Article
Environmental Sciences
Srinivas Bikkina, Kimitaka Kawamura, Yosuke Sakamoto, Jun Hirokawa
Summary: Oxidation of isoprene can lead to the production of oxalic acid, with methylglyoxal identified as an important intermediate. The relative abundances of methylglyoxal and oxalic acid fluctuate significantly during the reaction, suggesting a complex pathway of oxalic acid formation under dry conditions. The study proposes new reaction schemes for interpreting the ambient SOA composition and highlights the stable character of C-2 towards oxidation by hydroxyl radicals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Qinqin Li, Daocheng Gong, Hao Wang, Yu Wang, Shijie Han, Gengchen Wu, Shuo Deng, Pengfei Yu, Wenlu Wang, Boguang Wang
Summary: Glyoxal and methylglyoxal, intermediate products and precursors of volatile organic compounds in the Tibetan Plateau, may play key roles in photochemical pollution and regional climate change. Anthropogenic emissions are found to be the dominant sources of Gly and Mgly, while solar radiation contributes to their secondary formation. During ozone pollution episodes, local anthropogenic sources and emissions from the southern Himalayas make significant contributions to the levels of Gly and Mgly. This study has important implications for understanding the impact of human activities on air quality and climate change in this ecologically fragile area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yuemeng Ji, Qiuju Shi, Xiaohui Ma, Lei Gao, Jiaxin Wang, Yixin Li, Yanpeng Gao, Guiying Li, Renyi Zhang, Taicheng An
Summary: The study elucidates the fundamental kinetics and mechanisms for aqueous-phase oligomerization of glyoxal, including protonation, nucleophilic addition, and deprotonation. These reactions occur under atmospheric conditions and are dominantly driven by electrostatic attraction, with certain rate limitations.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Multidisciplinary Sciences
Xinqing Lee, Daikuan Huang, Qi Liu, Xueyan Liu, Hui Zhou, Qian Wang, Yuena Ma
Summary: Formic and acetic acids are common in the troposphere, but their budgets are underestimated due to a missing biogenic source. Primary biogenic emissions are important but often undervalued, and long-distance transport indicates lifetimes over 5 days for both acids.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Applied
Selina Brighina, Carlos Poveda Turrado, Cristina Restuccia, Gemma Walton, Biagio Fallico, Maria Jose Oruna-Concha, Elena Arena
Summary: The study found that dicarbonyl compounds remain stable during gastrointestinal digestion and have an impact on gut microbiota, potentially reducing important bacterial populations.
Article
Environmental Sciences
Jie Li, Zhiwei Han, Yele Sun, Jiawei Li, Lin Liang
Summary: A regional air quality model system was developed to investigate the chemical pathways for secondary organic aerosol (SOA) formation in the Beijing-Tianjin-Hebei region in winter. The model showed significant improvement in simulating SOA by including primary S/IVOCs and aqueous reactions, with different volatile organic compounds contributing variably to SOA formation.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yixin Li, Yuemeng Ji, Jiayun Zhao, Yuan Wang, Qiuju Shi, Jianfei Peng, Yuying Wang, Chunyu Wang, Fang Zhang, Yuxuan Wang, John H. Seinfeld, Renyi Zhang
Summary: Experimental results show that the oligomerization of small alpha-dicarbonyls on sub-micrometer aerosols leads to the formation of secondary organic aerosol (SOA) and brown carbon (BrC) more efficiently upon exposure to atmospherically relevant concentrations. Carbenium ion-mediated nucleophilic addition, interfacial electric field-induced attraction, and synergetic oligomerization involving organic/inorganic species are identified as the key mechanisms for the distinct aerosol growth and light absorption in the presence of methylglyoxal.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Lu Lei, Yele Sun, Bin Ouyang, Yanmei Qiu, Conghui Xie, Guiqian Tang, Wei Zhou, Yao He, Qingqing Wang, Xueling Cheng, Pingqing Fu, Zifa Wang
Summary: Vertical measurements of aerosol particle composition in urban Beijing during winter showed significant variations in vertical ratios among different aerosol species, indicating different chemical properties of organic aerosols between ground level and aloft. Moreover, the impacts of vertical changes in meteorology and gaseous precursors on secondary organic aerosol formation were highlighted.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Zhimin Zhang, Wanyu Zhao, Wei Hu, Junjun Deng, Lujie Ren, Libin Wu, Shuang Chen, Jingjing Meng, Chandra Mouli Pavuluri, Yele Sun, Zifa Wang, Kimitaka Kawamura, Pingqing Fu
Summary: Low molecular weight organic compounds are present in the atmosphere and their concentrations in fresh snow were analyzed in this study. The study found high levels of total dicarboxylic acids in the snow samples, with oxalic acid being the main component. Elevated levels of phthalic acid in snow from certain regions suggest emissions from vehicular exhausts and fossil fuel combustion sources.
