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Frontiers of Environmental Science & Engineering 2024年第7期18卷 141-156页

作者： Miao He Guijian Liu Xiaodan Shi Lei Wu Qiang Chen CAS Key Laboratory of Crust-Mantle Materials and Environment School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China Anhui Academy of Environmental Sciences Hefei 230022China School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009China

Fish are important food sources for humans,and the availability of appropriate amount of trace elements(TEs)plays a crucial role in fish ***,due to large volumes of sewage discharge,high levels of certain elements are present in aquatic environments,and these elements accumulate in fish and potentially affect human *** this study,the distribution and bioaccumulation capacity of trace elements in six dominant fish species from Chaohu Lake(China)were *** results showed that the bioaccumulation capacity of fish for Zn was greater than other *** the source of the TEs in the fish were explored along with the concentration of the TEs in the aquatic environment,which indicated that TEs in fish were mainly obtained through ingestion and indirectly affected by the industrial activities in the ***,stable carbon and nitrogen isotopes were used to classify the trophic levels and explore the biological magnification of TEs of the *** was found that Sb and Sr showed biomagnification with the increase of trophic level of *** on the above analyses,the environmental biogeochemical cycle model of TEs in the lake was distinguished and established,which can offer valuable insights for sustainable fishery management in the downstream Yangtze River Delta ecosystem.

关键词： Trophic level bioaccumulation Risk assessment Trace elements

bioaccumulation and function analysis of glutathione S-transferase isoforms in Manila clam Ruditapes philippinarum exposed to different kinds of PAHs

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Journal of Environmental Sciences 2022年第2期34卷 129-139页

作者： Yueyao Zhou Linlin Yao Luqing Pan Hongdan Wang Key Laboratory of Mariculture Ministry of EducationOcean University of ChinaQingdao 266003China

This study analyzed the function of different glutathione S-transferase(GST)isoforms and detoxification metabolism responses in Manila clam,Ruditapes philippinarum,exposed to 4 kinds of polycyclic aromatic hydrocarbons(PAHs)single,and their mixtures for 15 days under laboratory conditions.13 kinds of GSTs in *** were classified,and the results of tissue distribution indicated that 12 kinds of GSTs(except GST sigma 3)expressed most in digestive *** detected the m RNA expression levels of aryl hydrocarbon receptor signaling pathway,and detoxification system in digestive glands of clams exposed to benzo[a]pyrene(Ba P),chrysene(CHR),benzo[a]anthracene(Ba A),benzo[b]fluoranthene(Bb F),and Ba P+CHR+Ba A+Bb F,*** these genes,we selected GST-sigma,GST-omega and GST-pi as potential indicators to Ba P;GST-sigma,GST-A and GST-rho to CHR;GST-pi,GST-sigma,GST-A,GST-rho and GST-microsomal to Ba A;GST-theta and GST-mu to Bb F;while GST-pi and GST-mu to the mixture of Ba P,CHR,Ba A and Bb ***,the bioaccumulation of PAHs in tissues increased remarkably over time,and showed an obvious *** the same concentration,the bioaccumulation in single exposure group was higher than that in mixture group,and the bioaccumulation of PAHs in tissues with different concentrations of stress was *** results revealed the metabolic differences and bioaccumulation rules in clams exposed to four kinds of PAHs,and provided more valuable information for the PAHs risk assessment.

关键词： Ruditapes philippinarum PAHs bioaccumulation Glutathione S-transferase function analysis

bioaccumulation of metals in human blood in industrially contaminated area

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Journal of Environmental Sciences 2011年第12期23卷 2069-2077页

作者： F. Akbar Jan M. Ishaq S. Khan M. Shakirullah S. M. Asim I. Ahmad Fazal Mabood Institute of Chemical Sciences University of Peshawar 25120 Khyber-Pukhtunkhwa Pakistan Department of Environmental Sciences University of Peshawar Peshawar Pakistan Department of Statistics University of Peshawar Peshawar Department of-Biological-Sciences ＆ Chemistry University of Nizwa Nizwa Oman

