Article
Environmental Sciences
Heon-Jung Kim, Yeongkyoo Kim
Summary: The study found that most trace metals decreased their mobility during the transformation of schwertmannite to goethite, with the exception of lead which increased its mobility. Lead, arsenate, and chromate were well retained in schwertmannite, while elements like cadmium and cobalt had higher exchangeable fractions and were easily released into water.
Article
Environmental Sciences
Linwei Li, Xingxing Cao, Pan Wu, Chujie Bu, Yeye Ren, Kai Li
Summary: The composition and sources of DOM in AMD-disturbed karst rivers were investigated, and the influence of DOM components on the distribution of metal ions was found to be greater than that of TDC and pH. Among the DOM components, humic-like substances had a greater influence than protein-like substances. This study further elucidated the geochemical interactions between DOM and metal ions in AMD-disturbed karst rivers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Qiang Huang, Ye Huang, Bao Li, Xiutong Li, Yuan Guo, Zhen Jiang, Xiaoling Liu, Zhenni Yang, Zengping Ning, Tangfu Xiao, Chengying Jiang, Likai Hao
Summary: Contaminations caused by mine activities can lead to the co-selection of antibiotic resistance genes (ARGs) and heavy metal(loid) resistance genes (MRGs). This study found that the resistome of a coal source acid mine drainage passive treatment system was dominated by multidrug efflux mechanisms and a diverse heavy metal(loid) resistome. The presence of potential pathogens carrying multiple resistance genes may increase the risk of ARG dissemination in the environment.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Yan Pan, Han Ye, Yang Yang, Chengfang Yang, Xiaofei Li, Tengfei Ma, Zhi Dang, Guining Lu
Summary: Long-term accumulation of heavy metals in paddy soils caused by acid mine drainage (AMD) irrigation poses a severe threat to environmental health. This study investigates the retention and mobility mechanisms of Cu and Cd in soil after AMD flooding, and finds that Cd is more mobile than Cu and the soil has a greater adsorption capacity for Cu.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
J. L. Guerrero, I Gutierrez-Alvarez, A. Hierro, S. M. Perez-Moreno, M. Olias, J. P. Bolivar
Summary: The Odiel and Tinto rivers exhibit high concentrations of U-Th isotopes and Po-210 due to acid mine drainage and the presence of phosphogypsum stacks in their basins. These radionuclides show clear seasonal variations, with peaks in November and December, dilution in the winter, and concentration in the spring and summer. Non-conservative behavior of the radionuclides in the estuaries is demonstrated, attributed to precipitation processes caused by pH increase. The PG stacks in the Tinto estuary produce significant radioactive impacts, particularly during the rainy months, increasing the concentration of U-isotopes and Po-210 in the particulate phase.
Article
Geochemistry & Geophysics
Rafael Leon, Francisco Macias, Carlos R. Canovas, Rafael Perez-Lopez, Carlos Ayora, Jose Miguel Nieto, Manuel Olias
Summary: Acid Mine Drainage (AMD) poses a significant threat to water resources globally, but also presents an opportunity for economic valorization of elements. Understanding the distribution of rare earth elements (REE) in AMDs can help identify their market potential. Utilizing the economic potential of AMD-affected regions can improve water quality in abandoned mining sites.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2021)
Article
Water Resources
Sepideh Mali, Hadi Jafari, Reza Jahanshahi, Rahim Bagheri
Summary: Seepage with AMD characteristics is observed in the Dareh-Zar copper mine and a groundwater flow model was established to determine the source of this groundwater. Two distinct groundwater sources were identified and it was found that the recharge zones are at higher elevations than the pit area.
MINE WATER AND THE ENVIRONMENT
(2022)
Review
Engineering, Multidisciplinary
Ifeanyi Michael Smarte Anekwe, Yusuf Makarfi Isa
Summary: Pollution, especially acid mine drainage (AMD) caused by anthropogenic and industrial activities, is a major threat to the ecosystem. This study critically reviews various bioremediation methods for AMD contamination treatment and discusses their challenges and prospects. The research shows that bioremediation has proven effective and environmentally friendly, but large-scale application remains a challenge.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Geochemistry & Geophysics
Zhengbing Zhou, Hanjie Wen, Chuanwei Zhu, Bo Bao, Chongguang Luo, Yuxu Zhang
Summary: This study identifies the sources of cadmium in the Xijiang riverine system in China as natural weathering and acid mine drainage using chemical and isotope analysis. The isotopic fractionation of cadmium is mainly controlled by the composition of acid mine drainage. The study highlights the use of cadmium isotopic fractionation as a tool to distinguish the effects of anthropogenic activities from natural weathering processes in river systems at risk of cadmium pollution.
