Department of Applied Chemistry, College of Applied Science, University of Fallujah, Fallujah, Iraq.
Department of Chemistry, College of Science, University of Anbar, Ramadi, Iraq.
Anal Sci. 2024 Oct;40(10):1919-1926. doi: 10.1007/s44211-024-00627-2. Epub 2024 Jul 6.
Contamination of college campus dust with heavy metals and the calculation of their ecological and health risks to the students and staff did not receive much attention except in recent years. This study aims to assess the ecological and human health risks of Cd, Cr, Cu, Pb, and Zn in interior dust of College of Science/University campus. An atomic absorption spectrophotometer was utilized to estimate the samples that were collected from 46 locations of the college campus including: classrooms, offices, and laboratories. The Pb, Cu, Cr and Zn metals in the interior dust of the College of Science pose low potential ecological risk, whereas Cd generates medium potential ecological risk. The gained results showed that the student and staff of the College are exposed to low non-cancerous health risks (HI < 1) caused by Cd, Cr, Cu, Pb, and Zn in interior dust. The total lifetime carcinogenic risks (TLCR) of Cd, Cr, and Pb are within the acceptable safe limit (10-10). The low non-carcinogenic health risks of Cd, Cr, Cu, Pb, and Zn and that the carcinogenic health risks of Cd, Cr and Pb fall within acceptable safe limits, measured in the interior dust of the campus of the College of Science, does not mean neglecting the continuous assessment of those risks.
除了近年来，校园灰尘中重金属的污染及其对学生和教职员工的生态和健康风险的计算并没有得到太多关注。本研究旨在评估大学科学学院校园内部灰尘中 Cd、Cr、Cu、Pb 和 Zn 的生态和人类健康风险。利用原子吸收分光光度计对从学院校园 46 个地点采集的样本进行了估计，包括教室、办公室和实验室。科学学院内部灰尘中的 Pb、Cu、Cr 和 Zn 金属具有低潜在生态风险，而 Cd 则具有中等潜在生态风险。研究结果表明，由于内部灰尘中的 Cd、Cr、Cu、Pb 和 Zn，科学学院的学生和教职员工面临着低非致癌健康风险（HI<1）。Cd、Cr 和 Pb 的总终生致癌风险（TLCR）在可接受的安全范围内（10-10）。校园科学学院内部灰尘中 Cd、Cr、Cu、Pb 和 Zn 的低非致癌健康风险以及 Cd、Cr 和 Pb 的致癌健康风险处于可接受的安全范围内，这并不意味着可以忽视对这些风险的持续评估。