Heavy metals were analyzed in different foods crops, milk, meat and blood samples collected from different age group subjects such as children （1–12 years）, adolescent （12–18 years）, adults （18–45 years） and old age （above 45 and 55 years for males and females, respectively） from polluted and relatively less polluted areas. The results revealed that the consumption of contaminated food crops, meat and milk have significantly increased the concentrations of selected metals in the human blood. Cu, Zn and Mn concentrations were significantly higher （p 0.05） in the blood samples collected from the polluted area as compared to control area. Old people had accumulated high concentrations of metals as compared to the younger ones within the same area. Males accumulated higher concentrations of metals as compared to females.

关键词： bioaccumulation heavy metals blood contaminated meat milk forage grass

bioaccumulation and human health risk assessment of trace metals in the freshwater mussel Cristaria plicata in Dongting Lake, China

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Journal of Environmental Sciences 2021年第6期33卷 335-350页

作者： Dianbao Li Baozhu Pan Liang Chen Yuzhu Wang Taoyi Wang Jun Wang Hao Wang State Key Laboratory of Eco-hydraulic in Northwest Arid Region of China Xi’an University of TechnologyXi’an 710048ShaanxiChina

Trace metal contamination in water and bioaccumulation in aquatic organisms are human health risks of increasing concern. However, the bioaccumulation of trace metals in the organs of the mussel Cristaria plicata in Dongting Lake, China and the human health risks of mussel consumption are largely unknown. We investigated the concentrations of 15 trace metals and metalloids in surface water, sediments, and C. plicata organs(foot, gill, mantle, and visceral mass) and quantified the bioaccumulation and human health risk of these trace metals in specimens collected from Dongting Lake. The concentrations of most metals in surface water exceeded previously published background values. In contrast, the concentrations of most metals in sediments showed a decreasing trend. Overall, the metal concentrations in the gill and visceral masses of C. plicata were higher than those in the foot and mantle, and higher bioaccumulation capacities were observed for essential metals than for nonessential metals. The mean concentrations of the trace elements Zn, Pb, Cd, As, Cu, and Cr in C. plicata foot samples were lower than the threshold values established by international and Chinese organizations. The estimated daily intake(EDI) values of the essential metal Mn in C. plicata foot was higher than the recommended tolerable daily intake(TDI) values for juveniles. Only Mn for juveniles and As for both juveniles and adults may pose noncarcinogenic health risks through foot consumption. The hazard index(HI) values for adults and juveniles were higher than 1, suggesting significant risks of noncarcinogenic effects to humans by exposure to multiple metals.

关键词： Trace metals bioaccumulation Health risks Cristaria plicata Dongting lake

bioaccumulation of cadmium bound to humic acid by the bivalve Meretrix meretirx Linnaeus from solute and particulate pathways

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Journal of Environmental Sciences 2010年第2期22卷 198-203页

作者： Xing Wu Yongfeng Jia Huijie Zhu He Wang Key Laboratory of Pollution Ecology and Environmental Engineering lnstimte of Applied Ecology Chinese Academy of Sciences Shengyang 110016 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China

Humic acid is an important pool of heavy metals in sediments. Generally, the presence of refractory humic matter in aquatic systems would decrease the bioavailability of Cd and hence control the bioaccumulation of Cd in benthic animals. In the present work, we applied a suspending system to determine the relative importance of particulate and dissolved fractions of humic acid as Cd sources for the bivalve Meretrix meretrix and to investigate the difference of bioaccumulation characteristics of Cd adsorbed on different fractions of humic acid. The results showed *** bioaccumulation characteristics of Cd from particulate and dissolved fractions of humic acid were apparently different due to biological responses of the clam to the particulates. At Cd concentration of 140 mg/kg, the accumulation of Cd from Cd associated with humic acid mixtures was mainly attributed to the dissolved fractions of humic acid. Compared to particulate fractions, Cd associated with the dissolved fractions of humic acid may be more bioavailable.

