Heavy metal pollution recorded in Porites corals from Daya Bay, northern South China Sea

Chen, Tianran; Yu, Kefu; Li, Shu; Price, Gilbert J.; Shi, Quan; Wei, Gangjian

doi:10.1016/j.marenvres.2010.06.004

Cited by 80 publications

(33 citation statements)

References 43 publications

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“…Mn concentration of tree leaves in urban area was significantly higher than in rural area in Vienna, Austria [3]. Acute Mn contamination of Daya Bay corals occurred in the 1984-1989 in Daya Bay, northern South China Sea [4]. Mn exposure can cause damage to many tissues and organs.…”

Section: Introductionmentioning

confidence: 99%

Toxicological Effect of Manganese on NF-κB/iNOS-COX-2 Signaling Pathway in Chicken Testes

Zhu

Teng³

et al. 2015

Biol Trace Elem Res

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Manganese (Mn) pollution can cause tissue and organ dysfunction and structural damage. The toxicity of Mn in poultry was reported, but inflammatory damage that Mn induced in the testicular tissue has not been reported. The aim of this study was to investigate the effect of Mn poisoning on NF-κB/iNOS-COX-2 signaling pathway in chicken testes. One hundred eighty Hyline male chickens at 7 days of age were fed either commercial diet or MnCl2-added commercial diet containing 600, 900, and 1800 mg/kg Mn for 30, 60, and 90 days, respectively. The messenger RNA (mRNA) expression of nuclear factor-κB (NF-κB), tumor necrosis factor-α (TNF-α), cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS), nitric oxide (NO) content, iNOS activity, and histopathology were examined in chicken testes. The results showed that excess Mn upregulated mRNA expression of NF-κB, COX-2, TNF-α, and iNOS, NO content, and iNOS activity at 60th and 90th day. Mn had a time-dependent effect on NF-κB and TNF-α mRNA expression. Mn had a dose- and time-dependent effect on NO content and iNOS activity. Mn exposure induced chicken testis histological changes in dose- and time-dependent manner. It indicated that Mn exposure resulted in inflammatory injury of chicken testis tissue through NF-κB/iNOS-COX-2 signaling pathway.

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Section: Introductionmentioning

confidence: 99%

Toxicological Effect of Manganese on NF-κB/iNOS-COX-2 Signaling Pathway in Chicken Testes

Zhu

Teng³

et al. 2015

Biol Trace Elem Res

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“…Abundances of trace metals in corals have been explored to monitor environmental change and to reconstruct temporal and spatial patterns of contaminant input to the coral reef environment (e.g., Scott, 1990;Guzman and Jimenez, 1992;Bastidas and Garcia, 1999;Fallon et al, 2002;David, 2003;Runnalls and Coleman, 2003;Al-Rousan et al, 2007;Edinger et al, 2008;Prouty et al, 2008;Chen et al, 2010;Wang et al, 2011). Metals are incorporated into coral skeletons through substitution of dissolved metal species via Ca substitution, trapping of particulate matter within the skeletal matrix, and uptake of organic matter from either the coral tissue or directly from the water (see reviews by Howard and Brown, 1984;Hanna and Muir, 1990;Brown et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Environmental assessment of metal exposure to corals living in Castle Harbour, Bermuda

et al. 2013

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Environmental contamination in Castle Harbour, Bermuda, has been linked to the dissolution and leaching of contaminants from the adjacent marine landfill. This study expands the evidence for environmental impact of leachate from the landfill by quantitatively demonstrating elevated metal uptake over the last 30 years in corals growing in Castle Harbour. Coral Pb/Ca, Zn/Ca and Mn/Ca ratios and total Hg concentrations are elevated relative to an adjacent control site in John Smith's Bay. The temporal variability in the Castle Harbour coral records suggests that while the landfill has increased in size over the last 35 years, the dominant input of metals is through periodic leaching of contaminants from the municipal landfill and surrounding sediment. Elevated contaminants in the surrounding sediment suggest that resuspension is an important transport medium for transferring heavy metals to corals. Increased winds, particularly during the 1990s, were accompanied by higher coral metal composition at Castle Harbour. Coupled with wind-induced resuspension, interannual changes in sea level within the Harbour can lead to increased bioavailability of sediment-bound metals and subsequent coral metal assimilation. At John Smith's Bay, large scale convective mixing may be driving interannual metal variability in the coral record rather than impacts from land-based activities. Results from this study provide important insights into the coupling of natural variability and anthropogenic input of contaminants to the nearshore environment.Published by Elsevier B.V.

