...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>American Journal of Zoology >Heavy Metal Analysis of Selected Estuarine Fish Species from Oron River, Oron Local Government Area, Akwa Ibom State, Nigeria
【24h】

Heavy Metal Analysis of Selected Estuarine Fish Species from Oron River, Oron Local Government Area, Akwa Ibom State, Nigeria

机译：来自尼日利亚州奥朗河，奥朗地方政府区的选定河口鱼类的重金属分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Environmental pollution is a worldwide problem, heavy metals belonging to the most important pollutants. The progress of industries has led to increased emission of pollutants into ecosystems. Oron River is one of the most important aquatic environment, which receives effluents discharges from heavily industrialized and highly populated settlements. Metals tend to accumulate in water and move up through the food chain. So, studies to ascertain the level of heavy metals in environment and determine potentially hazardous levels for human are necessary. In this study heavy the heavy metals profile [Lead (Pd), Zinc (Zn), Chromium (Cr), Cadmium (Cd), Iron (Fe)], in sea food with special reference to selected fishes Hydrocynus lineatus (African tiger fish), Chrysichthys aluuensis (Catfish), Distichodus rostratus (Grass eater), Tilapia guieensis (Tilapia), Arius gigas (Giant sea catfish) using Atomic Absorption spectrophotometer. The heavy metal profile was observed in the order of intestine, gills, skin and Lead, Cadmium, Chromium, Iron and Zinc respectively. Most of the metals were below the maximum allowable levels set by WHO, FEPA and USEPA except Chromium with 1.02 on the gills. This indicates that an urban and industrial waste discharged into Oron River has a significant effect on the ecological balance of the river, which shows that the fish species and seafood from the river are safe for consumption. In conclusion, the levels of heavy metals observed in the fish and water samples can be considered as a serious matter. More safe and economic methods for the elimination of heavy metals from contaminated waters are needed and continuous assessment of the level of pollution of the lake waters and fish with heavy metals is also necessary. Safe disposals of domestic sewage and industrial effluents as well as enforcement of laws enacted to protect our environment are therefore advocated.
机译：环境污染是一个全球问题，属于最重要的污染物的重金属。行业的进展导致将污染物的排放增加到生态系统中。 Oron River是最重要的水生环境之一，它受到重大工业化和高度填充的沉淀物的污水。金属倾向于在水中积聚并通过食物链移动。因此，需要研究环境中重金属水平并确定人类潜在的危险水平是必要的。在这项研究中，重金属型材[铅（Pd），锌（Zn），铬（Cr），镉（Cd），铁（Fe）]，在海鲜中，特别参考选定的鱼类水杨属lineatus（非洲老虎鱼），Chrysichthys Aluuensis（鲶鱼），Distichodus rostratus（草食者），罗非鱼Guieensis（罗非鱼），使用原子吸收分光光度计，Arius Gigas（巨型海鲶鱼）。分别以肠，鳃，皮肤和铅，镉，铬，铁和锌的顺序观察重金属型材。大多数金属低于WHO，FEPA和USEPA的最大允许水平，除了麦克风上的铬。这表明排放到Oron River中的城市和工业废物对河流的生态平衡有重大影响，这表明来自河流的鱼类和海鲜是安全的消费。总之，鱼类和水样中观察到的重金属水平可以被认为是严重的问题。需要更安全和经济的消除来自受污染水域的重金属的方法，并且还需要持续评估湖泊水平和具有重金属的鱼类的污染。因此，倡导了国内污水和工业污水的安全处理，以及制定了保护我们的环境的法律。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号