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Li L.,Nanjing Forestry University | Fu Q.-L.,CAS Nanjing Institute of Soil Science | Fu Q.-L.,Jiangxi Institute of Analyzing and Testing | Achal V.,East China Normal University
Fresenius Environmental Bulletin | Year: 2015

Extracellular polymeric substances (EPS) are of increasing interest in environmental science because of their important role in biological wastewater treatment as well as biogeochemistry of metals and organic carbon. Lots of papers on the topic of EPS have been published by authors from diverse countries or territories including Mainland China. However, a systematic analysis of the research progress of EPS is still not available. In the present study, a comparison of EPS research between Mainland China and other countries was conducted by bibliometric methods based on Web of Science database. The number of papers was increasing with publish year, and dominating research articles were in English language. Five research organizations of Mainland China and four authors were listed in the top 20 most productive institutions and top 10 most productive authors, respectively. However, the performance of Mainland China's average citation per item (ACI) and Mainland China authors' ACI, H-index, and h-index were relatively poor. The gap between Mainland China and developed countries was still large in scientific research of EPS. Results indicate that Chinese authors should focus more on high quality work of EPS, and excellent journals from Mainland China are expected. Government and authors should pay more attention to promote Mainland China's research work related to EPS. © by PSP.


Fu Q.-L.,Jiangxi Institute of Analyzing and Testing | Li L.,Nanjing Forestry University | Achal V.,East China Normal University | Jiao A.-Y.,Peking University | Liu Y.,Jiangxi Institute of Analyzing and Testing
Human and Ecological Risk Assessment | Year: 2015

ABSTRACT: Heavy metals and As in rice are of increasing concern in China. In this study, concentrations of Pb, Cd, Cu, Cr, Sb, Ni, and As in rice collected from markets in Fuzhou, China, were investigated by ICP-MS and AFS, and their potential health risk to inhabitants were estimated by target hazard quotient (THQ), hazard index (HI), and target cancer risk (TR). The results showed that the concentrations of the seven studied elements in rice grain were all below the permissible limits of China's national standards for foodstuffs (NY/T 419–2007 and GB 2726–2012). For non-carcinogenic risk, the THQ values of individual elements were within the safe interval. However, without considering the bio-accessibility and speciation of toxic elements, the HI values suggest inhabitants in Fuzhou may experience potential health effects due to rice consumption. Cadmium is the major contributor to HI, followed by As. The TR values of As for adults and children were both higher than the acceptable range. The results of this study suggest that more attention should be paid toward monitoring toxic substances (especially Cd and As) in rice in order to assure the food safety for consumers in Fuzhou, China. © 2015, Copyright © Taylor & Francis Group, LLC.


Fu Q.-L.,Jiangxi Institute of Analyzing and Testing | Liu Y.,Jiangxi Institute of Analyzing and Testing | Li L.,Nanjing Forestry University | Achal V.,East China Normal University
Food Additives and Contaminants: Part B Surveillance | Year: 2014

Pb, Zn and Cu were determined in 35 Preserved Egg (PE) samples, 25 Salted Egg (SE) samples and 40 Egg Preserved in Rice Wine (EPRW) samples collected from Jiangxi province by ICP-MS. The corresponding health risk for consumers was assessed by the target hazard quotients (THQ) and hazard index (HI). Average Pb, Zn and Cu content in all samples was 0.125 mg/kg, 10.939 mg/kg and 2.094 mg/kg, respectively. Average Pb content in PE was significantly higher than in SE and EPRW. THQ and HI values were less than 1, indicating that intake of heavy metals from PE, SE and EPRW will not pose a significant hazard risk to humans. However, more attention should be paid to control the ingestion by PE, which is the main source of Pb, Zn and Cu for consumers among these three egg products. © 2013 © 2013 Taylor & Francis.


Li L.,Nanjing Forestry University | Fu Q.-L.,CAS Nanjing Institute of Soil Science | Fu Q.-L.,Jiangxi Institute of Analyzing and Testing | Achal V.,East China Normal University | Liu Y.,Jiangxi Institute of Analyzing and Testing
Environmental Monitoring and Assessment | Year: 2015

Heavy metals and Al in tea products are of increasing concern. In this study, contents of Al, Cd, Co, Cr, Cu, Ni, and Pb in commercially available green tea and its infusions were measured by ICP-MS and ICP-AES. Both target hazard quotient (THQ) and hazard index (HI) were employed to assess the potential health risk of studied metals in tea leaves and infusions to drinkers. Results showed that the average contents of Al, Cd, Co, Cr, Cu, Ni, and Pb in tea leaves were 487.57, 0.055, 0.29, 1.63, 17.04, 7.71, and 0.92 mg/kg, respectively. Except for Cu, metal contents were within their maximum limits (1, 5, 30, and 5 mg/kg for Cd, Cr, Cu, and Pb, respectively) of current standards for tea products. Concentrations of metals in tea infusions were all below their maximum limits (0.2, 0.005, 0.05, 1.0, 0.02, and 0.01 mg/L for Al, Cd, Cr(VI), Cu, Ni, and Pb, respectively) for drinking water, and decreased with the increase of infusion times. Pb, Cd, Cu, and Al mainly remained in tea leaves. The THQ from 2.33 × 10−5 to 1.47 × 10−1 and HI from1.41 × 10−2 to 3.45 × 10−1 values in tea infusions were all less than 1, suggesting that consumption of tea infusions would not cause significant health risks for consumers. More attention should be paid to monitor Co content in green tea. Both THQ and HI values decreased with the increase of infusion times. Results of this study suggest that tea drinkers should discard the first tea infusion and drink the following infusions. © 2015, Springer International Publishing Switzerland.

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