关键词： humic acid bioaccumulation cadmium Meretrix meretrix Linnaeus

bioaccumulation and depuration of chromium in the selected organs and whole body tissues of freshwater fish Cirrhinus mrigala individually and in binary solutions with nickel

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Journal of Environmental Sciences 2009年第2期21卷 229-236页

作者： PL.RM.Palaniappan S.Karthikeyan Department of Physics Annamalai University Department of Physics St.Joseph College of Engineering

Contamination of aquatic ecosystems with heavy metals has been receiving increased worldwide attention due to their harmful effects on human health and other organisms in the environment. Most of the studies dealing with toxic effects of metals deal with single metal species, while the aquatic organisms are typically exposed to mixtures of metals. Hence, in order to provide data supporting the usefulness of freshwater fish as indicators of heavy metal pollution, it has been proposed in the present study to investigate the bioaccumulation and depuration of chromium in the selected organs of freshwater fingerlings Cirrhinus mrigala, individually and in binary solutions with nickel. The results show that the kidney is a target organ for chromium accumulation, which implies that it is also the ＂critical＂ organ for toxic symptoms. The results further show that accumulation of nickel in all the tissues of C. mrigala is higher than that of chromium. In addition, the metal accumulations of the binary mixtures of chromium and nickel are substantially higher than those of the individual metals, indicating synergistic interactions between the two metals. Theoretically the simplest explanation for an additive joint action of toxicants in a mixture is that they act in a qualitatively similar way. The observed data suggest that C. mrigala could be suitable monitoring organisms to study the bioavailability of water-bound metals in freshwater habitats.

关键词： freshwater fish Cirrhinus mrigala bioaccumulation metal mixtures synergism

bioaccumulation of heavy metals by Phragmites australis cultivated in synthesized substrates

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Journal of Environmental Sciences 2009年第10期21卷 1409-1414页

作者： WANG He JIA Yongfeng Liaoning Province Key Laboratory of Basin Pollution Control Liaoning Academy of Environmental Sciences Shengyang 110031 China. Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China.

Accumulation of heavy metals from various oxides with adsorbed cadmium by wetland plant Phragmites australis was studied to evaluate the fate of heavy metals in the sediment of constructed wetlands. Hoagland solution was used as nutrition supply, and single metal oxide with adsorbed cadmium was applied as contaminant to study the accumulation characteristics of cadmium and the substrate metals by P. australis. After 45-d treatment, the bioaccumulation degree in root followed the order： Al（OH）3 〉 Al2O3 〉 Fe3O4 〉 MnO2 〉 FeOOH. Heavy metals absorbed by P. australis were largely immobilized by the roots with little translocation to aboveground parts.

关键词： heavy metals bioaccumulation metal oxides adsorption

bioaccumulation and translocation of cadmium in cole (Brassica campestris L.) and celery (Apium graveolens) grown in the polluted oasis soil,Northwest of China

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Journal of Environmental Sciences 2011年第8期23卷 1368-1374页

作者： Yiming Yang Zhongren Nan Zhuanjun Zhao Zhaowei Wang Shengli Wang Xia Wang Wangqiang Jin Cuicui Zhao Key Laboratory of Western China's Environmental System Ministry of Education College of Resource and Environment Lanzhou UniversityLanzhou 730000 China. School of Chemical Engineering North West University for Nationalities Lanzhou 730030 China

