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| 1 | Fraction distribution and risk assessment of heavy metals in sediments of Moshui Lake显示文摘在城市的湖检验重金属污染的地位和风险在中国,几重金属的分发(例如, Cr, Cu, Ni, Pb, Zn ) 在莫休·莱克,的沉积 Hangyang 区域,武汉城市,被描绘。快速的都市化的过程和这个区域的工业化也被学习在沉积与金属累积侧面发现它的关系。在沉积的重金属的全部的集中比严重效果水平(SEL ) 高,这被发现,根本采样地点,除了那些在河边的地区。Cr 和 Cu 最大值集中是 1, 780 和 1, 250 mg/kg,约 16 并且 11 倍于 SEL,价值,和他们在一件样品象 32 厘米一样显得深。碳酸盐和 Zn 的可交换的部分是超过 50% 全部的 Zn 内容,导致根据风险评价代码的很高的风险(皇家装甲兵) 。为 Cu 和 Ni,媒介皇家装甲兵,价值被作出对有利的裁决碳酸盐和可交换的部分 11%20% 。作为在水的系统的沾染物的敏感指示物,在沉积的重金属反映地区性的都市化,工业化,和环境管理的结果。与快速的都市化,沉积 Pb 和 Zn 集中增加了。试验性的结果证明高沉积的重金属集中源于快速的都市化和工业化,它将绝对在城市的湖导致实质的水的环境衰落。 | LIU Honglei LI Liqing YIN Chengqing SHAN Baoqing | 2008 | Journal of Environmental Sciences2008，20，4： | 46 |
| 2 | Temporal and spatial variation of nitrogen and phosphorus and eutrophication assessment for a typical arid river - Fuyang River in northern China显示文摘Based on water quality surveys over 2 years(July to December,in 2014 and 2015) in a typical arid river in northern China the Xingtai segment of the Fuyang River basin — the variation of nitrogen(N) and phosphorus(P) was analyzed.The extent of water eutrophication of this segment was also assessed using a universal index formula for eutrophic evaluation and a logarithmic power function.The results showed that the average concentration of total N(TN) was 27.2 mg/L(NH_3-N,63.5%),total P(TP) was 2.0 mg/L(solution reactive phosphorus,68.8%).Temporal and spatial variations of N and P in this segment were observed.Concentrations of N and P in the arid season were higher than those in the rainy season.Spatially,the N and P concentrations followed the same trend;i.e.,higher in the city segment than in the suburbs,and decreasing along the river.The water eutrophication in the studied segment reached extremely high levels at all times(eutrophication index ≥76.3).Spatially,its trend was clearly linked with N and P.Water shortage,pollution accumulation and a weak self-purification function are the main reasons for the prominent eutrophication in this segment. | Wenqiang Zhang Xin Jin Dong Liu Chao Lang Baoqing Shan | 2017 | Journal of Environmental Sciences2017，29，5： | 30 |
| 3 | Comprehensive analysis of nitrogen distributions and ammonia nitrogen release fluxes in the sediments of Baiyangdian Lake, China显示文摘The condition of Baiyangdian Lake(BYDL) will improve as the Xiongan New Area evolves and fulfills its role of easing overcrowding and supporting economic growth. Water and sediment samples from BYDL were analyzed to provide information on nitrogen(N) contamination in BYDL. The mean ammonium N(NH_4^+-N), nitrate N, and total N concentrations in the water samples were 0.36, 0.12, and 2.22 mg/L, respectively, and the ranges were 0.003–8.38, 0.06–0.30,and 1.25–10.34 mg/L, respectively. The N concentrations in water gradually increased from the north to the south of BYDL. Sediment at 90% of the sampling sites was in or above the moderately contaminated class(1000–2000 mg/kg) defined in US Environmental Protection Agency total N pollution standards. Positive NH_4^+-N fluxes were found for 28 of the 34 sediment core samples, so the potential for NH_4^+-N being released from sediment was relatively high. The NH_4^+-N fluxes were 5.35–48.76 mg/m^2/day, and the mean and maximum fluxes were 8.71 and 48.76 mg/m^2/day, respectively. Benthic organisms will be affected more by NH_4^+-N and NH_3·H_2O in the surface sediment pore water(mean concentrations 4.93 and 0.13 mg/L, respectively) than by the other forms of N. | Yaoyao Zhu Xin Jin Wenzhong Tang Xin Meng Baoqing Shan | 2019 | Journal of Environmental Sciences2019，31，2： | 20 |