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“…Unsurunsur tersebut akan terperangkap dalam lapisan skeleton karang, dan akan ditutupi oleh lapisan selanjutnya (Al-rousan et al, 2007). Oleh karena itu karang jenis scleractinian dipercaya sebagai material yang dapat digunakan untuk merekonstruksi kejadian di masa lampau seperti iklim, nutrient bahkan pencemaran (Weber, 1973;Montagna, 2006;Chen et al, 2010;Chen et al, 2013;Cahyarini et al, 2014;Yoshioka et al, 2016). Pertumbuhan karang merupakan proses pengendapan kalsium dalam bentuk kalsium biogenik karbonat karang dan sangat dipengaruhi oleh suhu air laut (Weber, 1973).…”

Section: Pendahuluanunclassified

“…Pengendapan Sr dan Ca dalam biogenik karbonat karang sangat dipengaruhi oleh suhu air laut (Weber, 1973). Rasio stronsium dibanding kalsium (Sr/Ca) dalam karang inilah yang banyak digunakan sebagai alat (proxy) untuk merekonstruksi suhu permukaan laut pada masa lampau (Cahyarini et al, 2008;Cahyarini et al, 2009;Chen et al, 2010;Sayani et al, 2011).…”

Section: Pendahuluanunclassified

Evaluation of the Use of Faas for Sr/Ca Concentration Analysis of Porites From Ambon Bay and Jukung Island Coral

Ikhsani¹,

Dida

Cahyarini³

2017

J. Ilmu dan Teknologi Kelautan Tropis

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Keywords: FAAS, coral, ratio Sr/Ca ABSTRAKRasio konsentrasi Sr/Ca dalam karang sering digunakan sebagai paleo-termometer. Inductively Coupled Plasma (ICP) adalah instrumen yang sering digunakan untuk menganalisis konsentrasi Sr/Ca pada karang jenis Porites, karena sensitif dan hanya memerlukan sedikit sampel. Namun ketersediaan alat tersebut sangat terbatas. Spektrofotometer Serapan Atom nyala (SSA-nyala) juga merupakan alat yang paling umum digunakan untuk mengukur konsentrasi berbagai unsur termasuk Sr dan Ca. Tujuan dari penelitian ini adalah mengevaluasi hasil metode analisis konsentrasi unsur stronsium (Sr) dan kalsium (Ca) pada karang dengan SSA-nyala serta membandingkan hasil pengukuran konsentrasi Sr/Ca antara SSA-nyala dan ICP. Dalam studi ini digunakan sample karang Porites dari perairan Teluk Ambon dan Pulau Jukung. Konsentrasi stronsium dan kalsium dalam karang tersebut dianalisis dengan spektrofotometer serapan atom nyala (SSA-nyala). Hasilnya menunjukkan rata-rata konsentrasi Sr/Ca dalam karang dari Teluk Ambon dan Pulau Jukung sebesar 8,71 dan 7,708 mmol/mol, dengan variasi bulanan konsentrasi Sr/Ca sebesar 6,28 -10,24 mmol/mol untuk karang dari Teluk Ambon dan 1,005 -10,914 mmol/mol untuk karang dari Pulau Jukung. Sampel karang dari Teluk Ambon maupun Pulau Jukung hasil analisis SSA-nyala memiliki rentang variasi konsentrasi bulanan Sr/Ca yang sangat lebar dibanding hasil ICP, yaitu sebesar 8,462 -8,807 dan 8,45 -8,72 mmol/mol. Hal ini diduga karena terjadinya ionisasi sebagian Sr maupun Ca dalam nyala SSA.

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Heavy metal pollution recorded in Porites corals from Daya Bay, northern South China Sea

Cited by 80 publications

References 43 publications

Toxicological Effect of Manganese on NF-κB/iNOS-COX-2 Signaling Pathway in Chicken Testes

Toxicological Effect of Manganese on NF-κB/iNOS-COX-2 Signaling Pathway in Chicken Testes

Environmental assessment of metal exposure to corals living in Castle Harbour, Bermuda

Evaluation of the Use of Faas for Sr/Ca Concentration Analysis of Porites From Ambon Bay and Jukung Island Coral

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