A Comparative Study of Heavy Metal Accumulation in Tissues of the Crested Tern, Sterna bergii, Breeding Near Industrialized and Non-Industrialized Areas

1981 ◽  
Vol 8 (3) ◽  
pp. 665 ◽  
Author(s):  
DM Howarth ◽  
AJ Hulbert ◽  
D Horning
Keyword(s):  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Heavy Metal Accumulation ◽  
Cadmium Content ◽  
Salt Glands ◽  
Manganese Zinc ◽  
Copper Manganese ◽  
Cadmium Lead ◽  
The Individual

Tissues taken from crested terns were analysed for cadmium, lead, copper, chromium, manganese, zinc and iron. The birds were taken from a breeding colony in a non-industrialized region (North Solitary I., NNE. of Coffs Harbour, N.S.W.) and from one near an industrialized region (Big I., Port Kembla, N.S.W.). The birds from the industrialized region did not show any consistent evidence of significant heavy metal contamination when compared to those of the non-industrialized region. The individual tissues were also compared to assess the distribution of the various metals, and the relative degree to which each tissue accumulates the metals. Some accumulation of chromium, copper, manganese, lead and, to a lesser degree, cadmium and zinc was found in the salt glands. The kidneys had a relatively large cadmium content.

scholarly journals Heavy metal levels in cattle egrets (Bubulcus ibis) foraging in some abattoirs in Lagos State metropolis

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Elijah Abakpa Adegbe ◽  
Oluwaseyi Oluwabukola Babajide ◽  
Lois Riyo Maina ◽  
Shola Elijah Adeniji
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Heavy Metal Accumulation ◽  
Bubulcus Ibis ◽  
Significant Difference ◽  
Metal Levels ◽  
Lagos State ◽  
The Mean

Abstract Background Heavy metal accumulation in the ecosystem constitutes a potential toxic effect which is hazardous to human health. Increasing environmental pollution has necessitated the use of cattle egrets to evaluate the levels of heavy metal contamination, to establish their use in biomonitoring of heavy metals and to provide data for monitoring pollution in the environment. Results The present study assessed the utilization of Bubulcus ibis in monitoring pollution in five abattoirs, namely Agege, Bariga, Kara, Itire and Idi-Araba, all situated in Lagos State. The concentration of five (5) heavy metals, cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) was determined in the liver, muscle and feather of Bubulcus ibis using the atomic absorption spectrophotometer. The trend of metal accumulation was in the order: Zn > Cu > Pb > Cd > Ni for all the sampled tissues. The mean tissue concentrations of the metals were significantly different (p < 0.05) among the sites. The highest levels of metal concentration were reported in the liver in all the locations. Mean concentration of Cd in Kara (0.003 ± 0.00058) was significantly (p < 0.05) higher than those found at Agege (0.0013 ± 0.00058) and Idi-Araba (0.001 ± 0.001). A significant difference (p < 0.05) was also observed between the mean concentrations of Cu in Bariga (0.01 ± 0.001) and Idi-Araba (0.003 ± 0.001). Conclusion All the studied heavy metals were present in the liver, muscle and feathers of the cattle egrets. The contamination levels were ascertained from the study which indicated that cattle egrets are useful in biomonitoring studies and the generated data will serve as baseline data which could be compared with data from other locations for monitoring heavy metal pollution.

scholarly journals Effects and Mechanisms of Microbial Remediation of Heavy Metals in Soil: A Critical Review

2018 ◽  
Vol 8 (8) ◽  
pp. 1336 ◽  
Author(s):  
Yuyao Jin ◽  
Yaning Luan ◽  
Yangcui Ning ◽  
Lingyan Wang
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Heavy Metal Accumulation ◽  
Future Research ◽  
Ecological Benefits ◽  
Factors Influencing ◽  
Primary Mechanism ◽  
Microbial Remediation

