞟ࠊpp.297-299(2007)
4㸧⎔ቃ┬
14 ᖺᗘ

ᐊຠᯝ࢞ࢫ᤼ฟ㔞⟬ᐃ᪉ἲ᳨ウ఍㸸ᖹᡂᐊຠᯝ࢞ࢫ᤼ฟ㔞⟬ᐃ᪉ἲ᳨ウ఍ ᗫᲠ≀ศ⛉఍ሗ࿌᭩ࠊpp.69-71(2002)
5㸧஦ᴗ⣔ࣉࣛࢫࢳࢵࢡ㈨※ࣜࢧ࢖ࢡࣝ◊✲఍㸸஦ᴗ⪅