방사성물질 측정망 현황 및 하천·호소 내 인공방사성물질(134Cs, 137Cs, 131I) 조사
Status of a national monitoring program for environmental radioactivity and investigation of artificial radionuclide concentrations (134Cs, 137Cs and 131I) in rivers and lakes
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본 연구에서는「공공수역 방사성물질 측정망 운영 계획」에 따른 모니터링 수행 내용을 소개하였고, 하천 및 호소 60개 지점을 대상으로 인공방사성물질(134Cs, 137Cs, 131I)의 농도를 조사하여 우리나라 지표수 내 방사성물질의 실태를 파악하고자 하였다. 채취된 시료는 마리넬리 비커를 이용한 감마분광분석기법으로 분석하였다. 134Cs와 137Cs은 모든 지점에서 MDA 미만으로 조사되었고, 131I는 한 지점(0.533±0.058 Bq/L)을 제외한 모든 지점의 농도가 MDA 미만으로 나타났다. 131I는 의료용으로 사용하는 물질로 환자의 배설물로 인해 하수처리장 인근 하천수에서 빈번하게 검출되는 물질로 알려져 있다. 따라서131I가 검출된 원인을 파악하기 위해 하수처리장 방류지점을 포함한 131I가 검출된 상류수계 6개 지점을 추가 조사하였다. 조사결과, 하수처리장 처리수 방류지점에서부터 하류방향으로 131I가 지속적으로 검출되었으며, 농도는 0.257±0.034~0.799±0.051 Bq/L 범위로 조사되었다. 추가조사를 통해 하수처리장 방류수가하천수의 131I 검출에 영향을 미치는 것으로 나타났다.
Abstract
A survey of the artificial radionuclides in rivers and lakes was conducted to investigate their levels in surface water. Water samples were collected at 60 points and analyzed by gamma-ray spectrometry with a measurement time of 10,000 seconds for 134Cs, 137Cs, and 131I. The obained values were lower than MDA for all points, except one point for 131I that was 0.533±0.058 Bq/L. 131I is known as a radioactive material that occurs frequently in sewage treatment plants. Because it is often used for medical treatments and subject to spreading into the environment due to the excretion from the patients. For the point where 131I was detected, we conducted additional investigation on the upstream river point and the effluent points of nearby sewage treatment plant to find the source of 131I. 131I was not detected at the upstream points of one of the upstream sewage treatment plants but found at the downstream points with the level being 0.257±0.034 to 0.799± 0.051 Bq/L, proving the sewage treatment plant was the 131Isource.
참고문헌 (38)
- "NOAA" (2011)[URL]
- Rating on the Events in Fukushima Dai-ichi Nuclear Power Station by the Tohoku District-off the Pacific Ocean Earthquake, "INES", METI, ~ (2011)
- N. Kinoshita, , P. Natl. Acad. Sci. USA, 108(49), pp.19526~19529 (2011)
- Materials were reported to the Nuclear Safety and Security Commission, "NRA", ~, pp.No. 77 (2011)
- P. Thakur, , Sci. Environ, 458-460, pp.577~613 (2013)
- Environmental Radioactivity Survey Data in Korea, "KINS", KINS, ~, pp.KINS (2011), ER-028, 88-90
- V. Valkovic, "Radioactivity in the Environment", pp.468~474 (2000), Elsever
- Health Risk Assessment from the Nuclear Accident after the 2011 Great East Japan Earthquake and Tsunami, based on a Preliminary Dose Estimation, "WHO", 17~24 (2013)
- General Standard for Contaminants and Toxins in Food and Feed, "CODEX", CODEX, 2~53, pp.CODEX STAN 193- 1995 (1995)
- "Ministry of Food and Drug Safety" (2011)[URL]
- "Ministry of Food and Drug Safety Notification No. 2012-128", Standards and Specifications for Foods, ~ (2012)
- "USEPA" (2015)[URL]
- "NRA" (2000)[URL]
- Ministry of Environment, "Study Group Report on the Constant Monitoring of Radioactive Substances", ~ (2013)
- Report on the Radiological State of the Environment in France in 2010-2011, "IRSN", 6~29 (2014)
- "Nuclear Safety and Security Commission Act No. 13078", Republic of Korea, ~ (2015)
- KRISS, "An Establishment of Standard Operating Procedure for Radioactive Materials in Public Waters", 5~40 (2014)
- "Ministry of Environment Act No.10272", Republic of Korea, ~ (2010)
- "Ministry of Environment Notification No. 2014-160", Republic of Korea, ~ (2014)
- L. A. Currie, , Am. Chem. Soc. Publ, 40(3), pp.586~593 (1968)
- G. R. Gilmore, "Practical Gamma-ray Spectrometry", pp.114~129 (2008), Wiley
- 장은성, "HPGe 검출기에서 환경방사능측정의 검출하한치에 관한 연구", 한국방사선학회논문지, 5(1), pp.5~10 (2011), 한국방사선학회
- M. H. Lee, , J. Radiat. Prot, 24(3), pp.171~184 (1999)
- Toxicological Profile for Cesium, "ATSDR", 2~4, pp.PB2004- 104397 (2004)
- T. Kanjimoto, , Kyoto Univ. Res. React. Inst, 2(8), pp.1~5 (2012)
- Radioactivity of municipal sludge, "EPA", 1~25, pp.823R86101 (1986)
- Radiation Exposure from Iodine 131, "ATSDR", SS3117, 5~7 (2008)
- B. U. Chang, , Radiat. Prot. Dosim, 146(1-3), pp.318~321 (2011)
- Y. Oura, , Geochem J, 46, pp.303~309 (2012)
- S. Nagao, , Prog. Nucl. Sci. Technol, 4, pp.9~13 (2014)
- P. S. Rose, , Sci. Total Environ, 452-453, pp.87~97 (2013)
- F. Jimnez, , Spain, Water Air Soil Poll, 217, pp.515~521 (2011)
- F. Jimnez, , Radiat. Meas, 46, pp.104~108 (2011)
- H. W. Fischer, , J. Environ. Radioactiv, 100, pp.1079~1085 (2009)
- T. Yasutaka, , Kyoto Univ. Res. React. Inst, 2(17), pp.1~4 (2012)
- M. Malta, , J. Integr. Coast. Zone Manage, 13(4), pp.399~408 (2013)
- O. Connan, , J. Environ. Radioactiv, 99, pp.1102~1110 (2008)
- J. A. Sanchez-Cabeza, , Water Air Soil Poll, 118, pp.339~356 (2000)