Article
Environmental Sciences
Rui Chen, Jiaxing Liu, Guoyu Ding, Fumin Ren, Rongguang Shi, Jungang Lv, Jing Cheng
Summary: This study developed new binding gels for the rapid and simultaneous quantification of bioavailability concentrations of various heavy metals in soils. The SA-PGA gel exhibited the best adsorption properties, and the SA-PGA-DGT device proved to be a reliable tool for this analysis.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Review
Chemistry, Multidisciplinary
Siday Marrugo-Madrid, Marta Turull, Hao Zhang, Sergi Diez
Summary: Determining the concentration of an environmental pollutant may not accurately assess health risks if the pollutant is not bioavailable. Therefore, methods to determine pollutant bioavailability are more relevant for assessing toxicity. The diffusive gradient in thin films (DGT) technique has been used to measure labile compounds in the environment, with advancements in speciation and bioavailability of metals and metalloids.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Analytical
Stefan Wagner, Jakob Santner, Johanna Irrgeher, Markus Puschenreiter, Steffen Happel, Thomas Prohaska
Summary: A method using DGT was developed for accurate quantification of trace-level Sr and Pb concentrations and isotope ratios in soils. The method utilizes a novel PTFE membrane binding layer with high selectivity for Sr and Pb. The study showed that the method performed well under various conditions and selective elution process allowed for purification of Sr and Pb fractions.
ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Darren J. Koppel, Gwilym A. Price, Kathryn E. Brown, Merrin S. Adams, Catherine K. King, Damian B. Gore, Dianne F. Jolley
Summary: Metal contaminants in Antarctic soils show varied concentrations and activities in different extraction agents, while the DGT method can provide environmentally relevant measurements of metal contaminant lability.
Article
Soil Science
Yu Wang, Hao Chen, Lei Wang, Wenbin Zhu, Jiahui Yuan, Deb P. Jaisi, Xu Zhao, Shenqiang Wang
Summary: The study found that iron redox cycling influences the behavior of phosphorus in flooded rice soil. The DGT technique can reveal the in-situ distribution of labile phosphorus and iron near rice roots. Results from field experiments showed a strong positive correlation of DGT-labile P with soil Olsen P and rice total P concentration.
Article
Environmental Sciences
Xiaowen Ji, Jonathan K. Challis, Jenna Cantin, Ana S. Cardenas Perez, Yufeng Gong, John P. Giesy, Markus Brinkmann
Summary: Dynamic processes of organic contaminants in sediments have toxicological implications in aquatic systems. The study used DGT devices to measure the flux and exchange rates of antipsychotic compounds in sandy sediments. The results showed the continuous removal of these compounds from the sediments and their movement to the adjacent sediment solution. A dynamic model was used to determine the rate constants and distribution coefficients of the antipsychotics. The study highlights the importance of understanding the desorption kinetics of contaminants in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Karelys Umbria-Salinas, Astolfo Valero, Monica Wallner-Kersanach, Carlos Ferreira de Andrade, Maria Josefa Santos Yabe, Julio Cesar Wasserman, Katia Naomi Kuroshima, Hao Zhang
Summary: The study assessed seasonal variations in the concentrations of labile fractions of metals in shipyards located in estuarine areas on the Brazilian subtropical coast, indicating shipyards as hotspots of trace metals where Ecological Risk Assessment should be carried out.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Zhihao Wu, Xia Jiang, Junyi Chen, Shuhang Wang, Cheng Yao
Summary: This research used DGT assemblies with different binding layers to study the mobility of N and P in sediments in Western Lake Taihu. The results provide important insights into the biogeochemical processes and nutrient release in lakes, which are crucial for effective nutrient management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Geochemistry & Geophysics
Zhihao Wu, Xia Jiang, Junyi Chen, Shuhang Wang
Summary: In this study, a passive sampling technique called diffusion gradients in thin films (DGT) was used to investigate the biogeochemical behaviors and dynamic transfer of PO4-P, NH4-N, and NO3-N in sediments of Lake Hulun in China. Based on the analysis of DGT concentration profiles and redox status, it was found that the release of phosphorus (P) is mainly controlled by the reductive dissolution of Mn(IV) or Fe(III) (oxyhydr)oxides, while the release of ammonium (NH4-N) is influenced by denitrification and dissimilatory nitrate reduction. The results of this study provide valuable information for lake pollution control and sediment remediation strategies.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2023)
Article
Biotechnology & Applied Microbiology
Siday Marrugo-Madrid, Claudia Fontas, Gulsah Kurt, Carlos Salazar-Camacho, Manuel Salas-Moreno, Harry Gutierrez-Mosquera, Jose Marrugo-Negrete, Sergi Diez
Summary: In this study, a benzoylthiourea-based diffusive gradient in thin film (DGT) technique was developed for determining bioavailable mercury. The DGT-BTP1 gel showed stable binding capacity and satisfactory extraction performance compared to the well-established DGT-3MFS gel. Field measurements in Quito River demonstrated the effectiveness of DGT-BTP1 in monitoring mercury concentration.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Environmental Sciences
Yuanting Zhu, Guizhou Xu, Xueyao Wang, Xiaowen Ji, Xun Jia, Lin Sun, Xueyuan Gu, Xianchuan Xie
Summary: Chlorophenols (CPs) are considered priority control pollutants due to their high toxicity and wide distribution. The In-situ monitoring technique using diffusive gradients in thin films based on porous beta-cyclodextrin polymers (CDP-DGT) can stably monitor four typical CPs in water and soils. The study shows that the higher the soil organic matter content, the more CPs are distributed in the soil solid phase.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Tianyu Jiang, Tao Yu, Hongbin Qi, Fengyan Li, Zhongfang Yang
Summary: This study found that the application of sulfur and phosphorus can significantly increase the uptake of selenium by pak choi, while high levels of sulfur and phosphorus can also inhibit the absorption of selenium to a certain extent. The bioavailability of selenium in soil is affected by the competitive adsorption of S and P, as well as changes in soil pH.