ENVIRONMENTAL POLLUTION
(2021)
Article
Biochemistry & Molecular Biology
Katarzyna Bednarska, Izabela Fecka, Jean L. J. M. Scheijen, Sanne Ahles, Philippe Vangrieken, Casper G. Schalkwijk
Summary: The aim of this study was to evaluate the effect of a citrus and pomegranate complex (CPC) on a-DCs plasma levels. The results showed that CPC supplementation can reduce the concentration of MGO, which may help mitigate MGO-related conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Minxia Shen, Kin Fai Ho, Wenting Dai, Suixin Liu, Ting Zhang, Qiyuan Wang, Jingjing Meng, Judith C. Chow, John G. Watson, Junji Cao, Jianjun Li
Summary: Biomass burning is a significant source of dicarboxylic acids in the atmosphere, with oxalic acid becoming dominant after aging. The conversion of volatile organic compounds to dicarboxylic acids is completed within 2 days, indicating a short residence time. The isotopic composition of dicarboxylic acids becomes heavier during aging, suggesting further atmospheric degradation processes for longer aging times.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Wenfei Zhu, Song Guo, Zirui Zhang, Hui Wang, Ying Yu, Zheng Chen, Ruizhe Shen, Rui Tan, Kai Song, Kefan Liu, Rongzhi Tang, Yi Liu, Shengrong Lou, Yuanju Li, Wenbin Zhang, Zhou Zhang, Shijin Shuai, Hongming Xu, Shuangde Li, Yunfa Chen, Min Hu, Francesco Canonaco, Andre S. H. Prevot
Summary: The study conducted experiments on secondary organic aerosol (SOA) formation from urban cooking and vehicular sources using a high-resolution time-of-flight aerosol mass spectrometer. Results showed that cooking styles had a greater impact on aged COA mass spectra than oxidation conditions, while oxidation conditions significantly affected aged HOA spectra more than vehicle operating conditions. Mass spectra similarity analysis and positive matrix factorization were used to establish the POA and SOA mass spectra of these sources, and the improved ME-2 model better quantified the contribution of POA and SOA from cooking and vehicular sources compared to traditional ambient PMF results. This work established the vehicle and cooking SOA source profiles for the first time and can be further used in OA source apportionment in the ambient atmosphere.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Brock Peake, Maulik Ghetia, Cobus Gerber, Maurizio Costabile, Permal Deo
Summary: Glycation is a non-enzymatic reaction that leads to the formation of advanced glycation end products (AGEs), with reactive oxygen species having detrimental effects on proteins. Certain fatty acids, such as arachidonic, eicosapentaenoic, and docosahexaenoic acids, have been shown to decrease protein-bound fluorescent AGEs. Saturated fatty acids decrease the production of N-epsilon-carboxymethyllysine (CML) and N-epsilon-carboxyethyllysine (CEL) while increasing methylglyoxal-derived hydroimidazolone (MG-H1).
