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G. Nyaga

Publications (3)

Removal of Pharmaceutical Residues from Wastewater using Activated Carbon from Rice Husks

P. Kahara, A. Gachanja, J. Kiptoo & G. Nyaga · Chemical Science International Journal · 2021

The presence of pharmaceutical residues in discharges that end up in rivers is a growing concern for the disruption of aquatic ecosystems and human health. The risk of exposure to these medical wastes becomes greater because they are not biodegradable even after sewage treatment....

Open access Research Article 10.9734/CSJI/2021/v30i530229

Quantification and Speciation of Lead, Cadmium and Chromium in Dandora Dumpsite Soils

P. M. Kahara, J. Murungi, J. K. Kiptoo & G. Nyaga · Chemical Science International Journal · 2020

Open dumpsites are one of the main sources of heavy metals and as a result, lots of research has been undertaken on the pseudo-total content of heavy metals in dumpsite soils, but little research on the forms in which they exist. The current research was carried out to determine...

Open access Research Article 10.9734/CSJI/2020/v29i330166

Determination of Selected Heavy Metals in Tobacco Tree Shrubs Growing around Dandora Dumpsite, Nairobi, Kenya

P. M. Kahara, J. Murungi, J. K. Kiptoo & G. Nyaga · Chemical Science International Journal · 2019

Environmental pollution by heavy metals is presently a serious threat to public health. Despite the toxic contaminants contained in municipal waste, most of the dumpsites remain unregulated and uncontrolled. The objective of this study was to determine the levels of Pb, Cr and Cd...

Open access Research Article 10.9734/CSJI/2019/v27i330117