Heavy Metal (Lead, Cadmium and Copper) accumulation capacity of the brackish water clam, Meretrix casta inhabiting selected estuaries in Sri Lanka

Large quantities of wastewater from industries and households were released to Wonorejo river in Surabaya East Coast area. The concentration of Cu at the Wonorejo Estuary reached 3.186 mg/L at brackish water in 2009 One of the inorganic pollutants that can be removed by mangrove is copper (Cu). The purpose of this research was to determine the potency of Cu accumulation by Avicennia marina that was grown for ten years at Wonorejo Estuary. The sampling activities were conducted using a transect quadrat sampling method with a 10x10 m dimension. There were ten points of location sampling, the sediment and root of A. marina samples were collected in those location sampling. All samples of sediment and root were extracted before those samples were analyzed using an atomic absorption spectrophotometer (AAS). The calculation of the Bioconcentration Factor (BCF) was conducted using a equation formulation. The results showed that concentration Cu in sediment was 27 mg/kg until to 150 mg/kg. The Cu accumulation by roots of A. marina reached 53 mg/kg until to 128 mg/kg. The BCF value in A. marina were 0.91 to 3.22 In conclusion, A. marina showed potential as a hyperaccumulator for Cu.

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Spatial distribution of heavy metals in surface sediments of Kalametiya Lagoon in southern Sri Lanka; insight towards pollution status and socio-economic interactions

10.21203/rs.3.rs-936004/v1 ◽

2021 ◽

Author(s):

Sunanda Kodikara ◽

Hossein Tiemoory ◽

Mangala Chathura De Silva ◽

Pathmasiri Ranasinghe ◽

Sudarshana Somasiri ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Spatial Distribution ◽

Sri Lanka ◽

Suspended Sediments ◽

Potential Effect ◽

Toxic Heavy Metals ◽

Threshold Effect Level ◽

Effect Level ◽

Economic Interactions

Abstract Heavy metal (HM) pollution has become a serious threat to coastal aquatic ecosystems. This study, therefore, aimed at assessing the spatial distribution of selected heavy metals/metalloids including Arsenic (As), Cadmium (Cd), Chromium (Cr), Lead (Pb), and Mercury (Hg) in surface sediment (0–15 cm) samples collected across Kalametiya Lagoon in southern Sri Lanka. Forty-one (41) grid points of the lagoon were sampled and the sediment samples were analyzed for HM content by using ICP-MS. A questionnaire survey was carried out to investigate the possible sources for HM pollution in Kalametiya Lagoon. Water pH and salinity showed significant variation across the lagoon. Overall mean value of pH and salinity were 6.68 ± 0.17 and 2.9 ± 2.2 PSU respectively. The spatial distribution of the heavy metals was not monotonic and showed a highly spatial variation. The kernel density maps of the measured heavy metals demarcated several different areas of the lagoon. The mean contents of As, Cd, Cr, Hg, and Pb were lower than that of threshold effect level (TEL) however, higher for Hg at the North Inlet. Nevertheless, it was still lower than potential effect level (PEL). Socio-economic interactions have dramatically reduced during the past two decades. Industrial sewage, river suspended sediments and agrochemicals such as fertilizers, pesticides were reportedly identified as the possible sources for heavy metal loads. Accumulation of toxic heavy metals can be minimized by detouring the water inflow to the lagoon.

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Comparison of heavy metal accumulation capacity of some indigenous mosses in Southwest China cities: a case study in Chengdu city

Plant Soil and Environment ◽

10.17221/160/2009-pse ◽

2010 ◽

Vol 56 (No. 2) ◽

pp. 60-66 ◽

Cited By ~ 16

Author(s):

Y.E. Chen ◽

S. Yuan ◽

Y.Q. Su ◽

L. Wang

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Inductively Coupled Plasma ◽

Atomic Emission ◽

Atomic Absorption Spectrophotometry ◽

Heavy Metal Accumulation ◽

Emission Spectrometry ◽

Plasma Atomic Emission Spectrometry ◽

Accumulation Capacity ◽

The Difference

In order to evaluate the accumulation capacity of heavy metals in mosses, the total contents of eight elements (Cu, Zn, Fe, Mn, Ni, Pb, Cd, Cr) determined by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) and Atomic Absorption Spectrophotometry (AAS) methods were compared in four types of indigenous mosses (<i>Brachythecium plumosum, Eurhynchium laxirete, Taxiphyllum taxirameum, Haplocladium strictulum</i>), which were collected from different sampling sites in the Chengdu city, China. The study found that heavy metal concentrations showed significant differences in interspecies and intraspecies comparison, while the accumulation capacity of <i>T. taxirameum</i> was higher than others. ANOVA analysis indicated that the atmospheric pollution of heavy metals in Wangjiang Park was relatively more serious than that of Ta Zishan Park and Cultural Park. The data also showed that the concentrations of heavy metals in the Chengdu city were higher compared to some foreign cities. The results are coincident with the previous conclusions that the difference of heavy metal depositions in mosses was not only related to environment, but also to their biological features.

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Heavy metal pollution of the mid-canal of Kandy: an environmental case study from Sri Lanka

Environmental Research ◽

10.1016/s0013-9351(87)80004-x ◽

1987 ◽

Vol 42 (1) ◽

pp. 24-35 ◽

Cited By ~ 11

Author(s):

C.B. Dissanayake ◽

J.M. Niwas ◽

S.V.R. Weerasooriya

Keyword(s):

Heavy Metal ◽

Sri Lanka ◽

Metal Pollution ◽

Heavy Metal Pollution

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A heavy metal P-type ATPase OsHMA4 prevents copper accumulation in rice grain

Nature Communications ◽

10.1038/ncomms12138 ◽

2016 ◽

Vol 7 (1) ◽

Cited By ~ 55

Author(s):

Xin-Yuan Huang ◽

Fenglin Deng ◽

Naoki Yamaji ◽

Shannon R.M. Pinson ◽

Miho Fujii-Kashino ◽

...

Keyword(s):

Heavy Metal ◽

Copper Accumulation ◽

Rice Grain ◽

P Type

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Element Content (Cu, Fe, Mn, Ni, Pb, and Zn) of the Ruderal Plant Verbascum olympicum Boiss. from East Mediterranean

Zeitschrift für Naturforschung C ◽

10.1515/znc-2006-5-610 ◽

2006 ◽

Vol 61 (5-6) ◽

pp. 357-362 ◽

Cited By ~ 8

Author(s):

Gürcan Güleryüz ◽

Hülya Arslan ◽

Belgin İzgi ◽

Şeref Güçer

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Atomic Absorption ◽

Metal Content ◽

Element Content ◽

East Mediterranean ◽

Metal Contents ◽

Accumulation Capacity ◽

Highly Correlated ◽

Ruderal Plant

In this study, heavy metal content (Cu, Fe, Mn, Ni, Pb, Zn) was determined in soils and different organs of Verbascum olympicum Boiss. This species is endemic to Uludağ and spreads on destroyed areas such as: roadsides, developed building areas, ski lift stations and sheep folds. Soils and different organs (roots, stems, leaves and flowers) of plant samples were analyzed using an atomic absorption spectrophotometer for determining the element content. Heavy metal contents in soils and different organs in this species were highly correlated (P < 0.05). However, the contribution of plant organs to the accumulation capacity varied according to the metal. These results suggest that this species may be useful as a bioindicator for heavy metals.

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