Article
Environmental Sciences
Barbara Bertozzi, Robert Wagner, Junwei Song, Kristina Hoehler, Joschka Pfeifer, Harald Saathoff, Thomas Leisner, Ottmar Moehler
Summary: The study investigated the ice nucleation ability of internally mixed particles composed of crystalline ammonium sulfate (AS) and secondary organic material (SOM) at temperatures between -50 and -65 degrees C. The results show that the ice nucleation ability of mixed AS / SOM particles is strongly dependent on particle morphology. Further research is needed to investigate the impact of atmospheric aging and cloud processing on the morphology and related ice nucleation ability of internally mixed particles.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Jianing Liu, Shengzhen Zhou, Zhimin Zhang, Kimitaka Kawamura, Wanyu Zhao, Xuemei Wang, Min Shao, Fan Jiang, Junwen Liu, Xi Sun, Jian Hang, Jun Zhao, Chenglei Pei, Jingpu Zhang, Pingqing Fu
Summary: This study investigated the vertical profiles of dicarboxylic acids and related organic compounds (DCRCs) in PM2.5 at different altitudes near the Canton Tower in Guangzhou, China. The results showed higher concentrations of DCRCs at 488 m above ground level compared to ground level, indicating a higher degree of aerosol aging at higher altitude. The abundance of DCRCs was influenced by air masses from regional areas, oxidation of precursors, and in-cloud processes during different seasons.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Minxia Shen, Weining Qi, Xiao Guo, Wenting Dai, Qiyuan Wang, Yali Liu, Yifan Zhang, Yue Cao, Yukun Chen, Lu Li, Haijiao Liu, Junji Cao, Jianjun Li
Summary: This study investigates the molecular distribution and carbon isotopic composition of dicarboxylic acids in PM2.5 at the foot and top of Mount Hua. Anthropogenic sources were found to contribute significantly to the dicarboxylic acids in PM2.5, and their concentrations were higher at the foot of the mountain. Aerosols from the foot of Mount Hua can affect the atmosphere at the mountain top through vertical transport under the influence of daytime valley wind.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Xia Meng, Yun Hang, Xiuran Lin, Tiantian Li, Tijian Wang, Junji Cao, Qingyan Fu, Sagnik Dey, Kan Huang, Fengchao Liang, Haidong Kan, Xiaoming Shi, Yang Liu
Summary: Ambient fine particulate matter (PM2.5) pollution is a major problem in China. Reductions in particulate sulfate, driven by desulfurization efforts, have led to a decrease in PM2.5 levels. However, the toxicity of particulate sulfate and its long-term trend is difficult to estimate. Using spaceborne sensors and machine learning techniques, a sulfate prediction model was developed. The model performed well and demonstrated a significant decrease in sulfate levels and associated health benefits.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Jian Sun, Jinjin Yu, Xinyi Niu, Xinya Zhang, Lili Zhou, Xinyao Liu, Bin Zhang, Kun He, Xiaofeng Niu, Kin-Fai Ho, Junji Cao, Zhenxing Shen
Summary: The study found that PM2.5 generated from solid fuel burning can induce oxidative stress and inflammatory responses in cells, with the involvement of toxic substances such as calcium ions, heavy metals, nitro-polycyclic aromatic hydrocarbons, and oxygenated PAHs. The researchers also discovered that ECG in green tea can activate the Nrf2 oxidation signaling pathway and inhibit the inflammatory signaling pathway NF-kappa B, thereby reducing the cytotoxicity of PM2.5. This study reveals the mechanism of cytotoxicity caused by solid fuel-derived PM2.5 and provides a potential therapeutic method using green tea.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Xiaole Zhang, Xiaoxiao Feng, Jie Tian, Yong Zhang, Zhiyu Li, Qiyuan Wang, Junji Cao, Jing Wang
Summary: Millions of premature mortalities are caused by PM2.5 air pollution globally each year. To address this issue, the researchers updated the emission inventories and harmonized the results from source-oriented and receptor models, finding a significant reduction in pollutant emissions in Beijing and successfully identifying temporal changes during the Spring Festival.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yunxuan Gu, Hongmei Xu, Rong Feng, Yue Cheng, Bei Han, Kin Fai Ho, Zexuan Wang, Yansu He, Linli Qu, Steven Sai Hang Ho, Jian Sun, Zhenxing Shen, Junji Cao
