Geology and Geophysics Department, College of Science, King Saud University, Riyadh, Saudi Arabia.
Department of soil Science, College of Food & Agriculture Sciences, king Saud University, Riyadh, Saudi Arabia.
Bull Environ Contam Toxicol. 2024 Jul 15;113(1):12. doi: 10.1007/s00128-024-03923-9.
The study investigates heavy metal (HM) contamination in coastal sediments of Jeddah along Red Sea coast, analyzing spatial distribution and sources. 24 samples underwent (ICP-AES) for Fe, Al, Mn, Ni, Pb, Zn, Cu, Cr, Co, Sr, V, and As. HM averages followed Fe ˃ Al ˃ Sr ˃ Mn ˃ Zn ˃ V ˃ Cu ˃ Ni ˃ Cr ˃ As ˃ Co ˃ Pb. Contamination indices revealed severe Sr enrichment, minor As and Co enrichment, and no enrichment for other HMs. Sediment quality guidelines suggest Ni, Cu, Zn, and As risks to benthic communities at some sites, while Cr and Pb pose minimal risk. Multivariate analysis indicates natural sources for Fe, Al, Mn, Ni, Zn, Cu, Cr, Co, and V, and anthropogenic sources for Sr, As, and Pb, linked to agriculture, industry, and urbanization. Increased Sr values may stem from seawater acidification impacting calcitic corals and molluscs.
本研究调查了红海沿岸吉达沿海沉积物中的重金属 (HM) 污染情况，分析了其空间分布和来源。对 24 个样本进行了 (ICP-AES) 分析，以测定 Fe、Al、Mn、Ni、Pb、Zn、Cu、Cr、Co、Sr、V 和 As 的含量。HM 的平均值依次为 Fe > Al > Sr > Mn > Zn > V > Cu > Ni > Cr > As > Co > Pb。污染指数显示 Sr 严重富集，As 和 Co 轻微富集，其他 HM 无富集。沉积物质量准则表明，在一些地点，Ni、Cu、Zn 和 As 对底栖生物群落存在风险，而 Cr 和 Pb 的风险较小。多元分析表明，Fe、Al、Mn、Ni、Zn、Cu、Cr、Co 和 V 来自自然源，Sr、As 和 Pb 来自农业、工业和城市化等人为源，与农业、工业和城市化有关。Sr 含量的增加可能源于海水酸化对碳酸钙珊瑚和软体动物的影响。