Article
Environmental Sciences
Yeye Ren, Xingxing Cao, Pan Wu, Linwei Li
Summary: Acid mine drainage (AMD) poses a threat to the water quality and safety of karst river water (KRW), and the formation of secondary iron or aluminum-bearing minerals during the mixing of AMD with KRW plays a crucial role in element migration. However, the variations in the mineralogical, morphological, and elemental compositions of secondary minerals and their influences on element migration have not been systematically studied. This study conducted a laboratory experiment to simulate seasonal hydrological conditions in a river and investigated the distribution of major and trace elements in the mixed water and precipitates and discussed the formation process for secondary minerals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
R. A. Crane, J. Stewart
Summary: This study investigated the efficacy and selectivity of different agents for the dissolution of ecotoxic metal(loid) from ochre waste product. It found that low concentrations of AMD or citric and oxalic acids can selectively dissolve certain ecotoxic metals, while higher concentrations lead to ecotoxic metal precipitation. This suggests potential applications in lowering ecotoxicity of ochre waste and reusing it for AMD remediation.
MINERALS ENGINEERING
(2021)
Article
Environmental Sciences
Baolin Gong, Dejian Li, Zheng Niu, Yun Liu, Zhi Dang
Summary: A new composite passivator named PSPT was fabricated in this study, and appropriate addition of sepiolite particles significantly improved its inhibition ability against pyrite oxidation. However, excessive addition of sepiolite weakened the passivation performance of the coatings. The mechanism of sepiolite particles embedding in PropS-SH network through oxygen bridges was proposed based on characterization results.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Environmental Sciences
Tianhao Du, Anna Bogush, Ondrej Masek, Saul Purton, Luiza C. Campos
Summary: Acid mine drainage (AMD) is a global issue that causes harmful environmental impacts. This study reviewed three bio-based treatment methods using algae, biochar, and bacteria that can be used separately and potentially in combination for effective and sustainable AMD treatment. The review found that all bio-based methods, when applied as a single process and in combination, were effective treatments for AMD and were influenced by various parameters. However, there is a lack of research on the combination of algae-biochar-bacteria as a consortium for AMD treatment.
Article
Chemistry, Physical
Dejian Li, Chenrui Liu, Yun Liu, Xuemin Chen, Weifeng Wu, Feng Li, Jiang Tian, Zhi Dang
Summary: This study utilized eco-friendly natural green polyphenol tannic acid (TA) as a passivator to inhibit pyrite oxidation. Experimental and surface analysis results confirmed the inhibitory effect of TA. The TA passivation coating provided good antioxidant protection for pyrite, and the inhibition ability increased with higher TA concentration.
APPLIED SURFACE SCIENCE
(2022)
Article
Environmental Sciences
Giuseppe Cocomazzi, Giovanni Grieco, Agim Sinojmeri, Alessandro Cavallo, Micol Bussolesi, Elena Silvia Ferrari, Enrico Destefanis
Summary: The aim of this study was to investigate the buffering capacity of CaCO3 on acid mine drainage and the characteristics of the resulting precipitates. The results showed that CaCO3 exhibited good buffering capacity and the precipitates were mainly composed of iron oxyhydroxides, sulfates, and hydrosilicates, with the presence of nanocrystalline and amorphous phases.
Article
Chemistry, Multidisciplinary
Kailun Sun, Jason C. White, Erkai He, Cornelis A. M. Van Gestel, Hao Qiu
Summary: The use of 2D MoS2 nanomaterials is increasing, leading to their release into soils. This study compares the toxicity mechanisms of defect-free and defect-rich MoS2 nanosheets to soil invertebrates using various methods. The results show that MoS2 nanosheets have nanospecific effects and the role of surface defects needs to be considered when evaluating the toxicity of these materials.