| 4 | Size distribution and diffuse pollution impacts of PAHs in street dust in urban streams in the Yangtze River Delta显示文摘Particles of dust washed off streets by stormwater are an important pathway of polyaromatic hydrocarbons(PAHs) into urban streams.This article presented a comprehensive assessment of the size distribution of PAHs in street dust particles,the potential risks of the particles in urban streams,and the sources and sinks of PAHs in the stream network.This assessment was based on measurements of 16 PAHs from the USEPA priority list in street dust particles and river sediments in Xincheng,China.The content of total PAHs ranged from 1629 to 8986 μg/kg in street dust particles,where smaller particles have a higher concentrations.Approximately 55% of the total PAHs were associated with particles less than 250 μm which accounted for 40% of the total mass of street dust.The PAH quantities increased from 2.41 to 46.86 μg/m2 in the sequence of new residential,rising through main roads,old town residential,commercial and industrial areas.The sediments in stream reaches in town were found to be sinks for street dust particle PAHs.The research findings suggested that particle size,land use and the hydrological conditions in the stream network were the factors which most influenced the total loads of PAH in the receiving water bodies. | ZHAO Hongtao YIN Chengqing CHEN Meixue WANG Weidong Jefferies Chris SHAN Baoqing | 2009 | Journal of Environmental Sciences2009，21，2： | 17 |
| 5 | Metals in sediment/pore water in Chaohu Lake:Distribution,trends and flux显示文摘Nine metals,Cd,Cu,Ni,Pb,As,Cr,Zn,Fe,and Mn in sediment and pore water from 57 sampling sites in Chaohu Lake(Anhui Province,China)were analyzed for spatial distribution,temporal trends and diffuse flux in 2010.Metals in the surface sediment were generally the highest in the western lake center and Nanfei-Dianbu River estuary,with another higher area of As,Fe,and Mn occurring in the Qiyang River estuary.Metal contamination assessment using the New York sediment screening criteria showed that the sediment was severely contaminated in 44% of the area with Mn,20% with Zn,16% with Fe,14% with As,and 6% with Cr and Ni.An increasing trend of toxic metals(Cd,Cu,Ni,Pb,As,Cr,Zn)and Mn with depth was shown in the western lake.Compared with metal content data from the sediment survey conducted in 1980s,the metal content of surface sediment in 2010 was 2.0 times that in the 1980s for Cr,Cu,Zn,and As in the western lake,and less than 1.5 times higher for most of the metals in the eastern lake.Among the metals,only Mn and As had a widespread positive diffuse flux from the pore water to overlying water across the whole lake.The estimated flux in the whole lake was on average 3.36mg/(m2·day)for Mn and 0.08mg/(m2·day)for As,which indicated a daily increase of 0.93μg/L for Mn and 0.02μg/L for As in surface water.The increasing concentration of metals in the sediment and the flux of metals from pore water to overlying water by diffusion and other physical processes should not be ignored for drinking-water sources. | Shengfang Wen Baoqing Shan Hong Zhang | 2012 | Journal of Environmental Sciences2012，24，12： | 11 |
| 6 | Stormwater runoff pollution loads from an urban catchment with rainy climate in China显示文摘 | Liqing LI Baoqing SHAN Chenqing YIN | 2012 | Frontiers of Environmental Science & Engineering2012，6，5： | 10 |
| 7 | Application of fish index of biological integrity(FIBI) in the Sanmenxia Wetland with water quality implications显示文摘Long-term changes of fish biotic integrity in the Sanmenxia Wetland,North China,since the 1950 s were assessed using the fish index of biological integrity(FIBI). The water and sediment quality was evaluated by the water quality index(WQI) and sediment pollution index(SPI). The results showed that FIBI continuously decreased from 46 to 20 during the past 5 decades,which indicated that the fish community state shifted from fair to very poor conditions,and damming by itself did not affect the fish biotic integrity. At the same time,WQI fell from 83 to 44.1,and SPI increased from 0.99 to 2.14 since the 1960 s,resulting from fast regional socio-economic development and insufficient wastewater treatment. Correlation analysis suggested that water quality significantly affected biotic integrity(r = 0.867,p < 0.05) through direct effects on the fish community. As a representative example of many wetlands in North China,our study clearly demonstrated that the biological integrity was degraded,induced both by water quality deterioration and sediment pollution,further driven by the contradiction between rapid development of regional economy and lagging development of sewage treatment facilities,which were thought to be the main factor responsible for the degradation of biological integrity. | Hong Zhang Baoqing Shan Liang Ao | 2014 | Journal of Environmental Sciences2014，26，8： | 6 |
