An influential factor for external radiation dose estimation for residents after the Fukushima Daiichi Nuclear Power Plant accident-time spent outdoors for residents in Iitate Village

被引：7

作者：

Ishikawa, Tetsuo ^{[1
]}

Yasumura, Seiji ^{[1
]}

Ohtsuru, Akira ^{[1
]}

Sakai, Akira ^{[1
]}

Akahane, Keiichi ^{[2
]}

Yonai, Shunsuke ^{[2
]}

Sakata, Ritsu ^{[3
]}

Ozasa, Kotaro ^{[3
]}

Hayashi, Masayuki ^{[4
]}

Ohira, Tetsuya ^{[1
]}

Kamiya, Kenji ^{[1
,5
]}

Abe, Masafumi ^{[1
]}

机构：

[1] Fukushima Med Univ, Radiat Med Sci Ctr, Fukushima Hlth Management Survey, Hikarigaoka 1, Fukushima 9601295, Japan

[2] Natl Inst Radiol Sci, Inage Ku, 4-9-1 Anagawa, Chiba 2638555, Japan

[3] Radiat Effects Res Fdn, Minami Ku, 5-2 Hijiyama Pk, Hiroshima 7320815, Japan

[4] Fukushima Med Univ, Hikarigaoka 1, Fukushima 9601295, Japan

[5] Hiroshima Univ, Minami Ku, 1-2-3 Kasumi, Hiroshima 7348551, Japan

来源：

JOURNAL OF RADIOLOGICAL PROTECTION | 2016年 / 36卷 / 02期

关键词：

nuclear accident; external dose; time spent outdoors;

D O I：

10.1088/0952-4746/36/2/255

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Many studies have been conducted on radiation doses to residents after the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. Time spent outdoors is an influential factor for external dose estimation. Since little information was available on actual time spent outdoors for residents, different values of average time spent outdoors per day have been used in dose estimation studies on the FDNPP accident. The most conservative value of 24 h was sometimes used, while 2.4 h was adopted for indoor workers in the UNSCEAR 2013 report. Fukushima Medical University has been estimating individual external doses received by residents as a part of the Fukushima Health Management Survey by collecting information on the records of moves and activities (the Basic Survey) after the accident from each resident. In the present study, these records were analyzed to estimate an average time spent outdoors per day. As an example, in Iitate Village, its arithmetic mean was 2.08 h (95% CI: 1.64-2.51) for a total of 170 persons selected from respondents to the Basic Survey. This is a much smaller value than commonly assumed. When 2.08 h is used for the external dose estimation, the dose is about 25% (23-26% when using the above 95% CI) less compared with the dose estimated for the commonly used value of 8 h.

引用

页码：255 / 268

页数：14

共 16 条

[11] Measurements of Individual Radiation Doses in Residents Living Around the Fukushima Nuclear Power Plant [J].

Nagataki, Shigenobu ;

Takamura, Noboru ;

Kamiya, Kenji ;

Akashi, Makoto .

RADIATION RESEARCH, 2013, 180 (05) :439-447

[12] Comparison between Direct Measurements and Modeled Estimates of External Radiation Exposure among School Children 18 to 30 Months after the Fukushima Nuclear Accident in Japan [J].

Nomura, Shuhei ;

Tsubokura, Masaharu ;

Hayano, Ryugo ;

Furutani, Tomoyuki ;

Yoneoka, Daisuke ;

Kami, Masahiro ;

Kanazawa, Yukio ;

Oikawa, Tomoyoshi .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2015, 49 (02) :1009-1016

[13]

Nuclear Emergency Headquarters, 2011, REP JAP GOV IAEA MIN

[14]

The National Diet of Japan, 2012, FUK NUCL ACC IND INV

[15]

United Nations Scientific Committee on the Effects of Atomic Radiation, 2014, UNSCEAR 2013 REP ANN

[16] Study Protocol for the Fukushima Health Management Survey [J].

Yasumura, Seiji ;

Hosoya, Mitsuaki ;

Yamashita, Shunichi ;

Kamiya, Kenji ;

Abe, Masafumi ;

Akashi, Makoto ;

Kodama, Kazunori ;

Ozasa, Kotaro .

JOURNAL OF EPIDEMIOLOGY, 2012, 22 (05) :375-383

← 1 2 →