Health risk assessment of heavy metals in water, air, soil and fish

Koki, Isa Baba; Bayero, Amina Salihi; Umar, Aminu; Yusuf, Sabo

doi:10.5897/ajpac2015.0654

Cited by 73 publications

(20 citation statements)

References 40 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where CDI ingestion is the chronic daily intake of heavy metal through the ingestion pathway and SF HM is the oral slope factor of heavy metal. The slope factor of HMs considered in this study are as follows; 1.7 ( mgkg −1 day −1 ) for Ni 72 , 0.0085 ( mgkg −1 day −1 ) for Pb, and 0.5 ( mgkg −1 day −1 ) for Cr (extracted from the California Toxicity Criteria database and the Integrated Risk Information System database respectively). The acceptable standard of LTCR values ranges from 10 −6 to 10 −4 31 .…”

Section: Methodsmentioning

confidence: 99%

Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria

Emenike

Tenebe

Ogarekpe

et al. 2019

Sci Rep

View full text Add to dashboard Cite

The study investigated the concentration of potentially toxic heavy metals (PTHM) in groundwater sources (hand-dug wells and boreholes), spatial distribution, source apportionment, and health risk impact on local inhabitants in Ogun state. One hundred and eight water samples from 36 locations were analysed for Cr, Ni, Pb, Fe, Mn, Mg, Ca and Al. Mean values of 0.013, 0.003, 0.010, 0.088, 0.004 and 3.906 mg/L were obtained for Pb, Cr, Ni, Fe, Mn, and Al respectively at Iju district. Meanwhile, the average values of Pb, Ni, Fe, Mn, and Al concentrations at Atan district were 0.008, 0.0023, 0.011, 0.003, and 1.319 mg/L respectively. Results also revealed that the 44.4% and 11.13% of the borehole and well-water samples surpassed the World Health Organization limits for Pb at Atan. In Iju, the concentration of Pb and Al were relatively high, exceeding the stipulated standard in 100% of the samples. The Multivariate statistical analysis employed produced principal factors that accounted for 78.674% and 86.753% of the variance at Atan and Iju region respectively. Based on this, PTHM were traced to geogenic sources (weathering, dissolution, leaching) and anthropogenic emissions from industrial activities. In addition, the hazard quotient values obtained from the health risk assessment identified potential non-carcinogenic risk due to Pb via ingestion route. Ni was found to have high carcinogenic risk on adult and children, having exceeded the threshold limit. The outcome of the carcinogenic risk assessment revealed that 88.67% (for adults) and 1.12% (for children) of the cancer risk values surpassed the specified limits at Iju, whereas the cancer risk values were considerably lesser at Atan. In conclusion, the report of this study should serve as a beacon that will spark up strategic planning, comprehensive water resource management, and extensive treatment schemes in order to address the health complications linked with environmental pollution.

show abstract

Section: Methodsmentioning

confidence: 99%

Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria

Emenike

Tenebe

Ogarekpe

et al. 2019

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The human health risk assessment is a four step process that includes data collection and analysis, exposure assessment, toxicity assessment, and risk characterization. It is used to present the potential adverse health effects in humans because of exposure to harmful environmental substances (Isa et al 2015). For the management of contaminated areas, health risks for children and adults are calculated as non-carcinogenic risk and carcinogenic risk (CR) according to the USEPAB (USEPA 2004; Neris et al 2019;Emenike et al 2020).…”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

Spatial distribution characteristics and health risk assessment of heavy metals in surface sediment of the Hai River and its tributaries in Tianjin, China

Kang

Tian

Hai-ya

et al. 2021

Water Science and Technology

View full text Add to dashboard Cite

To assess the spatial distribution characteristics and health risk of heavy metals (Cu, Zn, Ni, Cd, Pb, and Cr) in surface sediment of the Hai River and its tributaries in Tianjin, China, 32 surface sediment samples were collected. All the heavy metals mainly occurred in residue, except Cd. Cd primarily existed in exchangeable fraction and posed a high risk to the aquatic environment. The mean values of pollution index followed a decreasing trend of Cu > Cd > Ni > Pb > Cr > Zn. The results of health risk assessment showed that the heavy metals were not a threat to local residents and Cr and Pb were the main contributors to the health risk. The carcinogenic risk posed by Cr was two orders of magnitude higher than that posed by Cd. A self-organizing map divided the 32 sites into three clusters and more attention should be paid to cluster 3. The results will be conducive to understanding the heavy metal pollution patterns and implementing effective and accurate management programs.

show abstract

“…The estimated daily dose and the cancer slope factor are multiplied together to find the lifetime cancer risk posed by the chemical. Cancer slope factors are estimates of carcinogenic potency and were used to relate estimated daily dose of the trace metal over a lifetime exposure to the lifetime probability of excess tumors Equation (2) (Lushenko, 2010;Koki et al, 2015;Kamunda et al, 2016).…”

Section: Carcinogenic Risk Assessmentmentioning

confidence: 99%

Assessing the Trace Metal Content of Groundwater in the Bakassi Peninsular, Onshore Rio del Rey, Akwa-Mundemba, Cameroun

Akoachere¹,

Hosono²,

Eyong³

et al. 2019

GEP

View full text Add to dashboard Cite

The present work assesses the trace metal content in groundwater from Akwa-Mundemba, Bakassi Peninsular in Cameroon. 12 groundwater samples were analyzed using Inductively Coupled Plasma Mass Spectroscopy ICP-MS. Field measurement of physicochemical parameters was determined. R-mode statistical analysis; Pearson's Correlation Analysis (PCA) together with Hierarchical Cluster Analysis (HCA) between the trace metals and the physico-chemical parameters was carried out. Ten indices were determined: Four trace metal hazard indices; the average daily dose ADD (2.5E−07 to 0.2)) carcinogenic risks CR (2.1E−06 to 9.9E−04) and the non-carcinogenic risk hazard quotient HQ (5.7E−04 to 0.78) which yields the hazard indices HI (0.1-0.78), and six trace metal pollution indices; Degree of contamination DC (−13.53 to −11.02), Enrichment factor EF (0.26-35.47), Ecological risk factor Er (−29.92-7.04), Potential ecological risk index RI (-61.2-43.43), Pollution load index PLI (−0.01-0.04) and Geo-accumulation index Igeo (4.8E-09-3.0). From health risk indices and pollution evaluation indices on trace metals, the groundwater in Akwa-Mundemba area is safe for drinking. The enrichment factors show that the sources of the trace metals are from geogenic and anthropogenic processes. Arsenic, Lead and Vanadium are enriched although they are below the hazard risk values; this shows they have pollution potential that could be attributed to weathering and agricultural wastes. The severity of metal toxicity is governed by several factors, such as dose, nutrition, age, and

show abstract

Health risk assessment of heavy metals in water, air, soil and fish

Cited by 73 publications

References 40 publications

Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria

Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria

Spatial distribution characteristics and health risk assessment of heavy metals in surface sediment of the Hai River and its tributaries in Tianjin, China

Assessing the Trace Metal Content of Groundwater in the Bakassi Peninsular, Onshore Rio del Rey, Akwa-Mundemba, Cameroun

Contact Info

Product

Resources

About