| 8 | Effectiveness of vegetation on phosphorus removal from reclaimed water by a subsurface flow wetland in a coastal area显示文摘This work was conducted to evaluate the effectiveness and influence factors of vegetation on phosphorus (P) removal from reclaimed water in constructed wetlands.Comparisons were conducted between one pilot scale subsurface flow wetland (P-SSFW) and two demonstration subsurface flow wetlands,which were series-wound and named as first subsurface flow wetland (F-SSFW),and second subsurface flow wetland (S-SSFW),respectively.The three wetlands had the same vegetation and substrate,but different pH values,total dissolved solids (TDS) and P loads.Results showed that the P content in the vegetation shoots of the F-SSFW was 2.16 mg/g,while 2.31 mg/g in the S-SSFW and 2.69 mg/g in the P-SSFW.These differences were likely caused by the higher pH and TDS in the reclaimed water.The P content also differed among the tissues of the plant,which were 5.94-6.44 mg/g,2.20-2.77 mg/g,1.31-1.46 mg/g and 1.53-1.88 mg/g in the flowers,leaves,stems,and roots,respectively.The greatest discrepancy was observed in the leaves,indicating that the environment of the wetlands had the greatest influence on the leaves.When the total phosphorus (TP) load was lower,the proportion of P removed by vegetation assimilation was 16.17% in the P-SSFW,12.90% in the F-SSFW and 13.29% in the S-SSFW.However,the relative removal efficiency by vegetation among the three wetlands did not vary greatly from that observed in other studies.Moreover,the influence of pH,TDS and TP load was not as great as the influence of the vegetation species,type of substrate,influent style or climate. | Baoqing Shan Liang Ao Chunming Hu Jiayu Song | 2011 | Journal of Environmental Sciences2011，23，10： | 6 |
| 9 | Age-related white matter degradation rule of normal human brain: the evidence from diffusion tensor magnetic resonance imaging显示文摘 | Zhang Xiang Li Baoqing Shan Baoci | 2014 | Chinese Medical Journal2014，，3： | 5 |
| 10 | Effect of periphyton community structure on heavy metal accumulation in mystery snail(Cipangopaludina chinensis):A case study of the Bai River,China显示文摘The ratio of metal:P stoichiometry was used to identify the accumulation pathways of heavy metals(V,Cr,Co,Ni,Cu,Cd,and Pb) from periphyton to snails Cipangopaludina chinensis Gray(C.chinensis) in the Bai River watershed.The results showed that periphyton communities were mainly composed of two types of algae,filamentous green algae and unicellular diatoms.The proportion of unicellular diatoms in the periphyton community is a key factor that influences metal accumulation in C.chinensis.The V,Cr,Co,Ni,and Cd content of C.chinensis increased steadily as the corresponding metal content of periphyton increased,but Cu and Pb in the snail did not increase in the periphyton.Mechanisms of V,Cr,and Ni accumulation were found to be related to the proportion of diatoms,while Cd and Pb accumulation were dependent on the physiological characteristics of C.chinensis.The accumulation of Cu in C.chinensis was closely related to their grazing behavior.The metal:P stoichiometry revealed that Cr,Ni,and Cd can reduce the potential ecological risks associated with increased P inputs to the ecosystem.V and Co were considered to be relatively safe,regardless of the periphyton P content.Finally,Pb may not be prone to transfer to higher trophic levels,and may pose the lowest ecological risks of the studied heavy metals,but Cu can cause potential ecological risks when eutrophication has occurred. | Jingguo Cui Baoqing Shan Wenzhong Tang | 2012 | Journal of Environmental Sciences2012，24，10： | 3 |
