Heavy metal contamination of the Lami coastal environment, Fiji

Gangaiya, Philomena; Tabudravu, Jioji N.; South, Robin; Sotheeswaran, Subramaniam

doi:10.1071/sp01005

Cited by 39 publications

(28 citation statements)

References 9 publications

(8 reference statements)

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“…The battery recycling factory, which is located in the Wailada Industrial area (adjacent to Draunibota Bay) and another battery factory in the Walu Bay area are probably the main sources of Pb. This was also noted by other researchers (Naidu and Morrison 1994;Gangaiya et al 2001). The highest Pb concentration occurs at site 27, which also has elevated levels of the other four metals.…”

Section: Resultssupporting

confidence: 72%

Heavy metal pollution in Suva harbour sediments, Fiji

Maata

Singh²

2008

Environ Chem Lett

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In Fiji, contamination of the coastal environment by heavy metals is proving to be a real concern. This work reports for the first time analyses carried out on an extensive basis, to ascertain the extent of anthropogenic contamination by heavy metals in the \0.063 mm surface sediments of Suva harbour. Sediment samples from 40 sites selected within the harbour were collected and analysed for five heavy metals. The levels of the metals range from 21.4 to 143.0 ± 0.1 mg/kg Cu, 1.40 to 4.87 ± 0.07 wt.% Fe, 22.1 to 93.5 ± 0.3 mg/kg Pb, 40.2 to 269.0 ± 0.3 mg/kg Zn and 1.1 to 2.6 ± 0.2 mg/kg Sn. With reference to the pristine area of the Great Astrolabe, in Kadavu, the acquired data from the harbour are indicative of heavy metal pollution. This could be attributed to the numerous industrial and commercial activities at Wailada and Walu Bay industrial areas, the municipal dump located at the Suva foreshore and the Suva wharf. The pollution is further compounded by the high population density in Suva city.

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Section: Resultssupporting

confidence: 72%

Heavy metal pollution in Suva harbour sediments, Fiji

Maata

Singh²

2008

Environ Chem Lett

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“…Pollution of the natural environment by heavy metals is a worldwide problem because unlike many organic contaminants that lose toxicity with biodegradation, metals cannot be degraded further, and their toxic effects can be long lasting (Gangaiya et al 2001). Once heavy metals are accumulated by an aquatic organism, they can be transferred through the higher trophic levels of the food chain (Canli et al 1998).…”

mentioning

confidence: 99%

Assessment of Trace-Metal Concentrations in Western Reef Heron (Egretta gularis) and Siberian Gull (Larus heuglini) From Southern Iran

Mansouri

Pourkhabbaz

Babaei³

et al. 2012

Arch Environ Contam Toxicol

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The objective of the present study was to investigate the levels of heavy metals, namely, chromium, copper, cobalt, nickel, and iron, in Western Reef heron (Egretta gularis) (n = 15) and Siberian gull (Larus heuglini) (n = 15) to (1) compare metal concentrations between two bird species with different trophic level, molting pattern, and life strategy; (2) examine species- and sex-related variations in trace-metal accumulation; and (3) determine the significance between heavy-metal concentrations in kidney, liver, and pectoral muscle. Bird samples were collected from November to December 2010 throughout the Hara Biosphere Reserve, and heavy metals were assayed by using a Shimadzu AA 680 flame atomic absorption spectrophotometer; the results were given as μg/g dry weight. Metal concentrations were different between the bird species as well as among bird tissues, but there was no difference (except chromium and iron in kidney) between sex (male vs. female). Mean levels in kidney of Western Reef heron and Siberian gull were chromium (0.96, 2.32 μg/g), copper (6.31, 10.55 μg/g), cobalt (0.12, 0.14 μg/g), nickel (1.13, 1.32 μg/g), and iron (37.92, 39.64 μg/g), respectively, whereas in liver they were chromium (1.05, 2.75 μg/g), copper (8.93, 12.63 μg/g), cobalt (0.09, 0.17 μg/g), nickel (1.1, 2.27 μg/g), and iron (34.03, 44.21 μg/g), respectively. Results showed that heavy-metal concentrations in Western Reef heron were decreased in the sequence iron > copper > nickel > chromium > cobalt, whereas in Siberian gull they were decreased in the sequence iron > copper > chromium > nickel > cobalt. Results also showed that in both species, the highest chromium and nickel concentrations were measured in female birds and the lowest in male birds, whereas the highest copper, cobalt, and iron (except iron in liver) concentrations were measured in male birds and the lowest in female birds.

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“…After the flow velocity of the running water is reduced, particles suspended in the water end up in a much calmer environment where they can settle down. Thus, sediments are important sinks for various pollutants such as heavy metals (Ho et al 2003;Ikem et al 2003) and also play a very useful role in the assessment of heavy metal contamination (Gangaiya et al 2001). In general, high levels of contaminants have, as mentioned before, an anthropogenic origin, and their distribution and accumulation are influenced by sediment texture, mineralogical composition, reduction/oxidation state, adsorption and desorption processes, as well as their physical transport (Manahan 2000;Buccolieri et al 2006).…”

Section: Introductionmentioning

confidence: 99%

An evaluation of trace metal distribution and environmental risk in sediments from the Lake Kalimanci (FYR Macedonia)

et al. 2012

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Pollution from mining activities is a significant problem in several parts of the Republic of Macedonia. A geochemical study of the surficial sediments of Lake Kalimanci in the eastern part of the Republic of Macedonia was carried out to determine their elemental compositions and to evaluate the pollution status of lake sediments by employing an enrichment factor (EF). The major and trace element contamination in surficial lake sediments was studied to assess the effects of metalliferous mining activities. The mean concentrations of major elements (wt%) Si 23.5, Al 7.9, Fe 6.6, Mg 1.3, Ca 3.8, Na 1.1, K 2.3, Ti 0.4, P 0.2, Mn 0.6 and trace elements ranged within Mo 1.0-4.6 mg kg -1 , Cu 144.4-1,162 mg kg -1 , Pb 1,874-16,300 mg kg -1 , Zn 2,944-20,900 mg kg -1 , Ni 21.7-79.3 mg kg -1 , Cd 16.5-136 mg kg -1 , Sb 0.6-3.6 mg kg -1 , Bi 3.0-24,3 mg kg -1 and Ag 1.4-17.3 mg kg -1 . The EF ranged within 0.12-590.3. Among which, Cd, Pb, Zn and As have extremely severe enrichment. The data indicate that trace elements had extremely high concentrations in Lake Kalimanci surficial sediments owing to the anthropogenic addition of contaminants.

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Heavy metal contamination of the Lami coastal environment, Fiji

Cited by 39 publications

References 9 publications

Heavy metal pollution in Suva harbour sediments, Fiji

Heavy metal pollution in Suva harbour sediments, Fiji

Assessment of Trace-Metal Concentrations in Western Reef Heron (Egretta gularis) and Siberian Gull (Larus heuglini) From Southern Iran

An evaluation of trace metal distribution and environmental risk in sediments from the Lake Kalimanci (FYR Macedonia)

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