Article
Engineering, Environmental
Ehui Tan, Ting-Chang Hsu, Wenbin Zou, Xiuli Yan, Zhixiong Huang, Bin Chen, Yongkai Chang, Zhenzhen Zheng, Liwei Zheng, Min Xu, Li Tian, Shuh-Ji Kao
Summary: The study reveals that sedimentary denitrification is the main nitrogen removal pathway in estuarine environments, with a minor contribution from anammox. Estuarine sediments play a relatively weak role in eliminating nitrogen input, while the excess nitrogen from rivers will eventually be removed through various biological processes.
Article
Environmental Sciences
Cheng Chen, Guoyu Yin, Lijun Hou, Min Liu, Yinghui Jiang, Dongsheng Zheng, Dengzhou Gao, Cheng Liu, Yanling Zheng, Ping Han
Summary: This study investigated the effects of sulfamethoxazole (SMX) at near in situ concentration on nitrogen removal processes coupled with nitrification. The results demonstrated that SMX significantly decreased nitrogen removal rates, increased N2O production, and nitrite accumulation. The inhibition of nitrogen transformation functional genes by SMX was more pronounced in heterotrophic denitrification processes.
ENVIRONMENTAL POLLUTION
(2021)
Article
Ecology
Haoping Wu, Beibei Hao, Qichao Zhou, Ke Xu, Yanpeng Cai, Guihua Liu
Summary: The study found that sediment N-removal rates in the Chuanfang River increased along the river reach, accompanied by improvements in water quality, sediment fertility, and submerged vegetation. Comprehensive analysis indicated positive effects of water physicochemical properties, sediment characteristics, and submerged vegetation on N-removal rates, but water nutrients were identified as a limiting factor.
ECOLOGICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Yuanyuan Miao, Liang Zhang, Deshuang Yu, Jianhua Zhang, Wenke Zhang, Guocheng Ma, Xinchao Zhao, Yongzhen Peng
Summary: Intermittent aeration is an effective strategy for biological wastewater treatment, allowing for advanced nitrogen removal and reduced energy consumption. It is suitable for partial nitrification and denitrification processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Naveen Chand, Kapil Kumar, Surindra Suthar
Summary: The study demonstrated that intermittent aeration in VFCWs significantly improved the removal efficiency of COD, NH4+-N, NO3-N, and TP compared to non-aerated setups, while setups with biochar (BC) addition and plantation were more advantageous in nutrient removal than those without BC. Moreover, the COD/N ratio of wastewater did not have a significant impact on VFCWs with BC and intermittent aeration, indicating the effectiveness of slow adsorption and fast aerobic degradation processes.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Agricultural Engineering
Fengyuan Zhang, Quan Feng, Ying Chen, Xiaoshuang Shi, Kang Qin, Mingyi Lu, Fan Qin, Shanfei Fu, Rongbo Guo
Summary: Magnetic microparticles can promote nitrification and denitrification in wastewater treatment, facilitate EPS production, and act as a pH buffer in aerobic conditions, thus enhancing nitrogen removal efficiency.
BIORESOURCE TECHNOLOGY
(2022)
Article
Electrochemistry
Dan Chen, Xiaoyu Zhang, Hanwen Chen, Hefei Shi, Xinbai Jiang, Yang Mu, Deepak Pant, Weiqing Han, Xiuyun Sun, Jiansheng Li, Jinyou Shen, Lianjun Wang
Summary: An integrated bioelectrophotocatalytic system was developed for simultaneous removal of pyridine and denitrification. The system showed excellent stability, photo-electrochemical and catalytic activity, achieving complete removal of pyridine and high TOC removal efficiency. Simultaneous nitrification and denitrification were realized through ammonia diffusion and external circuit for enhanced denitrification.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Environmental
Xingyu Jiang, Changqing Liu, Jian Cai, Yang Hu, Keqiang Shao, Xiangming Tang, Yi Gong, Xiaolong Yao, Qiujin Xu, Guang Gao
Summary: This study investigates the modulation of denitrification and DNRA rates by gene abundances and environmental factors in eutrophic lakes. The results indicate that denitrification rates increase with eutrophication, while DNRA rates do not. The nitrification process provides ample nitrate for denitrification, and certain microbial genera are responsible for these processes. Further eutrophication indirectly affects denitrification and DNRA rates through modulation of N-cycling microbe gene abundances.