| 11 | Development and preliminary application of a method to assess river ecological status in the Hai River Basin,north China显示文摘The river ecosystem in the Hai River Basin(HRB), an important economic region in China, is seriously degraded. With the aim of river restoration in the HRB, we developed a method to assess the river’s ecological status and conducted a preliminary application of the method.The established method was a predictive model, which used macroinvertebrates as indicator organisms. The river’s ecological status was determined by calculating the ratio of observed to expected values(O/E). The method included ecoregionalization according to natural factors, and the selection of reference sites based on combinations of habitat quality and macroinvertebrate community. Macroinvertebrate taxa included Insecta,Crustacea, Gastropoda, and Oligochaeta, with 39 families and 95 genera identified in the HRB. The HRB communities were dominated by pollution tolerant taxa, such as Lymnaeidae, Chironomus, Limnodrilus, Glyptotendipes, and Tubifex. The average Shannon–Wiener index was 1.40 ± 0.5, indicating a low biodiversity. In the river length of 3.31 × 10~4 km, 55% of the sites were designated poor, with a bad ecological status. Among nine secondary river systems, Luan and Zi-ya had the best and worst river conditions,respectively. Only 17 reference site groups were selected for river management in the 41 ecoregions examined. This study lays the foundation for river restoration and related research in the HRB, and we anticipate further developments of this novel method. | Baoqing Shan Yuekui Ding Yu Zhao | 2016 | Journal of Environmental Sciences2016，28，1： | 2 |
| 12 | Heavy metal sources and associated risk in response to agricultural intensification in the estuarine sediments of Chaohu Lake Valley, East China显示文摘 | Wenzhong Tang Baoqing Shan Hong Zhang Zhanpo Mao | 2009 | Journal of Hazardous Materials2009，，1： | 2 |
| 13 | Phosphorus release: A biogeochemical insight from a restored lakeside wetland in the Yangtze-Huaihe region, China显示文摘The heavy intensification of agriculture in East China since the 1980s caused the decrease of lake area and water storage capacity with impediment of regulation, lake eutrophication and frequent floods. Many restoration projects have been conducted. However, the knowledge of biogeochemical factors that drive nutrient cycles during the early stage of restoration is still limited. We studied the effect of the remediation of a patch of near-shore shallow wetland on the northern bank of Chaohu Lake in the Yangtze-Huaihe region, China, which was used as rice paddy for many years, on the behavior of phosphorus. Redox potential (ORP), temperature and dissolved oxygen were monitored in situ from May 2006 to November 2007. Samples of soil pore water were collected during this time for the determination of different forms of iron and phosphorus. ORP showed a clear transition of the wetland soil from an oxidized state in winter to a reduced state in summer. The decrease of ORP correlated with the release of large amounts of Fe and P. The maxima of total dissolved Fe and total dissolved P in the summer of the second year were (13.8 ± 6.8) mg/L and (0.88 ± 0.27) mg/L, respectively. It is worth noticing that P concentration far exceeded the critical value of lake eutrophication (0.02 mg/L). The pressure of P release to the adjacent lake during the first two years of wetland restoration from rice fields should be taken into account by environmental policy makers. | Xiaoling Zhou, Baoqing Shan, Hong Zhang State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. | 2010 | Journal of Environmental Sciences2010，22，3： | 2 |
