Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
The Museum of Iranian Lichens, Iranian Research Organization for Science and Technology, Tehran, Iran.
Int J Environ Health Res. 2024 Mar;34(3):1270-1283. doi: 10.1080/09603123.2023.2174256. Epub 2023 Feb 14.
The lichen collected from an unpolluted area was exposed for 6 months at 26 sites for the sample chosenusing a stratified random design, and the content of potentially toxic elements (PTEs) including As, Cd, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Sn, V, and Zn, was assessed using ICP-MS. The health risk for both adults and children was then calculated using the PTEs concentrations. The results showed that despite the hostile urban conditions, transplanted lichens depicted clear deposition patterns of airborne PTEs, mostly associated with industrial sites, where As and other elements showed remarkably high values. The cumulative hazard index was below the risk threshold, both for adults and children. For the entire population (particularly children) residing in areas surrounding industrial sites, As and Cr appeared to be potentially carcinogenic elements.
从未受污染地区采集的地衣，采用分层随机设计在 26 个地点暴露 6 个月，使用 ICP-MS 评估包括砷（As）、镉（Cd）、铬（Cr）、铜（Cu）、铁（Fe）、汞（Hg）、锰（Mn）、钼（Mo）、镍（Ni）、铅（Pb）、锡（Sn）、钒（V）和锌（Zn）在内的潜在有毒元素（PTEs）的含量。然后，根据 PTEs 浓度计算成人和儿童的健康风险。结果表明，尽管城市环境恶劣，但移植的地衣显示出明显的空气传播 PTEs 沉积模式，主要与工业场所有关，这些场所的砷和其他元素含量非常高。成人和儿童的累积危害指数均低于风险阈值。对于居住在工业场所周围地区的所有人（尤其是儿童），砷和铬似乎是潜在的致癌元素。
