Concentrations and health risks of heavy metals in five major marketed marine bivalves from three coastal cities in Guangxi, China

Lu-yan, Qin; Zhang, Rong-cang; Liang, Yaxuan; Wu, Lian; Mu, Zhen-lin; Deng, Ping; Yang, Lingling; Zhou, Zhou; Yu, Zheng-ping

doi:10.1016/j.ecoenv.2021.112562

Cited by 32 publications

(10 citation statements)

References 74 publications

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“…According to a study concerning the health risks of heavy metals on five chief marketed marine bivalves, sampled from three coastal cities in Guangxi province (Qinzhou, Fangchenggang, and Beihai), a southern-most coastal area of China, the Cd concentrations in eatable muscle of most bivalve samples were below the national and global safety limits. Nevertheless, even if the existing build-up levels of bivalves are generally safe, it is still possible that sustained and lifetime ingestion (e.g., beyond 70 years) becomes sufficient in posing adverse health effects [ 52 ]. Moreso, shrimp and crab are assumed to be capable of absorbing Cd in aquatic waters through respiratory and digestive systems and the external body without substantial excretion [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

Probabilistic Risk Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China—Young Children Potentially at a Health Risk

Mhungu

Chen

Wang

et al. 2022

IJERPH

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Cadmium (Cd) and its compounds are hazardous environmental pollutants with renal toxicity and human carcinogenicity, with ingestion of contaminated foods representing the major mode of exposure. There have been a number of reports evaluating the Cd content in various foods; however, regarding the actual risk posed by dietary cadmium exposure, only a few reports are available in which single point evaluation (less accurate than multiple point evaluation) was employed. In this study, we used a margin of exposure (MOE) model and @RISK software (for multiple evaluation) to evaluate Cd-related health risk in the local Guangzhou residents at varying ages, through a comparison between the estimated monthly exposures and the provisional tolerable monthly intake (0.025 mg/kg body weight (b.w.)), based on the Cd contents in various food categories available locally (a total of 3964 food samples were collected from each of the 13 districts of Guangzhou between 2015 and 2019), which were determined by using inductively coupled plasma mass spectrometry. In this study, Cd was detected in 69.6% of the samples (averaged 0.120 mg/kg), and rice and its products, leafy vegetables, bivalves, and shrimp and crabs contributed most to Cd exposure (8.63, 3.18, 2.79, and 1.48 ng/kg b.w./day, respectively). The MOE values demonstrated the following tendency: the younger age group, the lower MOE, and its 95% confidence range for the (youngest) 3~6 year old group started from 0.92, indicating a health risk of young children, while that for the other age groups were all above 1.0. Our preliminary findings warrant further clarification using biomarker assays in the relevant population.

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Section: Resultsmentioning

confidence: 99%

Probabilistic Risk Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China—Young Children Potentially at a Health Risk

Mhungu

Chen

Wang

et al. 2022

IJERPH

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“…A recent study performed in bivalves marketed in coastal cities of China showed that, due to their water filtering capacity, the mean concentration of HMs in bivalve tissues decreased in the following order Zn (5.29–35.74, mean: 12.37 ± 5.58 mg/kg) > Cu (0.74–4.93, mean: 1.72 ± 0.72 mg/kg) > As (0.61–3.95, mean: 1.50 ± 0.81 mg/kg) > Cd (0.02–0.35, mean: 0.12 ± 0.07 mg/kg.) > Cr (0.06–1.09, mean: 0.30 ± 0.15 mg/kg) >Pb (0.03–0.48, mean: 0.19 ± 0.10 mg/kg) > Hg (0.001–0.029, mean 0.008 ± 0.006 mg/kg) ( Dame, 2013 ; Qin et al., 2021 ).…”

Section: Impact Of Seawater Pollution In Bivalves and Vibri...mentioning

confidence: 99%

The High Risk of Bivalve Farming in Coastal Areas With Heavy Metal Pollution and Antibiotic-Resistant Bacteria: A Chilean Perspective

Pavón

Riquelme

Jaña

et al. 2022

Front. Cell. Infect. Microbiol.

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Anthropogenic pollution has a huge impact on the water quality of marine ecosystems. Heavy metals and antibiotics are anthropogenic stressors that have a major effect on the health of the marine organisms. Although heavy metals are also associate with volcanic eruptions, wind erosion or evaporation, most of them come from industrial and urban waste. Such contamination, coupled to the use and subsequent misuse of antimicrobials in aquatic environments, is an important stress factor capable of affecting the marine communities in the ecosystem. Bivalves are important ecological components of the oceanic environments and can bioaccumulate pollutants during their feeding through water filtration, acting as environmental sentinels. However, heavy metals and antibiotics pollution can affect several of their physiologic and immunological processes, including their microbiome. In fact, heavy metals and antibiotics have the potential to select resistance genes in bacteria, including those that are part of the microbiota of bivalves, such as Vibrio spp. Worryingly, antibiotic-resistant phenotypes have been shown to be more tolerant to heavy metals, and vice versa, which probably occurs through co- and cross-resistance pathways. In this regard, a crucial role of heavy metal resistance genes in the spread of mobile element-mediated antibiotic resistance has been suggested. Thus, it might be expected that antibiotic resistance of Vibrio spp. associated with bivalves would be higher in contaminated environments. In this review, we focused on co-occurrence of heavy metal and antibiotic resistance in Vibrio spp. In addition, we explore the Chilean situation with respect to the contaminants described above, focusing on the main bivalves-producing region for human consumption, considering bivalves as potential vehicles of antibiotic resistance genes to humans through the ingestion of contaminated seafood.

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“…It is therefore important to monitor and control bivalve consumption in the long term. Current accumulation levels of bivalves are safe; continued and excessive lifetime consumption over 70 years may pose a target cancer risk for individuals (Qin et al, 2021) [18] . The levels of heavy metals in bivalves and seawater were analyzed, showed the average concentrations of Zn, Cu, Cr, Pb, As, Cd, and Hg in bivalves decreased in that order.…”

Section: Risk Assessment Of Heavy Metals In Bivalvementioning

confidence: 99%

An overview of the impact of heavy metal accumulation on marine molluscs

Morankar,

R Kurhe

2023

IJMRGE

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Seafood, particularly bivalves, is an excellent source of balanced food. However, due to the rising concentration of heavy metals in the aquatic environment, it can have a negative effect on public health. Heavy metals are common inorganic pollutants in the environment, and their presence poses a significant threat to human beings due to their toxic effect on the biotic system. Various biological and geochemical factors influence the uptake and bioaccumulation of these heavy metals in marine organisms. As a result of the contamination from industrial wastage and domestic discharges from urbanized areas, marine organisms, including molluscs, reflect the rising level of environmental pollution. This study aimed to gather information on environmental contamination in different aquatic organisms and molluscs. Despite their potential as bioindicators for heavy metal pollution in aquatic organisms, there needs to be more research on nutritional composition and bioaccumulation in molluscs.

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Concentrations and health risks of heavy metals in five major marketed marine bivalves from three coastal cities in Guangxi, China

Cited by 32 publications

References 74 publications

Probabilistic Risk Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China—Young Children Potentially at a Health Risk

Probabilistic Risk Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China—Young Children Potentially at a Health Risk

The High Risk of Bivalve Farming in Coastal Areas With Heavy Metal Pollution and Antibiotic-Resistant Bacteria: A Chilean Perspective

An overview of the impact of heavy metal accumulation on marine molluscs

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