评估喀布尔市医疗诊断中心的环境 X 射线污染及其对健康的影响

Rajab Ali Khavari, Shahzada Arab
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摘要

X 射线辐射是医疗设施中最常见的污染物之一,如果不采取安全预防措施,也不充分了解其风险,就会严重伤害病人和相应部门的工作人员。为了了解喀布尔放射中心的 X 射线辐射污染情况,我们使用 Poly-Master 探测器在放射中心的多个地点进行了测量,包括控制室、走廊、大门后面以及超过 12 个放射设施。然后对剂量数据进行分析。使用 SPSS 程序对背景、X 射线设备工人当量剂量、环境污染和表面污染进行评估。结果表明,照射后没有表面污染,背景剂量通常正常。在未考虑放射标准的地方,员工使用的 X 射线设备等效剂量略高于规定的阈值,但总体接近正常值。辐射工作人员的当量剂量估计值表明,从对健康的影响来看,其剂量一般不会超过规定的限值,不会对健康造成重大风险。从空间分布可以看出,放射服务量较大的场所辐射风险较高。不过,这些风险可以通过充分了解和掌握设备的运行方式来降低。
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Assessment of Ambient X-ray Pollution and its Health Effects in the Medical Diagnosis Centers in Kabul City
One of the most common pollutants in healthcare facilities is X-ray radiation, which can seriously injure patients as well as staff members in the corresponding department if safety precautions are not taken and the risks are not sufficiently understood. To look at X-ray radiation pollution in radiology centers in Kabul, measurements were taken with Poly-Master detectors in several radiology center locations, including the control room, hallways, behind the gates, and in more than 12 radiology facilities. The dose data was then analyzed. The SPSS program was used to assess background, X-ray devices worker equivalent doses, ambient pollution, and surface pollution. The results demonstrate that, there is no surface pollution following exposure and that the background dose is typically normal. The X-ray device used by employees' equivalent dose was found to be slightly greater than the specified threshold in places where radiology criteria was not taken into account, but overall it was near to normal. The equivalent dose estimate for radiation workers indicates that, in terms of health impacts, the dosage is typically not more than the established limit and does not pose a significant risk to health. As can be seen from the spatial distribution, radiation risks are higher at sites with a higher volume of radiology services. However, these risks can be mitigated by having adequate knowledge and information about how the device operates.
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