Seafood Safety and Policy
水産食品の安全と施策
• Hiroyuki Matsuda- Yokohama National
University
• 松田裕之 横浜国立大学
– Ecological Society of Japan, President
– Jpn Soc Fisheries Sci, 政策委員長
– DIVERSITAS科学委員
– Pew Marine Conservation Fellow
– (社)水産資源･海域環境保全研究会会長
Nov. 12: Panel 1: Seafood safety:
How do we assess the safety of seafood?
1.
2.
3.
4.
5.
Dr. Mitsuyoshi Urashima 浦島充佳, 慈恵医大
Why risk perception is much higher than real risk?
なぜリスクは現実よりもずっと高いと認識されるか
Dr. Kazuo Sakai 酒井一夫, 放医研
From a viewpoint of radiation protection -- to reduce/control
exposure to the public—
放射線防護の視点から被曝の減衰・制御のために
Prof. Deborah Oughtonデボラ･アウトン, University of Oslo
Norway, Fish and Chernobyl
ノルウェー、魚、チェルノブイリ
Mr. Koji Hasebe 長谷部耕二, 讀賣新聞
The fears of people against radiation exposure
放射線被曝に対する人々の恐れ
Dr. Takami Morita 森田貴己, 水産庁
Comparison of regulatory limits for fishery products
水産物の基準値の国別比較
浦島充佳氏
Why risk perception is much higher than real risk?
• Radiation is invisible: Smoking is avoidable because
it can be seen.
• Radiation is not controllable: Food poisoning by
pathogenic E Coli was avoidable by heating meat.
• Children’s issue: Dividing cells may be more
sensitive to radiation induced toxicity, theoretically.
• Long lasting: Not 1 year’s problem, but will
continue decades.
• Uncertainty: We have only a few evidence
of low dose radio-contamination in history.
Concentrations in meal in Fukushima
Cs-137
Cs-134
K-40
<1 Bq/kg
(Coop Fukushima)
2 families detection(max; 3.2 Bq/kg) in 100 families.
http://www.fukushima.coop/kagezen/2012.html
酒井一夫氏一部加筆
Dose Received through Food
Annual Internal
Exposure (mSv)
(Maximum Value)
Actual intake
= 4Bq/day
Actual inner exposure level is 1/40
of 1mSv/yr.
Radioactive Cesium
Naturally Occurring
Radioactivity
Based on “Monitoring of Daily Food in Fukushima”
http://www.pref.fukushima.jp/j/nitijyousyoku0924.pdf
酒井一夫氏
Authorities
Standards
Producers
Monitoring
Information
Control/Advice
Market
Management
Information
Information
Consumers
Understanding
/Acceptance
Safety and “Peace of Mind” regarding Food
of Fukushima
7Deborah Oughton: ICRP Fukushima dialogues, November 2012
Chernobyl: Radioceasium deposition
in Norway, 1986
Oughton氏
Maximum values ‘86/’87
Cow milk: 650 Bq/kg
Goat milk: 1350 Bq/kg
Freshwater fish: 30 000 Bq/kg
Lamb: 40 000 Bq/kg
Reindeer: 150 000 Bq/kg
Photo: Lavrans Skuterud, NRPA
Mushrooms: 1-2 MBq/kg
In 1987 more than 90% of all
reindeer meat in Norway was
above 600 Bq/kg
Permitted levels 600 Bq/kg general
foodstuffs
Raised permitted levels to 6000
Bq/kg in reindeer (+mushrooms,
game, freshwater fish)
長谷部耕二氏
買い叩かれる原発付近の食品
• Spinach
Gunma 250円($3)
Kyoto 498円($5)
• Komatu-na
Chiba 198円($ 2.5)
Kyoto 498円($5)
森田貴己氏
Comparison of regulatory limits for fishery products
Cs-134 + Cs-137 (Bq/kg-wet)
Codex
1000 *
Japan
500 → 100
USA
1200
EU
1250
Thai
500
Singapore
500
South Korea
370
Hong Kong
1000
Chinese Taipei
370
Philippines
1000
Vietnam
1000
Malaysia
1000
China
800
* This index includes S-35, Co-60, Sr-89, Ru-103, Ce-144, Ir-192
500
400
300
Hokkaido
マダラ
森田貴己氏
500
Miyagi
400
300
200
200
100
100
0
0
500
Aomori
400
500
Fukushima
400
300
300
200
200
100
100
0
500
0
Iwate
400
3/1
7/1
11/1
3/1
7/1
11/1
300
― 500Bq/kg The provisional
regulation values
200
100
―100Bq/kg The regulatory limit
0
3/1
7/1
11/1
3/1
7/1
11/1
森田貴己氏より
マダラの経済規模と出荷規制
Prefecture
Production value
in 2010
(100million yen:
億円)
Restricted
distribution
Hokkaido
46.8 (Pacific side)
-
Aomori
8.6 (Pacific side)
2012.8.27~10.31
Iwate
10.4
2012.5.2~
(a part of areas)
Miyagi
21.2
2012.5.2~
Fukushima
2.9
After accident ~
Ibaragi
0.4
2012.11.9~
論点
• 実際の被曝リスクはバナナのK-40、魚の水銀と比べ
て十分低い（が0でない） Actual risk level is much
smaller than K-40 in banana and mercury in fish
• 政府と科学者が市民に信頼されていない Citizens
distrust government and scientists
• 消費者よりも流通が気にする Market rather than
consumers worries about contamination.
• 双方の「選択の自由」を尊重する Respect both sides
of freedom of choice
• 食べる利益も説明する（魚、被災地） Explain risk
and benefit of eating fish and supporting Fukushima.
A home delivery company大地を守る会 sells BOTH
less contaminated foods and foods from Fukushima
One reason why we conserve nature
is rebuilding linkage between
producers and consumers(鬼頭秀一)
http://yellow.ap.teacup.com/thinkmon/1194.html
http://pub.ne.jp/newjei/?entry_id=3823685
差別Discrimination to
radioactive contamination
• Discrimination in even the Kyoto traditional
religious events
• Pine woods with prayers’ message, almost no
contaminated, were rejected to be burn in Kyoto
religious event (August 16, 2011)
• Garage sales of agriculture/fisheries products of
Fukushima in Fukuoka was cancelled.
http://www.asahi.com/national/update/0925/TKY201109250289.html
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