Article
Engineering, Environmental
Saurabh Mishra, Virender Singh, Liu Cheng, Abid Hussain, Banu Ormeci
Summary: The present study provides a comprehensive review of biological nitrogen removal (BNR) technologies, including both conventional and emerging methods. The study covers mechanisms, operational parameters, efficacies, and process control strategies, as well as recent developments, challenges, and ongoing research trends. Additionally, the economic aspects of BNR processes are evaluated to assess their feasibility in wastewater treatment plants of different capacities.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Soil Science
Nadine Loick, Elizabeth Dixon, G. Peter Matthews, Christoph Mueller, Veronica S. Ciganda, Maria Lopez-Aizpun, Miguel A. Repullo, Laura M. Cardenas
Summary: This study quantifies the production and consumption pathways of N2O in soil using labelled substrate-N, showing the impact of different water filled pore space on N-transformation processes and emissions. The research highlights the importance of heterotrophic nitrification and denitrification in the N2O emissions, demonstrating the complex relationship between water filled pore space and nitrogen transformations.
Article
Environmental Sciences
Yongkai Chang, Guoyu Yin, Lijun Hou, Min Liu, Yanling Zheng, Ping Han, Hongpo Dong, Xia Liang, Dengzhou Gao, Cheng Liu
Summary: This study investigated the rates of denitrification and anammox in coastal sediments off the north East China Sea, finding that nitrate was a critical factor influencing the ratio between coupled and uncoupled nitrogen removal, and that ammonia oxidizing bacteria may play an important role in the coupled nitrification-denitrification process. These results emphasize the importance of nitrification in nitrogen removal in coastal ecosystems.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Engineering, Environmental
Lei Yang, Shen Cui, Yong-Xiang Ren, Lin-Kai Guo, Huan-Huan Liu, Zhi-Hao Zhang, Li-Xin Tu, Jia Wang, Xiao-Tong Li
Summary: Pseudomonas aeruginosa YL isolated from activated sludge showed high-efficiency simultaneous nitrification and denitrification abilities, with strong flocculation and sedimentation performance. Its denitrification pathway was proposed as a sequential heterotrophic nitrification-aerobic denitrification process, indicating good potential for treating ammonium-rich wastewater.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Engineering, Environmental
Bingtang Li, Meiling Bao, Yuxue Liu, Long Cheng, Baihui Cui, Zhiquan Hu
Summary: This study evaluated a novel shortcut biological nitrogen removal method using activated sludge-biofilm coupled with microalgae, achieving high nitrogen removal efficiency and potential to lower operating costs. The algal-bacterial symbiosis improved species richness but reduced microbial diversity of the biofilm, with significant contributions from Nitrosomonas and Thauera in the nitrogen removal process. Additionally, the study indicated that algae and activated sludge coupling increased nitrous oxide emission in the shortcut nitrogen removal process.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Yangjie Li, Haiyan Jin, Jianfang Chen, Dongqi Wang, Zhi Yang, Bin Wang, Yanpei Zhuang, Rong Wang
Summary: The study found that denitrification processes in the sediments of the Yangtze Estuary and East China Sea play a significant role in reducing total nitrogen, with key environmental factors such as sediment grain size, sediment organic carbon content, and total nitrogen content controlling the process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Yinghui Jiang, Guoyu Yin, Ye Li, Lijun Hou, Min Liu, Cheng Chen, Dongsheng Zheng, Han Wu, Dengzhou Gao, Yanling Zheng, Ping Han
Summary: The study investigates the effects of salinity on nitrogen transformation processes and N2O emission rates. The results show that saltwater incursion can increase the contribution of heterotrophic denitrification to N2O emission, and under high salinity, nitrification-coupled denitrification becomes the dominant pathway of N2O emission.
