伊拉克Al-Hawizeh沼泽地区水、沉积物、长尾角藻和马铃薯植物中几种重金属离子(Fe、Cu、Ni、Zn、Cr、Pb和Cd)的初步评价

Q3 Environmental Science

Journal of Water and Environment Technology Pub Date : 2021-01-01 DOI:10.2965/jwet.20-160

Al-thahaibawi B.m.h.

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引用次数: 2

摘要

2017年12月至2018年11月，在Al-Hawizeh沼泽的4个地点收集了季节性的水、沉积物和两种淹没植物——长尾角藻(Ceratophyllum demersum)和马铃薯(Potamogeton pectinatus)样本，评估了几种重金属(Fe、Cu、Ni、Cd、Pb、Cr和Zn)的浓度，并使用火焰原子吸收分光光度计进行了分析。将所有浓度与水生生物的允许限值进行比较。这些发现澄清了金属的含量，如下所示:沉积物、植物、水。沉积物中重金属浓度递减顺序为Fe > Ni > Cd > Cu > Cr > Zn > Pb (mg/kg)，植物为Fe > Zn > Cd > Cr > Ni > Pb > Cu (mg/kg干重)，水中为Fe > Ni > Zn > Pb > Cr > Cd (mg/L)。所有金属在水中的浓度都没有超过允许的限度，其中Fe、Ni和Pb在水样中的浓度高于其他金属。沉积物中除冬季未检出Cd (ND)外，Fe、Ni、Cd均超过允许限量，Zn、Pb均未超过推荐限量。植物内样品中铁、镉、锌、铬超标，而铜、铅未超标，果木中铁、镉、锌超标，而Ni、Cu、Cr、Pb在本研究期间均未超标。采用Pearson相关法检测金属浓度之间的相互关系。植物与水样与沉积物呈显著正相关(p≤0.05)。

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Preliminary Assessment of Several Heavy Metal Ions (Fe, Cu, Ni, Zn, Cr, Pb, and Cd) in Water, Sediment, Ceratophyllum demersum, and Potamogeton pectinatus Plants from Marsh Al-Hawizeh, Iraq

Seasonal samples of water, sediments, and two submerged plants, Ceratophyllum demersum and Potamogeton pectinatus , were collected from four sites within Al-Hawizeh marsh between December 2017 and November 2018 to assess several heavy metal concentrations (Fe, Cu, Ni, Cd, Pb, Cr, and Zn) and analyzed by using Flame Atomic Absorption Spectrophotometer. All concentrations were compared to permissible limits for aquatic life. The findings have clarified levels of metals so as the following: Sediments > plants > water. Concentrations of heavy metals in sediment decreased within the sequence Fe > Ni > Cd > Cu > Cr > Zn > Pb (mg/kg), plants as Fe > Zn > Cd > Cr > Ni > Pb > Cu (mg/kg dry weight), in water as Fe > Ni > Zn > Pb > Cr > Cd (mg/L). The concentrations of all metals in water didn’t exceed the permissible limit, thus Fe, Ni, and Pb showed a greater concentration in water samples than other metals. In sediments Fe, Ni, and Cd have exceeded the permissible limits except Cd wasn’t detected (ND) during the winter, whereas, Zn and Pb didn’t exceed the recommended limits. In-plant samples as C. demersum Fe, Cd, Zn, and Cr have exceeded the allowable limits, while Cu and Pb didn’t exceed the permissible limits, also in P. pectinatus Fe, Cd, and Zn have exceeded the permissible limits, whereas, Ni, Cu, Cr, and Pb didn’t exceed the permissible limits altogether seasons during this study. The correlation of Pearson was administered to detect the interrelationship between metal concentrations. A significant positive correlation ( p ≤ 0.05) was found in sediment rather than plants and water samples.

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来源期刊

Journal of Water and Environment Technology Environmental Science-Water Science and Technology

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

43 weeks

期刊介绍： The Journal of Water and Environment Technology is an Open Access, fully peer-reviewed international journal for all aspects of the science, technology and management of water and the environment. The journal’s articles are clearly placed in a broader context to be relevant and interesting to our global audience of researchers, engineers, water technologists, and policy makers. JWET is the official journal of the Japan Society on Water Environment (JSWE) published in English, and welcomes submissions that take basic, applied or modeling approaches to the interesting issues facing the field. Topics can include, but are not limited to: water environment, soil and groundwater, drinking water, biological treatment, physicochemical treatment, sludge and solid waste, toxicity, public health and risk assessment, test and analytical methods, environmental education and other issues. JWET also welcomes seminal studies that help lay the foundations for future research in the field. JWET is committed to an ethical, fair and rapid peer-review process. It is published six times per year. It has two article types: Original Articles and Review Articles.