The use of microbes to change the concentration of heavy metals in soil and improve the ability of plants to deal with elevated metals concentrations has significant economic and ecological benefits. This paper reviews the origins and toxic effects of heavy metal pollution in soil, and describes the heavy metal accumulation mechanisms of microbes, and compares their different bioconcentration abilities. Biosorption, which depends on the special structure of the cell wall, is found to be the primary mechanism. Furthermore, Escherichia coli are found to adsorb more heavy metals than other species. Factors influencing microbial treatment of wastewater and soil containing heavy metals include temperature, pH, and different substrates. Finally, problems in the application of microbial treatment of heavy metal contamination are considered, and possible directions for future research are discussed.

scholarly journals Long-Term Impact of Wastewater Irrigation on Soil Pollution and Degradation: A Case Study from Egypt

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2245
Author(s):  
Manal A. Alnaimy ◽  
Sahar A. Shahin ◽  
Zuzana Vranayova ◽  
Martina Zelenakova ◽  
Enas Mohamed Wagdi Abdel-Hamed
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Continuous Cultivation ◽  
Heavy Metal Accumulation ◽  
Wastewater Irrigation ◽  
Metal Levels ◽  
The Impact

There is consensus on the impact of wastewater irrigation on soil properties and heavy metal accumulation. The studies that show the impact of temporal changes as a result of different long-term additions of wastewater on the heavy metal accumulation and degradation of soil are extremely limited. This study was carried out to assess heavy metal contamination in soils irrigated with wastewater for more than 30 years in Egypt. A total number of 12 irrigation water samples and 12 soil profiles were collected during 2020 and were chemically characterized. The results showed that soils irrigated with wastewater over the long term contained significantly higher concentrations of heavy metals compared to fields irrigated with fresh water. Heavy metal levels in water and soil samples were within the permissible limits, with the exception of Cd concentration in water (0.03 mg L−1). Continuous cultivation for a long period of time (30 years) using raw urban wastewater application has led to the adverse effect of increasingly available Pb concentration (5.44 mg kg−1). Similar temporal behavior was seen for Cd and Fe, which increased by 0.98 and 11.2 mg kg−1, respectively, after 30 years. The heavy metals in wastewater-irrigated soils significantly increased in clayey soils, as compared to sandy soils irrigated from the same source. Our findings provide important information for decision makers in Egypt and similar countries for the development of a strategy for the use of wastewater in irrigation for sustainable agricultural management.

A Comparative Study of Heavy Metal Accumulation in Tissues of the Crested Tern, Sterna Bergii. Breeding Near an Industrial Port Before and After Harbour Dredging and Ocean Dumping.

1982 ◽  
Vol 9 (3) ◽  
pp. 571 ◽  
Author(s):  
DM Howarth ◽  
TR Grant ◽  
AJ Hulbert
Keyword(s):  
Trophic Structure ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Conclusive Evidence ◽  
Manganese Zinc ◽  
Low Concentrations ◽  
Structure Of Communities ◽  
Before And After ◽  
Cadmium Lead ◽  
Ocean Dumping

Eight different tissues taken from crested terns, Sterna bergii, were analysed for the metals cadmium, lead, copper, chromium, manganese, zinc and iron. Birds were taken from a breeding colony before and after the commencement of harbour dredging and ocean dumping operations in nearby Port Kembla Harbour. Levels of chromium and lead were similar in both adult and fledgling terns after dredging began, indicating that chicks acquired these metals from food brought to them by adult birds. However, these metals were found in relatively low concentrations. No conclusive evidence was found of increased assimilation of heavy metals into the trophic structure of communities in waters adjacent to the Five Islands after dredging and ocean dumping operations.

scholarly journals Pollution Load Index (PLI) of field irrigated with wastewater of Mawaiya Drain in Naini suburbs of Allahabad District

2018 ◽  
Vol 13 (1) ◽  
pp. 159-164
Author(s):  
Arti Yadav ◽  
Pawan Kumar Yadav
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Heavy Metal Accumulation ◽  
Pollution Load ◽  
Maximum Accumulation

