Determination of Some Selected Heavy Metals in Effluents from Lubricants Manufacturing and Associated Contamination of Oysters (Crassostrea cucullata) and Soil near Discharge Points in Mombasa, Kenya

Authors

  • Simiyu T. Wechuli Department of pure and applied sciences, Technical University of Mombasa https://orcid.org/0009-0004-0795-6803
  • Daniel Munga Department of pure and applied sciences, Technical University of Mombasa
  • Risper A. Magwa Department of pure and applied sciences, Technical University of Mombasa

DOI:

https://doi.org/10.47672/jchem.1663

Keywords:

Heavy Metals, Physico-Chemical Properties, Effluents, Lubricants, Soil, Crassostrea Cucullata.

Abstract

Purpose: Available reports on heavy metal contamination along the Kenyan coastal zone focused on concentration levels in marine and coastal waters, sediments and biota, with indications of potential sources. However, information on contribution of specific sources to the heavy metal load into the marine and coastal environment is scanty or unavailable. Thus, this study addressed the need to assess specific potential sources and their contribution to heavy metal contamination. The generated data can be applied for monitoring discharge loads of heavy metals from lubricant manufacturing processes into the environment, its level of contamination to the environment and the potential risk to man through food chain.

Materials and Methods: Concentrations of selected heavy metals Cd, Cr, Cu, Pb, and Hg in effluents filtrates, residues (SPM), Oysters (Crassostrea cucullata) and soil samples were determined using ICP-OES. The procedures of the analytical methods and instruments used were validated with analysis of a multi-element certified reference material (CRM IAEA-452) for the elements Cd, Cr, Cu, Pb and Hg in the effluent samples and standard reference material (SRM 1566b) from National institute standards and technology for the elements Cd, Cr, Cu, Pb and Hg in the marine bivalve tissues. Physico - chemical parameters Temperature, PH, Conductivity, Dissolved oxygen and Total organic carbon were also determined in the effluent samples.  Sampling was done in the year 2021 and 2022. Effluent samples were collected from OLA energy Kenya limited, VIVO energy Kenya limited and TOTAL energy Kenya limited. Oyster samples and soil sediment samples were collected from Makupa creek. Data analysis was carried out using (SPSS) for Windows (Version 16) and one way analysis of variance (ANOVA) at 95% confidence level. The difference in mean concentrations of heavy metals within and between groups were considered significant at PË‚0.05. The interrelationships of heavy metals contamination in the samples were determined using the Pearson correlation coefficient. It was considered significant at P value Ë‚0.05.

Findings: This study showed presence of heavy metals that varied in concentrations in effluents samples, soils samples and Oyster samples. The mean concentrations of heavy metals in the effluents filtrates ranged as follows Pb = 0.0038±0.0004 mg/l - 0.0025 ± 0.003 mg/l, Cu = 0.0054±0.0038 mg/l - 0.0019±0.0002 mg/l, Cr = 0.0071±0.0021mg/l - 0.0045±0.0022 mg/l, Cd = 0.0041±0.0026 mg/l - 0.0013±0.0001 mg/l and Hg = 0.0063±0.0018 mg/l - 0.0026±0.0004 mg/l. The range of values for the mean concentrations of the heavy metals in the Oysters showed that Pb = 0.0227±0.0091mg/kg - 0.019 ± 0.006 mg/kg, Cu = 0.0618±0.0171mg/kg - 0.0601±0.0168 mg/kg, Cr = 0.0265 ± 0.0277 mg/kg - 0.0152 ± 0.0009 mg/kg, Cd = 0.0464±0.0282 mg/kg - 0.0273 ± 0.0117 mg/kg and Hg = 0.0264±0.0158 mg/kg - 0.025±0.0080 mg/kg. The range of values for the mean concentrations of the heavy metals in the soil samples showed that Pb = 0.0523 ± 0.0189 mg/kg - 0.0447±0.0181 mg/kg, Cu = 0.3010 ± 0.0282 mg/kg - 0.2437 ± 0.2690 mg/kg, Cr = 0.6564 ± 0.1468 mg/kg - 0.5862 ± 0.3073 mg/kg, Cd = 0.5434 ± 0.2207 mg/kg - 0.3506±0.2157 mg/kg and Hg = 0.2679 ± 0.1923 mg/kg - 0.2366±0.1584 mg/kg. The range values for the Physico-chemical parameters in the effluent samples were PH = 7.31±0.198 - 6.53±0.459, Temperature = 27.53±0.378oC - 23.3±0.2oC, Dissolved oxygen = 6.81±0.191mg/l - 3.11±0.242 mg/l, conductivity = 2740.0±901.041 uS/cm - 1523.33±55.075 uS/cm, Total organic carbon = 15.18±1.2750 mg/l - 0.92±0.1026 mg/l. Concentrations of heavy metals were at safe limits set by WHO, US - EPA and NEMA (2017) except Hg in soil samples was slightly above permissible limits. Concentration of mercury was lower in effluent filtrates and effluents residues samples than in soil and Oysters samples.  

