Mangrove (Avicennia marina) forests in the Red Sea cost have great concern from environmental, biological, economic, and social points of view. Therefore, assessing water contamination in this ecosystem is worth to be investigated. Consequently, here we aimed to examine the levels of salinity, acidity, and the total content of Fe, Mn, Cu, Zn, Cd, Cr, Ni, and Pb in water samples collected from the upper, middle, and lower part of three mangrove lagoons (i.e., Al-Shuaiba, Yanbu, and Jeddah), Red Sea, Saudi Arabia. The total metal content (µg L⁻¹) in water samples differed significantly among the studied areas and ranged from 286.2 to 4815.0 for Fe, 86.4–483.0 for Mn, 22.9–468.8 for Cu, 199.2–366.6 for Zn, 44.1–99.8 for Cd, 25.6–80.3 for Cr, 11.6–41.5 for Ni, and from 17.7 to 102.0 for Pb. The mean values of Cu, Zn, Cd, and Pb were higher than the WHO water quality standards for fisheries. Water samples in Yanbu were more contaminated and contained higher concentrations of all metals than Jeddah and Al-Shuaiba, due to the petrochemical industries in this industrial area. Our findings suggest that the high metal content in the water of these mangrove sites, particularly in Yanbu, should be considered due to the high potential environmental and human health risks in these ecosystems. These results may help for demonstrating effective approaches for the management of these lagoons. More studies will be carried out on the sediment and mangrove plants in this ecosystem.

从环境、生物、经济和社会的角度来看，红海红树林 ( Avicennia marina ) 的成本引起了极大的关注。因此，评估该生态系统中的水污染是值得研究的。因此，我们在这里的目的是检查从三个水样的上、中、下部分采集的水样中的盐度、酸度以及 Fe、Mn、Cu、Zn、Cd、Cr、Ni 和 Pb 的总含量。红树林泻湖（即，Al-Shuaiba、Yanbu 和 Jeddah），红海，沙特阿拉伯。总金属含量 (µg L ^-1) 在不同研究区域的水样中差异显着，Fe 为 286.2 至 4815.0，Mn 为 86.4-483.0，Cu 为 22.9-468.8，Zn 为 199.2-366.6，Cd 为 44.1-99.8，Cr 为 25.6-80.3，11.6 Ni 为 –41.5，Pb 为 17.7 至 102.0。铜、锌、镉和铅的平均值高于世界卫生组织渔业水质标准。由于该工业区的石化工业，延布的水样比吉达和阿尔帅巴的水样污染更严重，所有金属的浓度也更高。我们的研究结果表明，由于这些生态系统中潜在的环境和人类健康风险很高，因此应考虑这些红树林地点（尤其是延布）水中的高金属含量。这些结果可能有助于展示管理这些泻湖的有效方法。