Ecological implications of trace metals in seaweeds: Bio-indication potential for metal contamination in Wandoor, South Andaman Island

Karthick, P.; Sankar, R.; Kaviarasan, Thanamegam; Mohanraju, R.

doi:10.1016/j.ejar.2013.01.006

Cited by 28 publications

(8 citation statements)

References 16 publications

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“…Compared to the present study higher levels of Cu and lower level of Fe was reported in marine sponge Haliclona tenuiramosa; seaweed Cladophora glomerata [15] and Amphiroa fragilissima seaweed reported high Cu and Zn concentrations [16]. Karthick and his co-workers [17] have reported higher concentration of manganese than P, Zn and Cu in the seaweeds. The high Fe levels in all the species and sites studied reveals the role of iron for normal growth of seagrass and biomagnifications or accumulation of iron from the surrounding environment and contamination from industrial and other operations.…”

Section: Resultscontrasting

confidence: 58%

Integrated Environmental Risk Assessment Using Biomarkers in Marine Plants of the Gulf of Mannar, India

Nagarani

Anand

2014

APCBEE Procedia

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The purpose of this study was to explore a possible relationship between inorganic metals and oxidative stress in marine plants of south east coast of India. The investigation was carried out during the low tides in Pudumadam, Mandapam, Pamban and Keelakarai coastal areas. The distribution of elements such as phosphorus, nitrogen, lead (Pb), manganese (Mn), iron (Fe), copper (Cu), and zinc (Zn) were determined in the marine plants and its surrounding seawater. An atomic absorption spectrometer, Varian Model SPECTRAA was used to determine the level of heavy metals. The impact of metals on the metabolism of the plants was determined by the level of antioxidant response. Low levels of Mn, Cu were observed in Pudumadam species. The thiobarbutric acid reactive substances formation in the marine plants showed a positive correlation with the trace element selected sites, which indicates the contamination of sewage and industrial pollution in these waters.

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Section: Resultscontrasting

confidence: 58%

Integrated Environmental Risk Assessment Using Biomarkers in Marine Plants of the Gulf of Mannar, India

Nagarani

Anand

2014

APCBEE Procedia

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“…In this regard, in order to protect the consumer, regular surveys of toxic metals in seaweeds and estimation of health risk need to be considered. Considering that consumption of food is the major source of heavy metals exposure/bio-accumulation in the body, this study has sought to assess the levels in seaweed of the metals 19 K, 20 Ca, 12 Mg, 82 Pb, 48 Cd, 34 Se, 13 Al, 25 Mn, 29 Cu, 30 Zn, 26 Fe, 33 As, 11 Na, 28 Ni, 24 Cr, 47 Ag, and 14 Si, with use being made of inductively coupled plasma optical emission spectrometry (ICP-OES). An additional aim was to estimate the carcinogenic and noncarcinogenic risks of metals exposures to the Malaysian population/consumers.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, Pan et al [ 19 ] observed the high bioaccumulation capability of specific heavy metals (Cu, Cr, Ni, Zn, Pb, Cd, and As) by seaweed collected from the Dongtou Islands of the East China Sea. Karthick et al [ 20 ] reported typical concentrations of Mn, Pb, Zn, Cd, Cu, and Cr in six types of South Andaman Island seaweed, an island situated in the Bay of Bengal. Dadolahi-Sohrab et al [ 21 ] reported the presence of the metals Pb, Cd, Cu, Ni, Zn, and Fe in 11 dominant seaweed species from the Strait of Hormuz, with concentrations greater than that from other different regions of the world.…”

Section: Introductionmentioning

confidence: 99%

Elevated Concentrations of Metal(loids) in Seaweed and the Concomitant Exposure to Humans

Khandaker

Chijioke

Heffny

et al. 2021

Foods

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While the consumption of seaweed and seaweed-based products is very common amongst East Asian nations, forming a notable component of the daily diet, relatively very few studies have concerned the concentrations of heavy metals in these together with potential effects on human health. The present study analyses the concentrations of 17 elements in locally resourced seaweed, also assessing potential noncarcinogenic and carcinogenic risks. The samples were ground, homogenized, and quantified using the ICP-OES technique. It has been found that the essential elements K, Ca, Mg, Zn, and Na typically show concentrations somewhat greater than a number of potentially toxic metals, in particular, Cd, Pb, Ag, and As, with exceptions being Ni, Cr-VI, and Si. Statistical analysis indicates all of the latter to have similar origin, with increased concentration of these metals within the marine ecosystem. While the daily estimated intake of most metals is seen to be within the daily dietary allowance level recommended by various international organizations, the noncarcinogenic risk shows a value greater than unity, estimated via the hazard quotient. This indicates a potential for adverse effects to health arising from consumption of the sampled seaweed. The carcinogenic risk resulting from nonessential elements shows values greater than the United States Environmental Protection Agency (US-EPA) reference limit of 10−4. Considering the nonbiodegradability of heavy metals and metalloids and their potential accumulation in seaweed, there is need for critical examination of metal levels in the seaweeds obtained from the present study locations, together with the introduction of practices of removal of heavy metals via bio-adsorbent techniques.

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“…Although Cr, Cd, and Zn are known as essential elements to plants, higher concentrations of these heavy metals can be toxic (Karthick et al 2012). The accumulation of Pb, Cd, and Cr in plants of Al-Hawizeh Marsh may have been from the discharge of sewage from houses and treatment units in the Maysan province.…”

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confidence: 99%

Assessment of some heavy metals in various aquatic plants of Al-Hawizeh Marsh, southern of Iraq

Al-Abbawy

Al-Thahaibawi²,

Al-Mayaly

et al. 2020

Biodiversitas

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Abstract. Al-Abbawy DAH, Al-Thahaibawi BMH, Al-Mayaly IKA, Younis KH. 2021. Assessment of some heavy metals in various aquatic plants of Al-Hawizeh Marsh, southern of Iraq. Biodiversitas 22: 338-345. In order to describe the degree of contamination of aquatic environments in Iraq, heavy metals analysis (Fe, Ni, Cr, Cd, Pb, and Zn) was conducted for six aquatic macrophytes from different locations of Al-Hawizeh Marsh in southern Iraq. The six species were Azolla filiculoides (floating plant), Ceratophyllum demersum, Potamogeton pectinatus, Najas marina (submerged plants), Phragmites australis, and Typha domingensis (emergent plants). The results indicate that cadmium, chromium, and iron concentrations in aquatic plants were above the World Health Organization (WHO). In contrast, zinc, copper, and lead were within the allowable limits. C. demersum and N. marina showed higher concentrations of heavy metal accumulation than the other aquatic plants. The concentration of heavy metals in plant tissues during the summer months was higher than in the different seasons. C. demersum and N. marina showed higher concentrations of heavy metal accumulation than the other aquatic plants. Heavy metal bioconcentration (BCF) was calculated to assess heavy metals bioaccumulation in the aquatic plants.

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Ecological implications of trace metals in seaweeds: Bio-indication potential for metal contamination in Wandoor, South Andaman Island

Cited by 28 publications

References 16 publications

Integrated Environmental Risk Assessment Using Biomarkers in Marine Plants of the Gulf of Mannar, India

Integrated Environmental Risk Assessment Using Biomarkers in Marine Plants of the Gulf of Mannar, India

Elevated Concentrations of Metal(loids) in Seaweed and the Concomitant Exposure to Humans

Assessment of some heavy metals in various aquatic plants of Al-Hawizeh Marsh, southern of Iraq

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