Implications to Theory, Practice and Policy: This study recommends that frequent inspection be carried out on wastes emanating from industries, at its disposal sites and in living organisms at the vicinity of the wastes disposal sites. Industrialists should adopt best practices of wastes disposal and management to reduce emissions of harmful substances into the environment. Public education and awareness should be carried out to enlighten the residents about the impacts on health upon interaction with the polluted environment and feeding on organisms that reside in such contaminated environments.

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References

Alexis B. Nienie, Periyasamy Sivalingam, Amandine Laffite, Patience Ngelinkoto, Jean-Paul Otamonga, Alphonse Matand, Crispin K. Mulaji, Josue I. Mubedi, Pius T. Mpiana and John Pote. Seasonal variability of water quality by physicochemical indexes and traceable metals insuburban area in Kikwit, Democratic Republic of Congo (2017). Doi .org/10.1016/j.iswcr.2017.04.004

Ann Wairimu Muohi, John MmarinOnyari, Joyce Atieno Omondi and Kenneth Mavuti. Heavy metals in sediments from Makupa and Port-Reitz creek systems: Kenyan coast. Doi: 10.1016/S0160-4120(02)00104-6

Don M. Pirro, Martin Webster, Ekkehard Daschner. Lubrication Fundamentals, Revised and expanded, 3rd edition (2016). DOI; https://doi.org/10.1201/b19217, ISBN 9781315367033, subject Engineering and Technology.

Geoffrey K. Kinuthia, Veronica Ngure, Dunstone Bet, Reuben Lugalia, Agnes Wangila and Luna Kamau. Levels of heavy metals in wastewater and soils samples from open drainage channels in Nairobi, Kenya. Community health implication (2020). Scientific reports. Article number: 8434

Haiyan Ali, Anbang Shi, Mingyi Li and Xiaoran Zhang. Effects of PH, temperature, Dissolved Oxygen and flow rate of overlying water on heavy metals release from storm sewer sediments (2013). Journal of chemistry. 2013(11-12):1-11. DOI:10.1155/2013/434012.

Hazrat Ali and Ezzat Khan. Trophic transfer, bioaccumulation and biomagnification of non-essential hazardous heavy metals and metalloids in food chain/webs - Concepts and implications for wildlife and human health (2018). Human and ecological risk assessment 25(6):1353-1376. DOI: 10.1080/10807039.2018.1469398.

Joshua N. Edokpayi, John O. Odiyo, Elizabeth O. Popoola and Titus A.M. Msagati (2017). Evaluation of temporary seasonal variation of heavy metals and their potential ecological risk in Nzelele River, South Africa. https://doi.org/10.1515/chem-2017-0033

Koller, M., and Saleh, H. M. (2018). Introductory Chapter: Introducing Heavy Metals. Heavy Metals, 1-11. https://doi.org/10.5772/intechopen.74783

Mansourri, G. & Madani, M. Examination of the level of heavy metals in wastewater of Bandar Abbas Wastewater Treatment Plant. Open Journal of Ecology 6, 55-61, https://doi.org/10.4236/oje.2016.62006 (2016).

Okeyo Benard and Wangila Abraham. Lead poisoning in Owino Uhuru Slums in Mombasa Kenya (2012). IPEN - ISIP PROJECT.

Philip K. Maritim, A.N Gachanja, and T.M. Munyao. Speciation of trace metals Pb, Zn, Cu and Cd in superficial sediment from Makupa creek Mombasa coastal Kenya (2016). Doi: 10.4236/oalib.1102679

Rai, P. K., Lee, S. S., Zhang, M., Tsang, Y. F., and Kim, K.-H. (2019). Heavy metals in food crops: Health risks, fate, mechanisms, and management. Environment International, 125, 365-385. https://doi.org/10.1016/j.envint.2019.01.067

Ricardo Aucelio, Roseli Martins de Souza, Reinaldo Calixto de Campos, Norbert Miekeley. The determination of trace metals in lubricating oils by atomic spectrometry (2007). DOI: 10.1016/j.sab.2007.05.003.