BIOLOGY AND FERTILITY OF SOILS
(2023)
Article
Environmental Sciences
Dongsheng Zheng, Guoyu Yin, Min Liu, Lijun Hou, Yi Yang, Xinran Liu, Yinghui Jiang, Cheng Chen, Han Wu
Summary: This study investigated the temporal and spatial patterns of antibiotic resistance genes (ARGs) in estuarine environments in China and their relationships with environmental constraints using metagenomics. The results showed that ARG abundance, richness, and diversity were higher in the dry season and increased with latitude. Human activities and climatic variables were identified as the most important factors influencing the prevalence of ARGs, with temperature being the most significant climate variable. The findings suggest that ARG dynamics in estuarine environments are co-driven by anthropogenic activities and climate.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Dengzhou Gao, Lijun Hou, Min Liu, Yanling Zheng, Guoyu Yin, Yuhui Niu
Summary: Studying N2O production and consumption processes along an intertidal elevation gradient can improve the understanding of N2O dynamics among coastal wetlands. The results showed that N2O emission rates were higher in high tidal zones compared to middle and low tidal zones. Gross N2O production and consumption rates were greater in high and low tidal zones, whereas N2O consumption proportions generally increased from high to low tidal zones. Bacterial denitrification was the dominant pathway, although NH2OH oxidation/fungal denitrification also contributed substantially to N2O production in high tidal flats. Changes in N2O dynamics along the elevation gradient were affected by carbon and nitrogen substrate availabilities as well as the redox environments.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Li Wu, Zhirui An, Jie Zhou, Feiyang Chen, Bolin Liu, Lin Qi, Guoyu Yin, Hongpo Dong, Min Liu, Lijun Hou, Yanling Zheng
Summary: This study reveals the effects of acidification on nitrogen removal processes in estuarine and coastal waters. It shows that denitrification rates decrease while anammox process rates increase under acidified conditions. The study also finds that acidic conditions lead to increased nitrous oxide emissions and altered microbial communities in sediment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Ecology
Zongxiao Zhang, Ping Han, Yanling Zheng, Shuo Jiao, Hongpo Dong, Xia Liang, Dengzhou Gao, Yuhui Niu, Guoyu Yin, Min Liu, Lijun Hou
Summary: Bacteria play a crucial role in regulating the carbon, nitrogen, and sulfur cycles in estuarine intertidal wetlands. This study analyzed the variations in the bacterial community structure, assembly processes, and ecological functions in China's estuarine intertidal wetlands. The results showed significant seasonal variations in the bacterial community, with dispersion limitation identified as a critical factor affecting community assembly. The functional bacterial community structure exhibited a more pronounced latitudinal change than seasonal variability.
Article
Engineering, Environmental
Bolin Liu, Lijun Hou, Yanling Zheng, Zongxiao Zhang, Xiufeng Tang, Tieqiang Mao, Jinzhou Du, Qianqian Bi, Hongpo Dong, Guoyu Yin, Ping Han, Xia Liang, Min Liu
Summary: The study reveals that the rate of dark carbon fixation in intertidal sediments is closely related to the availability of reductive substrates and the sulfide content in sediments. Bacteria harboring the cbbM gene play a dominant role in dark carbon fixation, primarily belonging to the Burkholderia genus. Furthermore, these chemoautotrophic microorganisms may play important roles in the coupled carbon, nitrogen, and sulfur cycles.
Article
Soil Science
Dongyao Sun, Xiufeng Tang, Jun Li, Min Liu, Lijun Hou, Guoyu Yin, Cheng Chen, Qiang Zhao, Uli Klumper, Ping Han
Summary: The study evaluated the impact and specificity of various specific nitrification inhibitors on comammox Nitrospira in pure and mixed cultures. It was found that chlorate specifically inhibited the ammonia and nitrite oxidation activity of comammox Nitrospira, allowing for the quantification of comammox activity in wetlands and providing insights into the ecological roles of comammox bacteria in coastal environments.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Engineering, Environmental
Xia Liang, Baoli Wang, Dengzhou Gao, Ping Han, Yanling Zheng, Guoyu Yin, Hongpo Dong, Yali Tang, Lijun Hou
Summary: This study quantitatively assessed the contributions of nitrification and denitrification to nitrous oxide (N2O) production in a eutrophic lake. The results showed that denitrification accounted for approximately 90% of the lake's N2O production during summer and autumn, with a significant portion being simultaneously eliminated through N2O reduction. Surprisingly, nitrification acted as a key process promoting N2O production and contributing to the lake as a source of N2O emissions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Soil Science
Shuntao Chen, Dengzhou Gao, Jinbo Zhang, Yanling Zheng, Xiaofei Li, Hongpo Dong, Guoyu Yin, Ping Han, Xia Liang, Min Liu, Christoph Mueller, Lijun Hou
Summary: This study investigated the spatial changes in gross nitrogen transformation rates and related functional gene abundances in the intertidal zone of the Yangtze Estuary. The results suggest that gross nitrogen transformation rates vary significantly in estuarine and intertidal wetlands, with higher rates observed in freshwater and low-salinity areas. Sedimentary total organic carbon, nitrite, ferrous iron, and microbial functional gene abundances jointly mediate the gross nitrogen transformations. This research provides a better understanding of nitrogen cycling and management strategies in estuarine and coastal environments.
