Heavy Metal Contamination of Soils along Roadsides in Port Harcourt Metropolis, Nigeria

Ideriah, T. J. K.; Braide, S. A.; Izonfuo, W. A. L.; Adiukwu, P. U.

doi:10.1007/s00128-004-0394-0

Cited by 9 publications

(4 citation statements)

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“…A number of researchers have investigated the levels, sources, and/or major factors of distribution of pollutants (primarily metals) in roadside sediment or dust (Hopke et al, 1980;Ellis and Revitt, 1982;Lindgren, 1996;Yang et al, 1997;Brinkmann, 1998;Krein and Schorer, 2000;Sutherland and Tolosa, 2000;Yun et al, 2000;Brinkmann and Tobin, 2001;Liebens, 2001;Pagotto et al, 2001;Vaze and Chiew, 2002;Elik, 2003;Sutherland, 2003;Ideriah et al, 2004). Pollutant levels depend on traffic density, age of site, type of pavement, weather, type of street-sweeping equipment, or parameters influencing pollutant retention (temperature, nature of soil).…”

Section: Introductionmentioning

confidence: 98%

Characterization of pollutants in Florida street sweepings for management and reuse

Jang¹,

Jain²,

Tolaymat³

et al. 2009

Journal of Environmental Management

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Section: Introductionmentioning

confidence: 98%

Characterization of pollutants in Florida street sweepings for management and reuse

Jang¹,

Jain²,

Tolaymat³

et al. 2009

Journal of Environmental Management

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“… 3 , 7 , 13 , 14 Other studies include an examination of the levels of total hydro-carbon in plants along the roads Port Harcourt City, the effects of heavy metals on topsoil at the vicinity of automobile mechanic villages in Owerri, Nigeria, and the level of pollution of the soil caused by automobile workshop waste. 15–20 None of these studies have investigated the influence of automobile workshop wastes on C. papaya , despite the fact that it is a common plant growing naturally around mechanic workshops in Nigeria. C. papaya is a fruit commonly consumed all around the world, especially in the developing world.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Heavy Metal Concentrations in Pawpaw (Carica papaya Linn.) around Automobile Workshops in Port Harcourt Metropolis, Rivers State, Nigeria

Eludoyin

Ogbe

2017

Journal of Health and Pollution

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Background.Consumption of plants such as Carica papaya grown around automobile workshops is common in big cities in Nigeria. However, little is known about the heavy metals contamination of these consumables due to the influence of automobile emissions during maintenance activities.Objectives.This study aimed to assess heavy metal concentrations in C. papaya and supporting soils around automobile workshops in Port Harcourt Metropolis, Rivers State, Nigeria.Methods.Seven automobile workshops were used for the present study. First, 20 m × 20 m quadrats were laid out for soil and C. papaya tissue sampling. One composite soil sample was collected from the topsoil (0–15 cm depth) around each of the automobile workshops. Three C. papaya stands at least 30 cm apart around each workshop were used for the study and from these stands, tissues (root, stem, leaf, fruit) of C. papaya were collected. Standard laboratory techniques were used to determine the pH, electrical conductivity (EC) and heavy metals (lead (Pb), mercury (Hg), cadmium (Cd), copper (Cu), and zinc (Zn)) in the soil samples and C. papaya tissues. Pairwise t-test was used to determine significant differences (p<0.05) in the heavy metal concentrations in soil and C. papaya tissues between the sample and control sites, while correlation statistics were used to determine the relationship of heavy metal concentrations between soil and C. papaya tissues.Results.C. papaya tissues and supporting soil had significantly higher levels of pH, EC and heavy metals in the sampled plots than the control plot. The heavy metal concentrations in C. papaya and soil occurred in the decreasing order of Pb>Cu>Hg>Zn>Cd. The fruit of C. papaya had the highest mean concentrations of Pb (51.4±14.1 mg/kg) and Zn (26.4±1.9 mg/kg), while the leaf had the highest mean concentration of Hg (32.0±2.3 mg/kg). The pH, Cu and Zn in the supporting soil were significantly correlated with the levels in the C. papaya tissues.Conclusion.Bio-accumulation of heavy metals by C. papaya is evident around automobile workshops, and Pb, Hg, Cd concentrations were found to be above the permissible limits for human consumption according to World Health Organization (WHO) standards. Consumption of food materials grown around automobile workshops could pose health risks.

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“…Pb, Ni and Cd in the soil were determined according to the method of [18]. Exactly 0.2 g of the soil sample was weighed and 6ml freshly prepared aqua-regia (1:3) HNO 3 :HCl respecttively was added and allowed to stand overnight and placed in a digestion block for about 30 mins.…”

Section: ) Determination Of Soil Pb Ni and CDmentioning

confidence: 99%

Environmental and Health Impact of Cement Factory Production in Ibese, Ogun state, Nigeria

et al. 2016

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This study investigated the effect of cement dust emitted from Dangote cement factory, Ibese, Ogun State, Nigeria on the environment and human health. Soil and plant samples were col-lected from six sampling points at different distances i.e. inside the factory kiln (IFK), the factory 300m), based on the prevailing wind direction. Control samples were taken opposite the wind direction at ILA(Ilaro) about 1,000 m. Cu, Zn, Mn, Pb, Ni and Cd were analyzed in the samples using atomic ab-sorption spectrophotometer. Air quality and noise levels were monitored using standard me-thods. Sulphur dioxide, oxides of nitrogen (NOx), total suspended particulate matter and noiseconcentrations ranged from 7-25ppm, 0.1-0.2ppm, 101-13,056ugm-3and 72.1-98.2dBrespec-tively,which were higher than USEPA standard. Heavy metals in soils were in the order of: MAR>IFK>AOK>IBE>ILA>TFG for Cu, AOK>MAR>IFK>TFG>ILA>IBE for Zn, IBE>IFK>MAR>AOK>TFG>ILA for Cd, IBE>AOK>MAR>TFG>IFK>ILA for Mn, IBE>AOK> TFG>MAR>ILA>IFK>IBE for Pband MAR>TFG>AOK>IBE>ILA>IFK for Ni. Health-related characteristics of the respondents also showed that 2.5% had allergies that hindered breathing, while 3.75% had difficulty in smelling. Health risk assessment showed that in-gestion is the major pathway of exposure to heavy metals in soil samples for both children andadults. Cd, Mn, Ni and Pb pose non-cancer risks to children, while only Cd and Mn pose non-cancer risks to adults. Ni and Pb pose the greatest cancer risk to children. In cassava leaves andtubers Pb was the only metal found to pose cancer risk in both children and adults.

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Heavy Metal Contamination of Soils along Roadsides in Port Harcourt Metropolis, Nigeria

Cited by 9 publications

References 0 publications

Characterization of pollutants in Florida street sweepings for management and reuse

Characterization of pollutants in Florida street sweepings for management and reuse

Assessment of Heavy Metal Concentrations in Pawpaw (Carica papaya Linn.) around Automobile Workshops in Port Harcourt Metropolis, Rivers State, Nigeria

Environmental and Health Impact of Cement Factory Production in Ibese, Ogun state, Nigeria

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