Trace metal contamination and species-specific bioaccumulation in the Zhoushan Fishery, northwestern East China Sea

Feng, Wei; Xu, Hengtao; Zhu, Wenzhuo; Zhang, Haifeng; Zhang, Dongrong; Wang, Zhifu

doi:10.1007/s11356-021-12923-9

Cited by 11 publications

(4 citation statements)

References 37 publications

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“…The bags were immersed in 10 L of seawater spiked with stable isotopes and allowed to equilibrate for 30 days, with the aim that the bioavailability of these isotopes reflects the bioavailability of metals adsorbed on SPM in natural environments. In the seawater, initial concentrations of 113 Cd, 68 Zn, 61 Ni, 65 Cu, and 206 Pb were 30, 30, 20, 30, and 100 μg L −1 , respectively. These concentrations were expected to decrease to environmentally relevant levels after achieving distribution equilibrium, based on our estimation from the K d values obtained above.…”

Section: Spm Labelingmentioning

confidence: 99%

“…Experimental setup for the determination of clam metal assimilation efficiency from suspended particulate matter (SPM). One individual clam, pulse-fed with isotope-labeled SPM ( 113 Cd, 65 Cu, 61 Ni, 206 Pb, and 68 Zn), was suspended by a nylon string glued to its shell and depurated in 250 mL of recirculated, aerated seawater. Clam feces were collected using a 0.45 μm cellulose acetate (CA) filter, and feces-released dissolved isotopes were concentrated in a Chelex-100 resin-filled column.…”

Section: Spm Labelingmentioning

confidence: 99%

“…For example, while Chinese seawater quality standard for aquaculture water sets Pb at 10 μg L −1 (Class III), 64 turbid waters (e.g., SPM concentration at 30 mg L −1 ) demand an adjustment to 0.36 μg L −1 by dividing by an MF of 28. This concentration often is not exceeded in Chinese coastal waters, such as in the Jiulong River estuary (0.02−0.20 μg L −1 ), 11 the Pearl River estuary (0.01−0.23 μg L −1 ), 12 and the Bohai Sea and Yellow Sea (0.003−0.019 μg L −1 ), 65 though exceedances are not uncommon, as observed in Zhoushan (0.10−0.85 μg L −1 ). 66 However, it is important to acknowledge the considerable uncertainties and precautious nature of the adjustments, as indicated by the wide confidence intervals of MF values; different MF values can be used, depending on the acceptable risk level.…”

Section: Modifying Factors Formentioning

confidence: 99%

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Turbid Waters and Clearer Standards: Refining Water Quality Criteria for Coastal Environments by Encompassing Metal Bioavailability from Suspended Particles

Qian,

Hu,

Xiong

et al. 2024

Environ. Sci. Technol.

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Suspended particulate matter (SPM) carries a major fraction of metals in turbid coastal waters, markedly influencing metal bioaccumulation and posing risks to marine life. However, its effects are often overlooked in current water quality criteria for metals, primarily due to challenges in quantifying SPM's contribution. This contribution depends on the SPM concentration, metal distribution coefficients (K d ), and the bioavailability of SPM-bound metals (assimilation efficiency, AE), which can collectively be integrated as a modifying factor (MF). Accordingly, we developed a new stable isotope method to measure metal AE by individual organisms from SPM, employing the widely distributed filter-feeding clam Ruditapes philippinarum as a representative species. Assessing SPM from 23 coastal sites in China, we found average AEs of 42% for Zn, 26% for Cd, 20% for Cu, 8% for Ni, and 6% for Pb. Moreover, using stable isotope methods, we determined metal K d of SPM from these sites, which can be well predicted by the total organic carbon and iron content (R 2 = 0.977). We calculated MFs using a Monte Carlo method. The calculated MFs are in the range 9.9−43 for Pb, 8.5−37 for Zn, 2.9−9.7 for Cu, 1.4−2.7 for Ni, and 1.1−1.6 for Cd, suggesting that dissolved-metal-based criteria values should be divided by MFs to provide adequate protection to aquatic life. This study provides foundational guidelines to refine water quality criteria in turbid waters and protect coastal ecosystems.

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Section: Spm Labelingmentioning

confidence: 99%

Section: Spm Labelingmentioning

confidence: 99%

Section: Modifying Factors Formentioning

confidence: 99%

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Turbid Waters and Clearer Standards: Refining Water Quality Criteria for Coastal Environments by Encompassing Metal Bioavailability from Suspended Particles

Qian,

Hu,

Xiong

et al. 2024

Environ. Sci. Technol.

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“…However, as the marine environment was polluted by heavy metals, the originally highquality marine foods, such as fish, become harmful substances that endanger the health of people who eat them [11]. Many scholars study and evaluate marine environmental quality through marine organisms [8,[12][13][14][15]. At present, there are few reports on comprehensive studies on seawater, surface sediment, and fish in Haikzou Bay [16,17].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Health Risk Assessment of Heavy Metal Pollution in Haikou Bay and Adjacent Seas

Wang

Zhang

Zhu

et al. 2022

IJERPH

Self Cite

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Heavy metal contamination in coastal waters may pose a serious threat to aquatic products and human health. This study aimed to gain a better understanding of the pollution-induced by heavy metals in Haikou Bay and adjacent seas and assessed the potential ecological risk. The spatial distributions of heavy metals including Cu, Pb, Zn, Cd, Cr, Hg, and As were analyzed in the surface and bottom water, surface sediment, and five species of fish collected from Haikou Bay and adjacent seas. For seawater, the results showed that the horizontal distribution of the seven heavy metal elements in the study area had no uniform pattern due to the influence of complex factors, such as land-based runoff, port shipping, and ocean current movement. In contrast, the vertical distribution of these heavy metal elements, except for Zn and Cd, showed high concentrations in the surface water and low concentrations in the bottom water. Due to the symbiotic relationship between Zn and Cd, the distributions of these two elements were similar in the study areas. Different from the complex distribution of heavy metals in water, the highest concentrations of these elements in surface sediment all occurred at station 11 except for Pb. Our study revealed that organic carbon and sulfide are important factors affecting the heavy metal concentrations in the surface sediments. Heavy metals in waters and surface sediment were lower than the quality standard of class I according to the China National Standard for Seawater Quality and the sediment quality, except for Zn in water, suggesting that the seawater and surface sediment in Haikou Bay and adjacent seas has not been polluted by heavy metals. Additionally, the heavy metal As was the main element affecting the quality of fish in this study area, and attention should be paid in the future. The target hazard quotient (THQ) values of seven heavy metal elements in fish were all lower than 1.0, indicating that eating fish in this area will not pose a risk to human health. These results provide valuable information for further understanding the status of heavy metal pollution in Haikou Bay and adjacent seas and the development of targeted conversation measures for the environment and fish consumers.

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An evaluation of spatial and seasonal distributions of dissolved trace metals in the water of the natural wetlands

Alkhadher,

Suratman,

Mohd Sallan

2023

Journal of Environmental Management

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Trace metal contamination and species-specific bioaccumulation in the Zhoushan Fishery, northwestern East China Sea

Cited by 11 publications

References 37 publications

Turbid Waters and Clearer Standards: Refining Water Quality Criteria for Coastal Environments by Encompassing Metal Bioavailability from Suspended Particles

Turbid Waters and Clearer Standards: Refining Water Quality Criteria for Coastal Environments by Encompassing Metal Bioavailability from Suspended Particles

Characteristics and Health Risk Assessment of Heavy Metal Pollution in Haikou Bay and Adjacent Seas

An evaluation of spatial and seasonal distributions of dissolved trace metals in the water of the natural wetlands

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