Metal concentrations and risk assessment in water, sediment and economic fish species with various habitat preferences and trophic guilds from Lake Caizi, Southeast China

Jiang, Zhongguan; Xu, Nan; Liu, Bingxiang; Zhou, Lizhi; Wang, Juan; Wang, Chao; Dai, Bingguo; Wen, Xishan

doi:10.1016/j.ecoenv.2018.03.078

Cited by 141 publications

(66 citation statements)

References 37 publications

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“…In summary, the fish in high-trophic-guilds or those living at the bottom of water tended to accumulate higher contents of the trace metals, which is consistent with the findings of Bustamante et al 37 in Kerguelen Islands and Jiang et al 38 in Caizi Lake. This result suggests that the contribution of sediment to the accumulation of trace metals in fish is greater than that of water.…”

Section: Resultssupporting

confidence: 88%

Species-specific bioaccumulation of trace metals among fish species from Xincun Lagoon, South China Sea

Feng

Wang

et al. 2020

Sci Rep

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Xincun Lagoon is an important fishing area in northern Hainan Island, China. It has long been exposed to pollutants from local sewage, breeding cages and fishing boats, resulting in serious pollution threats to the survival of fish. In this study, we examined the concentrations of seven trace metals (Cu, Pb, Zn, Cd, Hg, As and Cr) in sixteen economic fish species collected from Xincun Lagoon and their exposed environment (water and sediment). The concentrations of Pb and Zn in the water column were higher than the safety threshold stipulated by Chinese legislation, while the contents of all examined metals in the sediment and fish species were lower than the legislative thresholds set by China and international organizations. The contents of trace metals in the fish species in high trophic levels or those that prefer to live in/on the sediment layer were significantly higher than those in other trophic levels and pelagic/subbenthic fish, these species had homogeneous anthropogenic pollution sources for Cu, Zn, Cd, Hg and As. Our results show that the trace metal contents in fish were mainly affected by trophic level and habitat preference. The contribution of metal exposure from the sediment to metal accumulation in fish was lower than that in water, especially for the Cd and Hg in the sediment. These results provide valuable information for further understanding the species-specific patterns of metal accumulation in fish and the development of targeted conservation measures for the environment and fish consumers.

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Section: Resultssupporting

confidence: 88%

Species-specific bioaccumulation of trace metals among fish species from Xincun Lagoon, South China Sea

Feng

Wang

et al. 2020

Sci Rep

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“…The calculation parameters of children and adults involved in Equation (3) are presented in Table 2. When the THQ of Hg was calculated, the total concentration of Hg in the muscle tissue was assumed to be equal to that of MeHg, as employed in previous studies [9,25]. The total target hazard quotient (TTHQ) equals the sum of the THQ value of each metal, which can be represented the following Equation 4: 1 China people's average body weight during the study; 2 The RfD value does belong to MeHg.…”

Section: Health Risk Assessment Of Fish Consumptionmentioning

confidence: 99%

Health Risk Assessment of Metals (Cu, Pb, Zn, Cr, Cd, As, Hg, Se) in Angling Fish with Different Lengths Collected from Liuzhou, China

Miao

Hao³

et al. 2020

IJERPH

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Wild fish caught by anglers (WFAs) were confirmed to be usually contaminated with metals, and the contamination status is radically affected by the growth and length of the fish. To determine the contamination levels of metals and health risks in WFAs with different length ranges of fish, this study ascertained the concentration of eight metals, including Cu, Pb, Zn, Cr, Cd, As, Hg and Se, in 171 wild fishes collected from the watershed of Liujiang River. The assessment of metal pollution and health risks from the consumption of these fishes with seven length ranges were accomplished. The obtained results implied a relatively high concentration of Zn, Cr, and Cd up to 109.294 mg/kg, 4.226 mg/kg, and 0.196 mg/kg (wet weight), respectively, which exceed the corresponding Maximum Residue Limit (MRL). The negative correlation between Cu, Zn, Cr, and Cd was observed to be significant with fish length, signifying a possible occurrence of biological dilution on these metals. The WFAs were mostly contaminated with Cr and Cd irrespective of the length ranges of fish, which were denoted by the average pollution index (Pi) of Cr and Cd and were commonly found to be beyond 0.2. Based on the results of health risk assessment analysis, most of the target hazard quotient (THQ) values of Cr were below 1, implying that the consumption of wild fish for adults has insignificant health risk. For children, the total target hazard quotient (TTHQ) values of beyond 1 were found in fishes with the length range of <25 cm, particularly a TTHQ value 1.627 in the range of 10–15 cm, indicating that children are being prone to serious health risks owing to the consumption of WFAs. The weekly recommended consumption of WFAs with the length range of 10–15 cm for adults and children was 0.298 kg/week and 0.149 kg/week, respectively. These are substantially lower than the current rate of fish consumption (0.42 kg/week), and therefore, the wild fish with the length range of 10–15 cm should be avoided for consumption.