Article
Environmental Sciences
Zhen Xu, Wen-Xuan Sun, Qing-Qing Li, Ying-Jian Han, Wei-Wei Ma, Tie Li, Mao-Xu Zhu
Summary: This study used in situ, high-resolution diffusive gradient in thin films (DGT) technique and solid-phase speciation to investigate the diagenesis of S, Fe, and P in muddy sediments in the central South Yellow Sea (SYS). The results showed that DIR dominated Fe reduction, and the sulfate reduction rate was generally low. The positive correlation between porewater Fe and DIP suggested that DIP release was primarily driven by DIR. The benthic flux of DIP from muddy sediments was found to have a minor impact on the P budget in the sea.
Article
Environmental Sciences
Rui Chen, Qi Wang, Fumin Ren, Guoyu Ding, Rongguang Shi, Jing Cheng, Xuying Cai, Nuo Cheng, Jiaxing Liu, Lanxin Li
Summary: A new diffusive gradient in thin films (SA-PGA-DGT) device was developed using sodium alginate-polyglutamic acid, with high adsorption capacity for labile Cd in soil. The device showed stability and reliability in analyzing labile Cd under various soil conditions, with strong correlation to traditional measurement methods.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Yang-Guang Gu, Hong-Hui Huang, Shi-Jun Jiang, Xiu-Yu Gong, Xiu-Li Liao, Ming Dai
Summary: This study assesses the integrated toxicity of mercury species mixtures in sediment using the DGT technique in Daya Bay. The results indicate that both inorganic mercury and methyl mercury in the sediments exceed the risk threshold and have adverse effects on aquatic biota. However, the probabilistic biological risk assessment shows that the toxicity probability in Daya Bay's sediments is low.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Qin Sun, Jing Chen, Hao Zhang, Shiming Ding, Zhu Li, Paul N. Williams, Hao Cheng, Chao Han, Longhua Wu, Chaosheng Zhang
ANALYTICAL CHEMISTRY
(2014)
Editorial Material
Engineering, Environmental
Chaosheng Zhang, Olle Selinus, Andrew S. Hursthouse, Xinghui Xia, Shiming Ding
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2013)
Article
Engineering, Environmental
Shiming Ding, Di Xu, Qin Sun, Hongbin Yin, Chaosheng Zhang
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2010)
Article
Engineering, Environmental
Shiming Ding, Fei Jia, Di Xu, Qin Sun, Lei Zhang, Chengxin Fan, Chaosheng Zhang
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2011)
Article
Engineering, Environmental
Shiming Ding, Qin Sun, Di Xu, Fei Jia, Xiang He, Chaosheng Zhang
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2012)
Article
Engineering, Environmental
Di Xu, Yifei Chen, Shiming Ding, Qin Sun, Yan Wang, Chaosheng Zhang
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2013)
Article
Environmental Sciences
Qin Sun, Yifei Chen, Di Xu, Yan Wang, Shiming Ding
JOURNAL OF ENVIRONMENTAL SCIENCES
(2013)
Article
Environmental Sciences
Shiming Ding, Di Xu, Xiuling Bai, Shuchun Yao, Chengxin Fan, Chaosheng Zhang
JOURNAL OF ENVIRONMENTAL SCIENCES
(2013)
Article
Environmental Sciences
Di Xu, Shiming Ding, Bin Li, Xiuling Bai, Chengxin Fan, Chaosheng Zhang
JOURNAL OF ENVIRONMENTAL SCIENCES
(2013)
Article
Environmental Sciences
Di Xu, Shiming Ding, Bin Li, Fei Jia, Xiang He, Chaosheng Zhang
JOURNAL OF SOILS AND SEDIMENTS
(2012)
Article
Environmental Sciences
Di Xu, Shiming Ding, Qin Sun, Jicheng Zhong, Wei Wu, Fei Jia
SCIENCE OF THE TOTAL ENVIRONMENT
(2012)
Article
Environmental Sciences
Di Xu, Wei Wu, Shiming Ding, Qin Sun, Chaosheng Zhang
SCIENCE OF THE TOTAL ENVIRONMENT
(2012)
Article
Environmental Sciences
Ziyan Feng, Chengxin Fan, Weiyi Huang, Shiming Ding
SCIENCE OF THE TOTAL ENVIRONMENT
(2014)
Article
Environmental Sciences
Qin Sun, Yu Yao, Di Xu, Shiming Ding, Chaosheng Zhang
FRESENIUS ENVIRONMENTAL BULLETIN
(2013)