Wastewater irrigation is practiced in outskirts of several cities of India. Enhanced growth and productivity of crops possess threat of heavy metal accumulation while irrigated with wastewater. Assessment of heavy metal accumulation in soil flooded with wastewater of Mawaiya drain in Naini region of Allahabad district, using parameter of contamination factor and pollution load index (PLI). Samples of soil were taken from the fields irrigated with wastewater and analyzed for heavy metals by using Atomic Absorption Spectroscopy (AAS). The maximum accumulation of heavy metal was observed for iron in soil. Heavy metal contamination is soil was assessed by estimation of contamination factor which was observed for Cu (0.7858), Fe (296.1864), Zn (0.4304), Pb (1.1661) and Ni (1.8912). Pollution load index (PLI) used for assessment of soil contamination and observed that maximum contamination (PLI, 74.31) was in water stressed conditions of summer. Heavy metals concentration in wastewater and accumulation in soil found within WHO limits in present study which may increase if unmanaged wastewater flooding continued.

scholarly journals Heavy Metal Accumulation as Phytoremediation Potential of Aquatic Macrophyte, Monochoria vaginalis (Burm.F.) K. Presl Ex Kunth

2015 ◽  
Vol 3 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Tulika Talukdar ◽  
Dibyendu Talukdar
Keyword(s):  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Aquatic Macrophyte ◽  
Heavy Metal Accumulation ◽  
Transfer Factors ◽  
Accumulation Pattern ◽  
Plant Organs ◽  
Edible Parts ◽  
Soil Metal

Bioaccumulation potential of six ecotypes, collected from six different industrial zones of lower Indo-Gangetic basin of West Bengal, India,of Monochoria vaginalis, commonly known as oval-leafed pondweed has been investigated based on chromium (Cr), cadmium (Cd) andCopper (Cu) accumulation pattern in different plant organs. Bioaccumulation potential was assessed by bioaccumulation factors (BFs-leavesmetal concentration/soil metal concentration), bioconcentration factors (BCFs- roots metal/soil metal), transfer factors (TFs-leaves +rhizomes/roots) and enrichment factors (EFs-metals in edible parts/soil metal). Accumulation pattern significantly differed among ecotypes,and accumulation in plant organs was highly metal-specific. BFs for Cr and Cd were >>1 in most of the ecotypes while high TFs (>>1) werenoticed in six ecotypes for Cr and Cu. BCFs was >>1 in all the ecotypes for Cd accumulation only. EFs values for the three metals hoveredaround 1 but it was > 1.0 for Cu in all the six ecotypes. The results suggested that Cr and Cu predominantly accumulated in leaves and rhizomeswhile Cd was predominantly sequestered in roots of M. vaginalis ecotypes. Cu, a redox active metal, showed higher capability than Cd and Crto accumulate in edible parts. In the present study, potential plant parts in M. vaginalis have been identified as bioaccumulation organs withoutany apparent symptoms of toxicity which can be used as phytoremediation of heavy metal contamination in aquatic ecosystems of lower Indo-Gangetic basin of India.DOI: http://dx.doi.org/10.3126/ijasbt.v3i1.12193 Int J Appl Sci Biotechnol, Vol. 3(1): 9-15        

scholarly journals The Environmental Assessment of the Intensity of Heavy Metal Accumulation in Anthropogenically Transformed Soils

2016 ◽  
Vol 5 (1) ◽  
pp. 23-26
Author(s):  
Lidia P. Stepanova ◽  
Elena V. Yakovleva ◽  
A.V. Pisarev
Keyword(s):  
Heavy Metal ◽  
Metal Contamination ◽  
Urban Soils ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Total Content ◽  
Heavy Metal Accumulation ◽  
Environmental Issue ◽  
Laboratory Studies ◽  
Degree Of Degradation

Abstract The protection of urban soils and soils located near arterial highways from heavy metal contamination is an environmental issue which has not been resolved in megalopoleis. Purposeful scientific experimental data obtained on the basis of field and laboratory studies is required in order to solve these problems, which has determined the choice of the research objective: to assess the degree of degradation changes in anthropogenically transformed soils in Moscow and Orel regions in terms of total content of heavy metals and their degree of mobility.

DYNAMIC COMPARTMENT MODELING OF HEAVY METAL ACCUMULATION IN MOSSES

2016 ◽  
Author(s):  
Devan Fitzpatrick ◽  
◽  
Alyssa E. Shiel ◽  
Bruce McCune
Keyword(s):  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Compartment Modeling
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