ArticleScientific reports2020
Levels of heavy metals in wastewater and soil samples from open drainage channels in Nairobi, Kenya: community health implication.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 97 papers, 1 of them a synthesis that pooled it.
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Who cites it
97 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Towards Integrated Air Pollution Monitoring and Health Impact Assessment Using Federated Learning: A Systematic Review.Frontiers in public health · 2022Pooled it
- Trial
- Different types of voltametric techniques for selective and sensitive detection of heavy metal ions in wastewater system: a review.RSC advances · 2026Review
- Eggshell-Activated Carbon from Water Hyacinths for Heavy Metal Removal from Wastewater: Isotherm and Kinetic Studies.Journal of xenobiotics · 2026Article
- Efficient Binary Solution Adsorption Using Polyurethane Foam Composites Integrated with Zr-MOF and Milled Activated Carbon.Polymers · 2026Article
- Lead contamination fixation through COScientific reports · 2026Article
- Adapting, piloting, and evaluating a pediatric lead screening and risk-reduction intervention in Nairobi: A hybrid implementation-effectiveness trial protocol.medRxiv : the preprint server for health sciences · 2026Article
- Holistic approach to assess human health risks, integrating physicochemical quality attributes and heavy metal levels in tap water.Toxicology reports · 2025Article
- Levels of heavy metals distribution near an urban wastewater in Southeastern Michigan.Scientific reports · 2025Article
- Article
- Assessment of Heavy Metal Accumulation in Wastewater-Receiving Soil-Exotic and Indigenous Vegetable Systems and Its Potential Health Risks: A Case Study from Blantyre, Malawi.International journal of environmental research and public health · 2025Article
- Bioprospecting Heavy-Metal Rhizospheres for Novel Therapeutics Against High-Priority Multi-Drug-Resistant Pseudomonas aeruginosa and Acinetobacter baumannii: A Case of Toxic to Treatment.Environmental microbiology reports · 2025Article
- Dose-Dependent Effects of ZnO Nanoparticles Towards the MicroalgaeInternational journal of molecular sciences · 2025Article
- Sewage intrusion into drinking water distribution systems: implications for water resource management.Environmental monitoring and assessment · 2025Review
- Heavy metal contamination in urban agriculture: evidence from Nairobi.Environmental science and pollution research international · 2025Article
- Application of andesite and hydrolyzed poly acrylonitrile andesite composite for adsorption of Al(III), Fe(III), CHScientific reports · 2025Article
- Impact of heavy metals on antibiotic resistance of Escherichia coli from slum wastewater in Kawempe division, Kampala district, Uganda: a case study.BMC microbiology · 2025Article
- Lignocellulosic Byproducts as Bio-Adsorbents for Lead Removal.Materials (Basel, Switzerland) · 2025Article
- Geospatial analysis of trace metal pollution and ecological risks in river sediments from agrochemical sources in Morocco's Sebou basin.Scientific reports · 2025Article
- Analysis of heavy metal tolerance and genomics in an indigenous Kurthia strain from Kulik River reveals multi-metal resistance and dominance of selection pressure on codon usage patterns.Archives of microbiology · 2025Article
37 more citing papers are in PubMed but not listed here.
Corrections and comments
- Erratum issued
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Levels of Mercury (Hg), Lead (Pb), Cadmium (Cd), Chromium (Cr), Nickel (Ni) & Thallium (Tl) were established in wastewater & soil samples obtained from 8 sites in open drainage channels at Nairobi industrial area, Kenya. Ultra-trace inductively coupled plasma mass spectroscopy (ICP-MS) was used for metal analysis. Temperature, pH & turbidity of wastewater ranged from 16.75 to 26.05 °C; 7.28 to 8.78; 160.33 to 544.69 ppm respectively and within World Health Organization (WHO) allowable limits. Wastewater conductivities in 4 sites ranged from 770 to 1074 µS/cm and above WHO limits at 25 °C. The mean concentrations of the metals in wastewater ranged from 0.0001 to 0.015 ppm in an ascending order of Tl <Cd <Hg <Ni <Cr <Pb. Levels of Cd, Cr & Ni in wastewater were within WHO, World Bank (WB), United States Environmental Protection Agency (US EPA), China, Kenya and India's Central Pollution Control Board (CPCB) limits while Hg & Tl were above US EPA limits. The mean Pb levels in wastewater (5 sites) were above WHO, US EPA and Kenya allowable limits. Mean levels of the metals in soil samples ranged from 0.085 to 199.99 ppm, with those of Hg, Pb, Cr, Cd & Ni being above WHO limits for agricultural soils. Positive correlations (P < 0.05) for Cd & Hg in soils; and Tl (wastewater) & Cd (soil) were noted. In conclusion, wastewater in open waste channels at Nairobi industrial area had elevated levels of Pb and Hg, while the soil from the same channels had high levels of Hg, Pb, Ni, Cr, and Cd. Good management of Nairobi industrial area effluents is inevitable since it borders densely populated informal settlements which are likely to suffer exposure to toxic wastes. Effective wastewater treatment and reuse is highly recommended.
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