| 14 | Limitation of spatial distribution of ammonia-oxidizing microorganisms in the Haihe River, China, by heavy metals显示文摘The Haihe River is characterized by high ammonia pollution. Therefore, it is necessary to determine how environmental factors, such as heavy metals in the river limit the spatial distribution of ammonia-oxidizing microorganisms. In this study, the relationships between five heavy metals and ammonia-oxidizing microorganisms were studied. The results showed that under high ammonia, low oxygen and high concentrations of suspended particles, ammonia-oxidizing bacteria(AOB) ranged from 101:3 to 104:8 gene copies/mL and ammonia-oxidizing archaea(AOA) ranged from 102:7 to 104:9 gene copies/mL. The average metal concentrations in water were 23.57(Cr), 21.58(Ni), 65.09(Cu), 622.03(Zn) and 10.16(As) μg/L, with those of Zn, Cu and Cr being higher than the US EPA criteria. Scatter plots of microbial abundance and metals indicated that both AOA and AOB were limited by heavy metals, but in different ways. As had an inhibitory effect on AOB, while Ni and Zn promoted AOA, and the other metals investigated showed no significant correlation with microbial abundance. Overall, our results indicated that the effects of heavy metals on ammonia-oxidizing microorganisms in water are complex, and that the final effect is determined by the physiological role of each element in the microorganisms, as well as environmental conditions such as complexation of organic matter, not simply the total metal concentration. | Chao Wang Baoqing Shan Hong Zhang Yu Zhao | 2014 | Journal of Environmental Sciences2014，26，3： | 2 |
| 15 | Historical records of heavy metal accumulation in sediments and the relationship with agricultural intensification in the Yangtze-Huaihe region,China显示文摘 | ZHANG Hong SHAN Baoqing | 2008 | Science of the Total Environmmnt2008，399，123： | 1 |
| 16 | Transport and retention of phosphorus pollutants in the landscape with a traditional, multipond system 显示文摘 | Shan Baoqing Yin Chengqing Li Guibao | 2002 | Water Air and Soil Pollution2002，139，： | 1 |
| 17 | Transport and retention of phosphorus pollutants in the landscape with a traditional, multipend system 显示文摘 | Shan Baoqing Y in Chengqing Li Guibao | 2002 | Water Air and Soil Pollution2002，139，14： | 1 |
| 18 | Heavy metal sources and associated risk in response to agricultural intensification in the estuarine sediments of Chaohu Lake Valley, East China显示文摘 | TANG Wenzhong SHAN Baoqing ZHANG Hong | 2010 | J Hazard Mater2010，176，1： | 1 |
| 19 | Historical distribution and partitioning of phosphorus in sediments in an agricultural watershed in the Yangtze-Huaihe region, China 显示文摘 | ZHANG Hong SHAN Baoqing | 2008 | Environ Sei Technol2008，42，7： | 1 |
| 20 | Determining cadmium bioavailability in sediment profiles using diffusive gradients in thin films显示文摘Cadmium(Cd)uptake by plants or benthic organisms largely depends on its bioavailability in sediments,so it is necessary to understand Cd bio availability for determining its ecological risks in riverine sediments.Pore water is easily disturbed during sample collection,indicating that there was a shortage of traditional methods for investigating Cd bio availability.Here,sediment cores were collected from rivers,after which sequential extraction and diffusive gradients in thin films(DGT)method were employed to determine Cd potential bio availability in the sediments and pore water.We found that Cd concentrations measured by DGT were lower than that in pore water profiles,and Cd distribution in various fractions changed remarkably.Pearson correlation analysis showed significant positive correlations between Cd concentrations measured by DGT and total Cd concentrations(r^2=0.76),exchangeable and weak acid soluble fraction(r^2=0.68),ferromanganese fraction(r^2=0.72)and bound organic matter or oxidizable fraction(r^2=0.54).However,the correlation was relatively low between Cd concentrations measured by DGT and that in pore water profiles(r^2=0.26).These results demonstrated that DGT method could provide more accurate information of Cd bio availability in sediment profiles than traditional methods. | Zhixin Song Gangfu Song Wenzhong Tang Dandan Yan Minghai Han Baoqing Shan | 2020 | Journal of Environmental Sciences2020，32，5： | 1 |
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