Water quality of the Blue Nile at Khartoum, Sudan, before complete filling of the Grand Ethiopian Renaissance Dam

IF 1.1 4区环境科学与生态学 Q3 MARINE & FRESHWATER BIOLOGY African Journal of Aquatic Science Pub Date : 2022-11-07 DOI:10.2989/16085914.2022.2123304

Amh Bashir, ME Abdelrahman, F. Sinada

{"title":"Water quality of the Blue Nile at Khartoum, Sudan, before complete filling of the Grand Ethiopian Renaissance Dam","authors":"Amh Bashir, ME Abdelrahman, F. Sinada","doi":"10.2989/16085914.2022.2123304","DOIUrl":null,"url":null,"abstract":"Physico-chemical variables were monitored biweekly for the Blue Nile at Khartoum between July 2017–June 2019. The aim was to document the present status of water quality at Khartoum before complete filling of the Grand Ethiopian Renaissance Dam (GERD). Physico-chemical parameters within acceptable limits recommended by WHO for drinking water included pH (7.2–10.8), temperature (13.7–30.4 °C), conductivity (137–281 μS cm−1), total dissolved solids (75–141 mg l−1), total residue (5–3194 mg l−1), alkalinity (93–176 mg CaCO3 l−1), dissolved oxygen (3.5–10.9 mg l−1), nitrite–nitrogen (<detection limit (DL)−43 µg l−1), ammonium–nitrogen (<DL−940 µg l−1), nitrate– nitrogen (<DL−1468 µg l−1), phosphate–phosphorus (<DL−63 µg l−1), silica (4.0–23.6 mg l−1), iron (<DL−250 µg l−1) sodium (3.2–15.7 mg l−1), potassium (0.7–5.6 mg l−1), calcium (6.2–30.3 mg l−1), and magnesium (1.5–11.5 mg l−1). Total residue and pH were amongst the measured variables that were outside of the WHO recommendations. This study revealed that the Blue Nile remains generally unpolluted, and has not been significantly negatively affected by runoff from urbanisation or sewage contamination. This study presents further evidence that industrial wastes discharged upstream of Khartoum have not accumulated downstream as they are carried into the Main Nile by the annual floodwater pulses. The water is therefore currently suitable for drinking and all other uses. However, accumulation of pollutants in the Blue Nile may be problematic once filling of the GERD is complete as the discharge during flooding events necessary to flush the river will be reduced.","PeriodicalId":7864,"journal":{"name":"African Journal of Aquatic Science","volume":"48 1","pages":"28 - 48"},"PeriodicalIF":1.1000,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"African Journal of Aquatic Science","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.2989/16085914.2022.2123304","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}

引用次数: 1

Abstract

Physico-chemical variables were monitored biweekly for the Blue Nile at Khartoum between July 2017–June 2019. The aim was to document the present status of water quality at Khartoum before complete filling of the Grand Ethiopian Renaissance Dam (GERD). Physico-chemical parameters within acceptable limits recommended by WHO for drinking water included pH (7.2–10.8), temperature (13.7–30.4 °C), conductivity (137–281 μS cm−1), total dissolved solids (75–141 mg l−1), total residue (5–3194 mg l−1), alkalinity (93–176 mg CaCO3 l−1), dissolved oxygen (3.5–10.9 mg l−1), nitrite–nitrogen (

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

青尼罗河在苏丹喀土穆的水质，在埃塞俄比亚复兴大坝完全填满之前

2017年7月至2019年6月，喀土穆对青尼罗河的物理化学变量进行了每两周一次的监测。目的是在埃塞俄比亚复兴大坝（GERD）完全填筑之前，记录喀土穆的水质现状。世界卫生组织推荐的饮用水可接受限值范围内的理化参数包括pH（7.2–10.8）、温度（13.7–30.4°C）、电导率（137–281μS cm−1）、总溶解固体（75–141 mg l−1），总残留量（5–3194 mg l−2）、碱度（93–176 mg CaCO3 l−1，铵态氮（

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

African Journal of Aquatic Science MARINE & FRESHWATER BIOLOGY-

CiteScore

3.90

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The African Journal of Aquatic Science is an international journal devoted to the study of the aquatic sciences, covering all African inland and estuarine waters. The Journal publishes peer-reviewed original scientific papers and short articles in all the aquatic science fields including limnology, hydrobiology, ecology, conservation, biomonitoring, management, water quality, ecotoxicology, biological interactions, physical properties and human impacts on African aquatic systems.