Article
Green & Sustainable Science & Technology
Juanjuan Zhou, Dongqin Li, Bingqian Li, Yanwei Liu, Huashou Li, Guikui Chen, Rongliang Qiu
Summary: Water resource shortage and arsenic (As) water pollution pose a threat to human food security. Agricultural production using micro-polluted water can help alleviate water resource shortage after addressing the As problem. In situ generation of hydrous titanium oxide has higher As immobilization potential compared to purchased TiO2 due to its larger specific surface area and more active hydroxyl groups, which can reduce As uptake in aquatic vegetables grown in micro-polluted water.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Xingxing Peng, Tianyu Li, Qihang Zheng, Yingyuan Lu, Yuzhe He, Yetao Tang, Rongliang Qiu
Summary: Hexabromocyclododecane (HBCD) is a persistent organic pollutant widely detected in the environment. A study found that the bacterium Citrobacter sp. Y3 can completely mineralize HBCD and identified several enzymes related to HBCD degradation. Additionally, a functional gene named HBCD-hd-1 was discovered to play a crucial role in HBCD degradation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Yang Liu, Ruicai Zhang, Bo Pan, Hao Qiu, Jing Wang, Junyuan Zhang, Xuekui Niu, Liping He, Wenmin Qian, Willie J. G. M. Peijnenburg
Summary: Metal uptake and distribution in crops vary depending on the metal and crop type. This study compared the uptake and distribution of Hg, As, Zn, Pb, Cd, and Cu in three crops (leafy, fruit, and grain) grown near a copper mining field in Yunnan, China. Leafy crops had a higher propensity to accumulate Hg, As, and Zn, while grain crops had a lower accumulation of Cd and Cu. None of the crops accumulated Pb in their edible tissues. There was no correlation between DTPA-extracted metal concentrations in soil and metal concentrations in crop tissues.
Article
Engineering, Environmental
Hong-Xiang Zheng, Wen-Shen Liu, Dan Sun, Shi-Chen Zhu, Yang Li, Yu-Lu Yang, Ruo-Rong Liu, Hua-Yuan Feng, Xuan Cai, Yue Cao, Guo-Hua Xu, Jean Louis Morel, Antony van der Ent, Lena Q. Ma, Yao-Guang Liu, Elizabeth L. Rylott, Rong-Liang Qiu, Ye-Tao Tang
Summary: Rare earth elements (REEs) are essential for modern technologies, but their production is resource-intensive and environmentally damaging. Certain plants can hyperaccumulate REEs, and understanding the biology behind this phenomenon could help in developing more environmentally friendly REE recovery technologies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Fengping Zhou, Ye Xiao, Meina Guo, Shizhong Wang, Rongliang Qiu, Jean-Louis Morel, Marie-Odile Simonnot, Wei-Xian Zhang, Weihua Zhang, Ye -Tao Tang
Summary: In order to meet the urgent and unprecedented demands for rare earth elements (REEs) in advanced industries, increasing attention has been focused on the recovery of REEs from recycled streams. However, poor separation performance due to nonselectivity is often observed because of the similar geochemical behaviors of REEs and transition metals. This study proposes a unique approach based on the selective transformation between ceria sulfation and iron/manganese mineralization, leading to enhanced selective separation of REEs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yue Wang, Ye Xiao, Yafei Wang, Qingqi Lin, Yanping Zhu, Zhuobiao Ni, Rongliang Qiu
Summary: This study investigated an electroreductive system with a quaternary ammonium surfactant-modified cathode for degrading (E)-perfluoro-(4-methylpent-2-enoic acid) (PFMeUPA) at a low cathodic potential. The removal efficiency of PFMeUPA reached 99.81% and the defluorination efficiency was 78.67% under -1.6 V (vs Ag/AgCl) with the cathode modified by octadecyltrimethylammonium bromide (OTAB). The study also revealed the step-wise degradation pathway of PFMeUPA and the crucial role of quaternary ammonium surfactants in electron transfer and electrocatalytic activities in the electroreductive system.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zining Zhou, Meng Wei, Guangxing Yang, Wengbo Du, Feng Peng, Yueping Fang, Yingju Liu, Shengsen Zhang, Rongliang Qiu
Summary: Modulating the electronic properties of non-noble metal-based catalysts and designing a photoinduced electron-rich surface structure improved the catalytic efficiency of formaldehyde conversion to hydrogen.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Hailan Yang, Rongliang Qiu, Yetao Tang, Shujing Ye, Shaohua Wu, Fanzhi Qin, Ling Xiang, Xiaofei Tan, Guangming Zeng, Ming Yan
Summary: Residual flotation reagents in mineral processing wastewater can pose severe ecological threats when discharged untreated. Metal-free biochar-induced persulfate-advanced oxidation processes (KCBC/PS) efficiently degrade aniline aerofloat (AAF) at low doses of catalyst and oxidant. The dominant reactive oxygen species in the KCBC/PS system is O-2(center dot-), which achieves deep mineralization of AAF. The electron transfer mechanism and active sites play important roles in the KCBC/PS system, allowing for wide pH adaptation and resistance to inorganic anions in real mining wastewater treatment. Carbonyl group is the active site for the non-radical pathway of biochar, while the conversion of SO4 center dot- to superoxide radicals represents a defect. The study also reveals a possible degradation pathway of AAF and its reduced environmental toxicity.
