| 李佳璐,武云云,贺良国,等.四川省部分地区温室氡水平测量及其变化规律研究[J].中华放射医学与防护杂志,2026,46(8):769-775.Li Jialu,Wu Yunyun,He Liangguo,et al.A measurement study on radon concentration levels and their variations within greenhouses in some cities, Sichuan province, China[J].Chin J Radiol Med Prot,2026,46(8):769-775 |
| 四川省部分地区温室氡水平测量及其变化规律研究 |
| A measurement study on radon concentration levels and their variations within greenhouses in some cities, Sichuan province, China |
| 投稿时间：2026-03-26 |
| DOI：10.3760/cma.j.cn112271-20260326-00117 |
| 中文关键词: 温室|氡|季节变化 |
| 英文关键词:Greenhouse|Radon|Seasonal variation |
| 基金项目: |
| 作者 | 单位 | E-mail | | 李佳璐 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | | | 武云云 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | wuyunyun@nirp.chinacdc.cn | | 贺良国 | 四川省疾病预防控制中心, 成都 610041 | | | 宋延超 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | | | 孙浩然 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | | | 苏垠平 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | | | 丁博威 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | | | 侯长松 | 中国疾病预防控制中心辐射防护与核安全医学所 中国疾病预防控制中心辐射防护与核应急重点实验室, 北京, 100088 | |
|
| 摘要点击次数: 1751 |
| 全文下载次数: 18 |
| 中文摘要: |
| 目的 了解四川省部分温室环境中氡浓度水平及其季节变化。方法 于2025年1月至3月在四川省6个城市(眉山市、广元市、雅安市、德阳市、泸州市和达州市)选取18座不同类型温室(塑料大棚、玻璃温室、连栋温室)采用CR-39固体核径迹探测器开展氡浓度测量,并同期设置非温室环境对照,其中,7座温室开展四季连续测量。选取眉山市的3座塑料大棚采用RAD7测氡仪测量24 h氡浓度。土壤中226Ra活度浓度测量采用γ能谱法,所有数据采用R软件进行统计分析。结果 四川省部分温室冬季氡浓度范围为26~548 Bq/m3,中位数为63 Bq/m3。不同类型温室的氡浓度为塑料大棚＞玻璃温室＞连栋温室。冬季温室内的氡浓度高于非温室对照环境,差异具有统计学意义(H = 5.06,P < 0.05)。四川省部分地区不通风的温室冬季氡浓度高于自然通风与机械通风的温室,差异具有统计学意义(H = 11.42,P < 0.05)。不同城市之间温室内氡浓度差异具有统计学意义(H = 13.05,P < 0.05),氡浓度从高到低依次为:眉山市 ＞ 广元市 ＞ 雅安市 ＞ 泸州市 ＞ 德阳市 ＞ 达州市。不同季节之间温室的氡浓度差异具有统计学意义(H = 56.50,P < 0.05),温室内氡浓度呈现冬季＞秋季＞夏季＞春季的变化趋势。土壤中226Ra活度浓度范围为21~67 Bq/kg。塑料大棚内氡浓度的日变化特征为凌晨1∶00后逐渐升高,早晨8∶00左右达到峰值,9∶00之后逐步下降,下午17∶00达到最低值。结论 四川省温室内氡浓度与通风、温室类型、季节变化等因素有关。加强通风可有效降低温室内氡浓度,从而减少作业人员的氡暴露风险。 |
| 英文摘要: |
| Objective To determine the radon concentration levels and their seasonal variations in partial greenhouses across Sichuan province, China. Methods From January to March 2025, radon concentrations in 18 representative greenhouses covering plastic, glass, and multi-span greenhouses across six cities (Meishan, Guangyuan, Ya'an, Deyang, Luzhou, and Dazhou) in Sichuan province were measured using CR-39 solid-state nuclear track detectors, with contemporaneous non-greenhouse environments as controls. Among the 18 greenhouses, seven were selected for continuous radon concentration monitoring across four seasons. Meanwhile, three plastic greenhouses in Meishan were selected for 24-hour radon concentration measurements using RAD7 radon detectors. Soil 226Ra activity concentrations were determined using gamma-ray spectrometry. All measurements were subjected to statistical analysis using the R software. Results Partial greenhouses across Sichuan exhibited winter radon concentrations ranging from 26 to 548 Bq/m3, with a median of 63 Bq/m3(IQR: 44-92 Bq/m3). Radon concentrations differed among the three greenhouse types, decreasing in the order of plastic greenhouses, glass greenhouses, and multi-span greenhouses. The greenhouses exhibited higher winter radon concentrations than non-greenhouse control environments, with statistically significant differences (H = 5.06, P < 0.05). In Sichuan province, unventilated greenhouses exhibited higher winter radon concentrations than naturally or mechanically ventilated greenhouses, with statistically significant differences (H = 11.42, P < 0.05). The radon concentrations across the six cities also exhibited statistically significant differences (H = 13.05, P < 0.05), with decreasing in the order of Meishan, Guangyuan, Ya'an, Luzhou, Deyang, and Dazhou. Similarly, the radon concentrations across four seasons also showed statistically significant differences (H = 56.50, P < 0.05), decreasing in the order of winter, autumn, summer, and spring. The 226Ra activity concentrations in soil were estimated at 21-67 Bq/kg. Regarding diurnal variations, the radon concentrations in plastic greenhouses gradually increased after 1:00, peaked at around 8:00, gradually declined after 9:00, and reached the minimum at around 17:00. Conclusions Radon concentrations in greenhouses across Sichuan Province are associated with ventilation, greenhouse type, and season. Improving ventilation can effectively reduce indoor radon concentrations, thereby reducing the risk of exposure to radon posed to greenhouse workers. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|