Impacts of illegal solid waste dumping on the water quality of the Mthatha River

IF 1.6 Q3 WATER RESOURCES Water Practice and Technology Pub Date : 2023-04-11 DOI:10.2166/wpt.2023.053
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Abstract

The world faces problems such as improper waste disposal that have spread to include disposal near water bodies. It is getting very difficult to find fresh water everywhere. Given that surface sources provide around one-third of the world's drinking water needs, contamination of these sources exacerbates the issue. This paper aimed at evaluating the impacts of solid waste on the water quality along the Mthatha River. During the rainy and dry seasons of 2021, Hanna probe instruments were used to assess the physicochemical quality of water before and after identifying illegal dump sites. To compare the measured mean values of water quality parameters, the data were analysed using ANOVA in SPSS version 22. In terms of temperature, dissolved oxygen, pH, nitrite, conductivity, and presence of Escherichia coli, the water quality in the sampling points after the illegal dump sites revealed deterioration, which was more severe in the rainy season and moderate in the dry season. The study's findings suggest that illegal dump sites along water bodies negatively impact the water quality. Diverse research on water pollution shows that declining water quality endangers aquatic species and is unsafe for human consumption. This paper recommends strengthening of laws against improper waste handling, and more frequent waste collection to prevent contamination of water bodies.
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非法倾倒固体废物对Mthatha河水质的影响
世界面临着诸如不当废物处理等问题,这些问题已经蔓延到水体附近的处理。到处都很难找到淡水。鉴于地表水源提供了世界约三分之一的饮用水需求,这些水源的污染加剧了这一问题。本文旨在评估固体废物对Mthatha河沿岸水质的影响。在2021年的雨季和旱季,汉纳探测仪器被用来评估在识别非法倾倒场之前和之后的水的物理化学质量。为了比较水质参数的测量平均值,在SPSS版本22中使用ANOVA对数据进行分析。从温度、溶解氧、pH值、亚硝酸盐、电导率和大肠杆菌的存在来看,非法倾倒场后采样点的水质出现恶化,雨季更严重,旱季中等。研究结果表明,水体沿岸的非法倾倒场会对水质产生负面影响。对水污染的多样性研究表明,水质下降危及水生物种,对人类消费不安全。本文建议加强针对不当废物处理的法律,并更频繁地收集废物,以防止污染水体。
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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