| 江阔,王永杰,洪敏,等.2019—2023年青岛市海产品中γ放射性核素水平及所致居民剂量[J].中华放射医学与防护杂志,2025,45(12):1205-1210.Jiang Kuo,Wang Yongjie,Hong Min,et al.Levels of gamma-emitting radionuclides in seafood and doses to residents in Qingdao from 2019 to 2023[J].Chin J Radiol Med Prot,2025,45(12):1205-1210 |
| 2019—2023年青岛市海产品中γ放射性核素水平及所致居民剂量 |
| Levels of gamma-emitting radionuclides in seafood and doses to residents in Qingdao from 2019 to 2023 |
| 投稿时间：2025-07-03 |
| DOI：10.3760/cma.j.cn112271-20250703-00220 |
| 中文关键词: 海产品 放射性核素 活度浓度 有效剂量 |
| 英文关键词:Seafood Radionuclides Activity concentration Effective dose |
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| 中文摘要: |
| 目的 调查青岛市海产品中γ放射性核素水平，评估当地居民因食入海产品所致的待积有效剂量，为及时发现安全隐患提供数据支撑。方法 于2019—2023年在青岛近海渔港码头，采集当地渔民在近海50 km范围内捕捞的海鱼、海藻、贝类、螃蟹和海虾共59份样品，测定样品中γ放射性核素的活度浓度，结合青岛市居民海产品食用量来估算放射性核素的摄入量及所致的待积有效剂量。结果 59份海产品中人工放射性核素134Cs、58Co、60Co、131I和110Agm的活度浓度均低于判断限，137Cs有检出活度平均值为(16.85±18.93)mBq/kg(鲜重)。天然核素210Pb、228 Ra、226Ra、238U、40K有检出，活度浓度平均值依次为(3.23±3.16)、(1.31±1.55)、(0.31±0.37)、(0.49±1.04)、(88.98±82.55)Bq/kg(鲜重)。青岛市居民食用海产品所致的待积有效剂量为157.52 μSv。结论 2019—2023年青岛市海产品中238U、228 Ra、226Ra、40K、210Pb、137Cs的活度浓度与国内其他地区水平相近，处于本底水平，对青岛市居民所致的剂量负担轻微。 |
| 英文摘要: |
| Objective To investigate the levels of gamma-emitting radionuclides in seafood in Qingdao, estimate the committed effective doses to local residents via ingestion pathway and provide data support for timely detection of potential safety hazards.Methods A total of 59 samples of marine fish, seaweed, shellfish, crab and sea shrimp caught by local fishermen within 50 km offshore were collected from Qingdao coastal fishing port from 2019 to 2023. The activity concentrations of gamma-emitting radionuclides in the samples were determined, and the intake of radionuclides and the resulting committed effective dose were estimated on the basis of the consumption of seafood by Qingdao residents.Results The activity concentrations of artificial radionuclides 134Cs, 58Co, 60Co, 131I and 110Agm in 59 seafood samples were all below the detection lower limit. The average activity concentration of 137Cs was (16.85 ± 18.93)mBq/kg (fresh weight). Natural radionuclides 210Pb, 228Ra, 226Ra, 238U and 40K were detected, with average activity concentrations of (3.23 ± 3.16), (1.31 ± 1.55), (0.31 ± 0.37), (0.49 ± 1.04) and (88.98 ± 82.55)Bq/kg (fresh weight), respectively. The committed effective dose to Qingdao residents from consuming seafood was 157.52 μSv.Conclusions The activity concentrations of 238U, 228 Ra, 226Ra, 40K, 210Pb and 137Cs in seafoods collected from Qingdao from 2019 to 2023 were similar to those in other regions of China within background levels, which result in a minor dose commitment to Qingdao residents. |
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