Article
Environmental Sciences
Yu Jiang, Yifei Zhang, Yuanyuan Liang, Wen Liu, Yu Wang, Jiewen Yang, Rongliang Qiu, Hong J. Di, A. Dan
Summary: Soil nanocolloids can act as carriers for antibiotics and facilitate their migration and distribution in soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Engineering, Chemical
Jie Li, Zhuobiao Ni, Yongran He, Siyuan Yang, Qiongzhi Gao, Xin Cai, Yueping Fang, Rongliang Qiu, Shengsen Zhang
Summary: A novel p-type Co3O4/n-type BiOBr heterojunction (COBB) photocatalyst is proposed for the degradation of glyphosate, an organic phosphorus herbicide. The COBB significantly enhances the separation efficiency and transfer rates of photogenerated carriers due to the built-in electric field and synergistic matching band potentials. It demonstrates remarkable activity in degrading glyphosate under simulated sunlight, outperforming pure Co3O4 and BiOBr. The COBB also shows promising performance under natural sunlight and maintains high stability. Toxicity of glyphosate is greatly reduced in the COBB system according to intermediate product and toxicity analyses. This study provides renewed opportunities for the use of heterojunction photocatalysts in natural environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zhan Cen, Zhuobiao Ni, Xiaosong Zhou, Yingju Liu, Yueping Fang, Rongliang Qiu, Shengsen Zhang
Summary: The degradation of the veterinary antibiotic chloramphenicol (CAP) in wastewater can be efficiently achieved by enhancing the mediated electron transfer pathway using a carbon-coated CuCo bimetallic catalyst. This catalyst activates peroxymonosulfate (PMS) to generate reactive oxygen species (ROS) and facilitate CAP degradation. The synergistic effect between the ROS pathway and the mediated electron transfer pathway in the CuCo@C/PMS system significantly enhances the CAP degradation rate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Juanjuan Zhou, Xiaoyang Bi, Leshi Wu, Huashou Li, Junhao Qin, Zemin Zhang, Guikui Chen, Rongliang Qiu
Summary: The accumulation of arsenic in plants can be solved by adding TiOSO4 solution during rice seedling cultivation. This treatment method is more effective than adding TiO2 nanoparticles and commercial HTO, and does not have a negative impact on rice growth.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Shishu Zhu, Yijun Mo, Wendan Luo, Zihan Xiao, Chao Jin, Rongliang Qiu
Summary: Soil dissolved organic matter (SDOM) affects the movement of Cr (hydr)oxides and their potential immobilization. This study found that the composition of SDOM played a significant role in the aggregation and deposition kinetics of different types of Cr species. The molecular composition of SDOM associated with Cr (hydr)oxides was analyzed, revealing the preference of low molecular-weight aromatic compounds for Cr(OH)(3) and high molecular-weight hydrophobic compounds for Cr2O3. The presence of SDOM influenced the stability and mobility of the immobilized Cr species.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Environmental Sciences
Shengsheng Sun, Tenghaobo Deng, Ming Ao, Yijun Mo, Jingjing Li, Ting Liu, Wenjun Yang, Chao Jin, Rongliang Qiu, Yetao Tang
Summary: This study investigates the release of Cr(III) from Fe(oxyhydr)oxides in the presence of organic acids and its main factors. Results show that organic acids enhance the dissolution of Fe(III) and Cr(III), and the extent of dissolution is influenced by pH. The formation of Cr(III)-organic acid colloids is affected by pH and the adsorption of citrate. The study highlights the importance of pH on Cr release behavior and provides insights for evaluating Cr transport and fate in soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(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)