Salim H. Mwatsahu, Ruth Wanjau, Mwakio Tole and Daniel Munga. Heavy metal contamination in water, sediments and fauna of selected areas along the Kenyan coastline (2020). Doi: 10.13057/ocean life/o040105

Sarah Gonzalez Henao and Thaura Ghneim -Herrera. Heavy metals in soils and the remediation potential of bacteria associated with the plant microbiome (2021).

Sayka Jaham and Vladimir Strezov. Assessment of trace elements pollution in the sea ports of New South Wales (NSW), Australia using oysters as bioindicators. Scientific reports. Article number: 1416 (2019). https://doi.org/10.1038/s41598-018-38196-w

Sherene Rajammal. Effect of Dissolved Organic Carbon (DOC) on heavy metals mobility in soils (2009). Nature Environment and pollution technology. 8(4): 817-821

T. I. Moiseenko and N.A Gashkina. Distribution and bioaccumulation of heavy metals (Hg, Cd and Pd) in fish: influence of the aquatic environment and climate (2020). DOI 10. 1088/1748-9326/abbfc7c

Tchounwou, P. B., Yedjou, C. G., Patlolla, A. K., and Sutton, D. J. (2012). Heavy Metal Toxicity and the Environment. Experientia Supplementum, 133-164. https://doi.org/10.1007/978-3-7643-83404_6

Tolesa Tesfau, adigi Balcha and Muktar Hassen. Assessment of levels of some selected Heavy metals and Physicochemical in Abzana water Samples, Kibet Woreda, Ethiopia. DOI: https://doi./org/10.21203/rs-696893/v1

Tsuyoshi Yoda, Satoko Ichinohe and Yukihito Yokosawa. Rapid analysis of minerals in Oysters using microwave decomposition and inductively coupled plasmaatomic emission spectrometry. https://doi.org/10.1016/j.aqrep.2021.100585

WHO. Adverse Health Effects of heavy Metals in Children. Children's Health and the Environment; WHO Training Package for the Health Sector, October (2011a).

Yanhao Zhang, Haohan Zhang, Zhibin Zhang, Chengying Liu, Cuizheng Sun, Wen Zhang and Taha Marhaba. PH effect on heavy metal release from a polluted sediment (2018).

Ramzy A. Yousif, Muhammad Iqbal Choudhary, Shakel Ahmed, Quratulan Ahmed. Bioaccumulation of heavy metals in fish and other aquatic organisms from Karachi Coast, Pakistan (2021). DOI: 10.13057/nusbiosci/n130111

Thermo Fisher Scientific (2021). Sample preparation techniques for AAS, ICP-OES and ICP-MS for regulated testing laboratories.

Zach (2020). How to perform a One-way ANOVA in SPSS. Statistics simplified, Statology.

NEMA (2019). Environmental management and coordination (Toxic and hazardous chemicals and materials management) regulations 2019.

Wokoma, O. A. F., & Edori, O. (2017). Heavy metals content of an oily wastewater effluent from an oil firm at the point of discharge. International journal of chemistry, pharmacy & technology, 2, 154-161.

Sumanta Das, Kaniz Wahida Sultana, Ashwell R Ndhlala, Moupriya Mondal and Indrani Chandra (2023). Heavy metal pollution in the environment and its impact on health. https://doi.org/10.1177/11786302231201259.

Emmanuel, A., Cobbins, S.J., Adomako, D. Duwiejuah, A.B and Asare, W. (2014). Assessment of heavy metals concentration in soils around oil filling and service stations in the Tamale Metropolis, Ghana. DOI: 10.5897//AJEST2014.1664. ISSN 1996-0794

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Published

2023-11-25

How to Cite

Wechuli, S. ., Munga, D. ., & Magwa, R. . (2023). Determination of Some Selected Heavy Metals in Effluents from Lubricants Manufacturing and Associated Contamination of Oysters (Crassostrea cucullata) and Soil near Discharge Points in Mombasa, Kenya. Journal of Chemistry, 2(1), 14–24. https://doi.org/10.47672/jchem.1663