ASSESSMENT OF RADIOLOGICAL SAFETY OF SOME SACHET (PURE) WATER COLLECTED FROM HADEJIA TOWN IN JIGAWA STATE.

Sachet Water samples from Hadejia town in the north eastern part of Nigeria were studied in order to ascertain the suitability and radiological safety of water sold in the town for human consumption. Radioactive measurements, using a lead shielded sodium iodide detector coupled to a multichannel analyser were used to estimate eight radiological parameters of some sachets water samples from Hadejia. The results show that the values of all the parameters fall within the minimum universal standard, indicating that consuming the sachet water in the study area pose no serious radiological hazard, especially for adults. The values of the Absorbed Dose Rate (50.105 nGyh-1) and AEDE (12.458 mSvy-1) for the infant however portend that infant consumer could be susceptible to radiation hazard on consuming sachet water collected from the study area. It is however recommended that activities that are capable of enhancing the radiological content of should be avoided within the area.

本研究以尼日利亚东北部哈代贾镇的袋装水（Sachet Water）样本为研究对象，旨在评估当地售卖的供人类饮用的袋装水的适用性与放射安全性。采用铅屏蔽碘化钠探测器耦合多道分析器的放射测量方法，对采集自哈代贾镇的部分袋装水样本的8项放射学参数进行了估算。研究结果显示，所有参数的数值均处于国际通用标准限值范围内，表明该研究区域内的袋装水供人饮用时不会产生严重的放射危害，对成人群体尤为安全。然而，婴幼儿群体的吸收剂量率（Absorbed Dose Rate，50.105 nGy·h⁻¹）与有效剂量当量年值（AEDE，12.458 mSv·y⁻¹）的测算结果预示，饮用该区域袋装水可能会使婴幼儿消费者面临辐射危害风险。不过，本研究建议该区域内应避免任何可能提升水体放射含量的活动。