Limitations of metallothioneins in common cockles (Cerastoderma edule) and sponges (Haliclona oculata) as biomarkers of metal contamination in a semi-enclosed coastal area

This study was aimed to assess the severity of heavy metal contamination in eastern coastal area of Pakistan. Agriculture lands near district Badin coastal area found contaminated due to mega surface canal drain network, carrying untreated industrial and municipal effluents along with pumped saline water. Thirty-two random soil samples were collected from different coastal areas. Arc Geographic Information System was used for spatial mapping. Soil samples from coastal areas of Badin contain average concentrations of heavy metals (mg/kg) as Hg 0.247±0.207, Ni 2.622±1.107,Zn 3.121±0.929, Cu 0.059±0.066, Fe 70.447±1.163, Mn7.062±1.251, Co 0.0167±0.033,Cr0.799±0.718.

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Effects of metal contamination on the gene expression profile of two benthic species: Cerastoderma edule and Ruditapes philippinarum

Marine Pollution Bulletin ◽

10.1016/j.marpolbul.2017.08.014 ◽

2017 ◽

Vol 125 (1-2) ◽

pp. 157-165 ◽

Cited By ~ 4

Author(s):

Raquel Rodrigues ◽

Joana Lourenço ◽

Patrícia Pereira ◽

Susana Carvalho ◽

Sonia Mendo

Keyword(s):

Gene Expression ◽

Gene Expression Profile ◽

Expression Profile ◽

Metal Contamination ◽

Ruditapes Philippinarum ◽

Benthic Species ◽

Cerastoderma Edule

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Trace metal contamination in commercial fish and crustaceans collected from coastal area of Bangladesh and health risk assessment

Environmental Science and Pollution Research ◽

10.1007/s11356-016-6918-4 ◽

2016 ◽

Vol 23 (17) ◽

pp. 17298-17310 ◽

Cited By ~ 42

Author(s):

Mohammad Raknuzzaman ◽

Md Kawser Ahmed ◽

Md Saiful Islam ◽

Md Habibullah-Al-Mamun ◽

Masahiro Tokumura ◽

...

Keyword(s):

Risk Assessment ◽

Health Risk ◽

Trace Metal ◽

Health Risk Assessment ◽

Coastal Area ◽

Metal Contamination ◽

Commercial Fish ◽

Trace Metal Contamination

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Chromium, Cadmium, Lead, and Arsenic Concentrations in Water, Vegetables, and Seafood Consumed in a Coastal Area in Northern Vietnam

Environmental Health Insights ◽

10.1177/1178630220921410 ◽

2020 ◽

Vol 14 ◽

pp. 117863022092141

Author(s):

Nguyen Thi Minh Ngoc ◽

Nguyen Van Chuyen ◽

Nguyen Thi Thu Thao ◽

Nguyen Quang Duc ◽

Nguyen Thi Thu Trang ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Coastal Area ◽

Metal Contamination ◽

Heavy Metal Contamination ◽

Local Population ◽

Absorption Spectrometry ◽

Leafy Vegetables ◽

World Health ◽

Sample Collection

Background: Heavy metal contamination and related risks for the environment and human health are matters of increasing concern. Methods: The levels of 4 heavy metals (Cr, Cd, Pb, and As) were evaluated in 2 water types (surface and well), 4 types of seafood (tiger shrimp, stuffed snail, snake-head fish, and catfish), and 27 types of vegetables (12 leafy vegetables, 4 pea plants, 4 tuber vegetables, and 7 herbs) that are commonly consumed in northern coastal communes located in Vietnam. Atomic absorption spectrometry was employed for quantification. Results: The mean concentrations of heavy metals detected in water, seafood, and vegetable samples exceeded the national permitted standards and World Health Organization (WHO) recommendation values by at least 2-fold, 2.5-fold, and 5-fold for surface water, vegetables, and well water, respectively. The concentrations of all 4 heavy metals detected in seafood samples were higher than the standards. The levels of heavy metals decreased with increasing distance between the sample collection point and the pollution source. Conclusions: This is the first report of heavy metal contamination of common sources of food and water in the northern coastal area of Vietnam. Significantly, the concentrations of heavy metals detected in study samples exceeded the regulatory limits. These results underscore the importance of continued monitoring and the development of intervention measures to ensure that the quality of food and water meets established standards and protects the health of the local population.

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