A pot experiment was conducted to study the bioaccumulation and translocation of cadmium （Cd） in cole （Brassica campestris L.） and celery （Apium graveolens） grown in the Cd-polluted oasis soil, Northwest of China. The results showed that Cd in the unpolluted oasis soil was mainly bound to carbonate fraction （F2） and Fe-Mn oxide fraction （F3）. However, marked change of Cd fractions was observed with increasing soil Cd concentrations, in which the concentration of Cd in F1 （exchangeable fraction）, F2 and F3 increased significantly （p 〈 0.001 for F1, F2 and F3）. The growth of cole and celery could be facilitated by low concentrations of Cd, but inhibited by high cortcentmdons. The correlation analysis between the fraction distribution coefficient of Cd in the soil and Cd concentration accumulated in the two vegetables showed that Cd in F1 in the soil made the greatest contribution on the accumulation of Cd in the two vegetables. The high bio-eoncentration factor and the translocation factor of Cd in both cote and celery were observed, and Cd had higher accumulation in the edible parts of the two vegetables. Therefore, both cole and celery grown in Cd-polluted oasis soil have higher risk to human health. And the two vegetables are not suitable to be cultivated as vegetables consumed by human in the Cd-polluted oasis soil.

关键词： bioaccumulation translocation cadmium cole and celery oasis soil

bioaccumulation and changes of trace metals over the last two decades in marine organisms from Guangdong coastal regions, South China

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Journal of Environmental Sciences 2020年第12期32卷 103-108页

作者： Lulu Zhang Wen Yan Zhiyong Xie Guanqiang Cai Wenying Mi Weihai Xu Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal ResearchInstitute of Coastal ResearchGeesthacht 21502Germany Guangzhou Marine Geological survey Guangzhou 510760China MINJIE Institute of Environmental Science and Health Research Geesthacht 21502Germany Innovation Academy of South China Sea Ecology and Environmental Engineering Chinese Academy of SciencesGuangzhou 510301China University of Chinese Academy of Science Beijing 100049China

Trace metal(Cr, Ni, Cu, Zn, Cd and Pb) exposures, distribution and bioaccumulation were investigated in marine organisms from Guangdong coastal regions, South China. The results showed that all of the selected metals were observed in marine organisms with a predomination of Cu and Zn. The metal exposure levels exhibited obvious variations between species with the decreasing order of crab > shellfish > shrimp > fish. The higher metals enrichment seen in shellfish and crab species primarily attributed to their living habits and the higher sediment background values of trace metals. Endpoint bioaccumulation factor(BAFfd) was used to characterize the bioaccumulation potentials of marine organisms to trace metals, of which Cu and Zn were the most accumulated elements. The exposure of trace metals in the cultured organisms was far lower than those in wild marine organisms, which is probably due to the effect of growth dilution. Comparisons with previous studies demonstrated that the concentration profiles of most trace metals declined over the last one to two decades, except Cu, that increased indistinctively.

关键词： Trace metal bioaccumulation Marine organism South China

bioaccumulation of heavy metals in fishes from Taihu Lake,China

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Journal of Environmental Sciences 2007年第12期19卷 1500-1504页

作者： CHI Qiao-qiao ZHU Guang-wei Alan Langdon Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing 210008 China School of Science and Technology University of Waikato Hamilton New Zealand

The Cr, Zn, Cu, Cd, Pb contents were determined in Cyprinus carpio Linnaeus, Carassius auratus Linnaeus, Hypophthalmichthys molitrix and Aristichthys nobilis, which were caught from Meiliang Bay, Taihu Lake, a large, shallow and eutrophic lake of China. The results showed that：（1） the Cr, Cu, Pb, Cd contents in the edible parts of the four fish species were much lower than Chinese Food Health Criterion （1994）, but the Zn contents were higher than the Criterion; （2） Cd contents were the highest in the liver of fish, Pb contents were almost the same in all organs of fish, Cr contents mainly enriched in the skin and gonads, Zn contents were the highest in the gonad （♀）, and Cu contents were the highest in the liver; （3） the total metal accumulation was the greatest in the liver and the lowest in the muscle. The total metal accumulation was the highest in C. auratus L. This investigation indicated that fish products in Taihu Lake were still safe for human consumption, but the amount consumed should be controlled under the Chinese Food Health Criterion to avoid excessive intake of Zn.

关键词： fish heavy metals bioaccumulation food safety Taihu Lake