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“…HMs are classified as toxic because they can penetrate water aquifers and consequently, agglomerate in the food chain 12–14 . It is important to mention that heavy metal toxicity is based on the fact that they are non-biodegradable, persistent, xenobiotic and can accumulate in humans over a time 15–18 . HMs such as chromium (Cr).…”

Section: Introductionmentioning

confidence: 99%

“…Also, the inclusion of geostatistics to obtain the spatial distribution of contaminants, observe environmental conditions, explain scientific results, and proffer water management solutions have been adopted by several researchers 45–50 . To handle large datasets containing diverse variables, investigators have adopted the use of statistical tools to transform the datasets into factual interpretations useful for general conclusions 15,33,49,51–53…”

Section: Introductionmentioning

confidence: 99%

Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria

Emenike

Tenebe

Ogarekpe

et al. 2019

Sci Rep

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The study investigated the concentration of potentially toxic heavy metals (PTHM) in groundwater sources (hand-dug wells and boreholes), spatial distribution, source apportionment, and health risk impact on local inhabitants in Ogun state. One hundred and eight water samples from 36 locations were analysed for Cr, Ni, Pb, Fe, Mn, Mg, Ca and Al. Mean values of 0.013, 0.003, 0.010, 0.088, 0.004 and 3.906 mg/L were obtained for Pb, Cr, Ni, Fe, Mn, and Al respectively at Iju district. Meanwhile, the average values of Pb, Ni, Fe, Mn, and Al concentrations at Atan district were 0.008, 0.0023, 0.011, 0.003, and 1.319 mg/L respectively. Results also revealed that the 44.4% and 11.13% of the borehole and well-water samples surpassed the World Health Organization limits for Pb at Atan. In Iju, the concentration of Pb and Al were relatively high, exceeding the stipulated standard in 100% of the samples. The Multivariate statistical analysis employed produced principal factors that accounted for 78.674% and 86.753% of the variance at Atan and Iju region respectively. Based on this, PTHM were traced to geogenic sources (weathering, dissolution, leaching) and anthropogenic emissions from industrial activities. In addition, the hazard quotient values obtained from the health risk assessment identified potential non-carcinogenic risk due to Pb via ingestion route. Ni was found to have high carcinogenic risk on adult and children, having exceeded the threshold limit. The outcome of the carcinogenic risk assessment revealed that 88.67% (for adults) and 1.12% (for children) of the cancer risk values surpassed the specified limits at Iju, whereas the cancer risk values were considerably lesser at Atan. In conclusion, the report of this study should serve as a beacon that will spark up strategic planning, comprehensive water resource management, and extensive treatment schemes in order to address the health complications linked with environmental pollution.

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Metal concentrations and risk assessment in water, sediment and economic fish species with various habitat preferences and trophic guilds from Lake Caizi, Southeast China

Cited by 141 publications

References 37 publications

Species-specific bioaccumulation of trace metals among fish species from Xincun Lagoon, South China Sea

Species-specific bioaccumulation of trace metals among fish species from Xincun Lagoon, South China Sea

Health Risk Assessment of Metals (Cu, Pb, Zn, Cr, Cd, As, Hg, Se) in Angling Fish with Different Lengths Collected from Liuzhou, China

Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria

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