Article
Engineering, Environmental
Ye Li, Ye Huang, Lina Yuan, Yue He, Guoyu Yin, Tianhao He, Erkai He, Fangfang Ding, Haibin Xia, Haoran Xu, Min Liu, Shu Tao
Summary: The deposition of PAHs has significant impacts on Earth's surface system and human health. However, the understanding of PAHs' deposition in highly urbanized areas is limited due to data limitations and low resolution of current models. This research establishes a deposition map of PAHs in Shanghai, China, with a resolution of 2 x 2 km. The results show that the downtown area of Shanghai has the highest PAHs deposition, which is 4.3 times higher than that in the outlying areas. Wet deposition dominates in Shanghai, accounting for 77% of the area and 62% of the total deposition. The deposition of PAHs follows a seasonal trend of summer>fall>spring>winter, similar to rainfall patterns. Built-up land and human activities are identified as key driving factors of PAHs' deposition in Shanghai.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Geography, Physical
Lijun Hou, Dengzhou Gao, Yanling Zheng, Xiaofei Li, Guoyu Yin, Hongpo Dong, Xia Liang, Min Liu
Summary: This study summarizes the development of techniques and approaches for determining nitrogen cycling processes and nitrous oxide sources in aquatic environments in China. The authors also review the main nitrogen transformation processes and associated biogeochemical controls in various aquatic environments. The results suggest that while nitrogen cycling processes have been studied extensively, more comprehensive analyses are needed to project nitrogen fates and dynamics in response to changing environments. The authors argue for the incorporation of microbial traits into biogeochemical ecosystem modeling to improve the estimation reliability of nitrogen cycling and nitrous oxide dynamics.
PROGRESS IN PHYSICAL GEOGRAPHY-EARTH AND ENVIRONMENT
(2022)
Article
Engineering, Environmental
Feiyang Chen, Yuhui Niu, Zhirui An, Li Wu, Jie Zhou, Lin Qi, Guoyu Yin, Hongpo Dong, Xiaofei Li, Dengzhou Gao, Min Liu, Yanling Zheng, Lijun Hou
Summary: Tidal-induced shifts of n-DAMO activity and associated contribution to mitigating CH4 in intertidal wetlands were studied. The study found that the wetting-drying events caused by tidal cycling had significant effects on the abundance and activity of n-DAMO microbial communities. The presence of n-DAMO bacteria and archaea and their higher biodiversity under reflooded conditions were also observed. Structural equation modeling and correlation analysis indicated that n-DAMO activity was influenced by microbial abundance, substrate availability, and salt accumulation in sediment. This study provides valuable insights into accurately estimating CH4 emissions from intertidal wetlands under different tidal scenarios.
Article
Multidisciplinary Sciences
Dongsheng Zheng, Guoyu Yin, Min Liu, Lijun Hou, Yi Yang, Thomas P. Van Boeckel, Yanling Zheng, Ye Li
Summary: This study conducted a global analysis of soil samples and found that agricultural habitats had higher abundance of soil antibiotic resistance genes (ARGs). The soil ARGs were mainly carried by clinical pathogens and gut microbes, and their abundance was influenced by climatic and anthropogenic factors. By creating a global map of soil ARG abundance, the study identified hot spots of soil antibiotic resistance in India, East Asia, Western Europe, and the United States, highlighting the health threats posed by clinical pathogens carrying ARGs and providing important information for global control of soil antibiotic resistance.
Article
Geosciences, Multidisciplinary
Shuntao Chen, Dengzhou Gao, Xiaofei Li, Dongyao Sun, Yanling Zheng, Hongpo Dong, Xia Liang, Guoyu Yin, Ping Han, Min Liu, Lijun Hou
Summary: This study assessed the potential activity of nitrate and ferric iron reduction and microbial diversity in coastal wetlands of China. The results showed higher activity in subtropical regions compared to temperate regions, with sediment characteristics and geographical factors having an indirect effect on the process.
Article
Biodiversity Conservation
Lin Qi, Yanling Zheng, Lijun Hou, Bolin Liu, Jie Zhou, Zhirui An, Li Wu, Feiyang Chen, Zhuke Lin, Guoyu Yin, Hongpo Dong, Xiaofei Li, Xia Liang, Min Liu
Summary: The study investigates the effect of temperature on the activity of chemoautotrophs in estuarine and coastal waters. The findings show that the response of dark carbon fixation (DCF) to temperature varies, with offshore sites being more vulnerable to global warming. The study also reveals the dominant pathways of chemoautotrophic carbon fixation in different areas, highlighting the importance of incorporating DCF thermal response into biogeochemical models.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