Summary: This study assesses personal exposure to different aerodynamic particle sizes and gaseous pollutants during solid fuel combustion for domestic heating in northern China. The results show that excessive use of traditional domestic solid fuels could have severe health effects on rural residents, highlighting the urgency of promoting clean energy in these areas.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yuting Zhang, Hang Liu, Shandong Lei, Aodong Du, Weijie Yao, Yu Tian, Yele Sun, Jinyuan Xin, Jie Li, Junji Cao, Zifa Wang, Xiaole Pan
Summary: This study investigated the aerodynamic size-resolved mixing state of refractory black carbon aerosols (rBC) in Beijing during the Olympics using a novel tandem system. The results showed that rBC particles with different diameters had different morphology, coating thickness, and optical properties, and their distribution patterns were influenced by emission scenarios and regional transport.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Xiaorui Zhang, Chenhong Zhou, Yuzhong Zhang, Xiao Lu, Xiang Xiao, Fan Wang, Jun Song, Yike Guo, Kenneth K. M. Leung, Junji Cao, Meng Gao
Summary: China is the largest emitter of methane, a potent greenhouse gas, and the current monitoring systems are insufficient for carbon management. This study uses a weather model coupled with satellite data to simulate the distribution of methane over East Asia in 2017. Evaluations show reliable performance, and the QR pivot algorithm is found to be superior in capturing high methane concentrations. Current sampling studies have a notable reconstruction error in central and eastern China, and optimal planning of monitoring sites can provide valuable references for future methane monitoring.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Chemistry, Physical
Zhenyu Wang, Qiuhua Wei, Ning Zhang, Xianjin Shi, Meijuan Chen, Yu Huang, Junji Cao, Haiwei Li, Winkei Ho, Shuncheng Lee
Summary: By maximizing the versatility of coupled hydroxyl groups, approximately 2 times higher NOx removal performance and almost complete NO2 inhibition can be achieved. The roles of different types of coupled hydroxyl groups in enhancing photocatalytic activity and product selectivity are revealed. These findings provide molecular-level insight and can aid in the design of efficient NOx removal photocatalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Ge Ma, Xiuqun Liu, Jingzhi Wang, Minrui Li, Zhibao Dong, Xiaoping Li, Lijun Wang, Yongming Han, Junji Cao
Summary: This study investigated the chemical composition and health risk assessment of PM2.5 in Songyuan, China. The results showed higher concentrations of PM2.5 indoors compared to outdoors, with elevated levels of polycyclic aromatic hydrocarbons (PAHs) and oxygenated polycyclic aromatic hydrocarbons (OPAHs) indoors. The distribution of these compounds varied between day and night, and indoor coal and biomass burning were found to greatly impact indoor pollutants. Health risk assessment indicated potential cancer risk for the population living in the area.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Environmental Sciences
Feng Yu, Xiaofei Li, Rui Zhang, Jingning Guo, Wen Yang, Lekhendra Tripathee, Lang Liu, Yuqin Wang, Shichang Kang, Junji Cao
Summary: Brown carbon aerosols in PM2.5 show significant light absorption properties, with TY samples exhibiting higher absorption ability than CH samples. Fluorescence spectrum analysis identified two humic-like and one protein-like fluorophore components in WS-BrC. Potential source analysis revealed that combustion, vehicle emissions, secondary formation, and road dust contribute to WS-BrC.
ENVIRONMENTAL POLLUTION
(2023)
Article
Multidisciplinary Sciences
Yijing Wang, Rong Wang, Katsumasa Tanaka, Philippe Ciais, Josep Penuelas, Yves Balkanski, Jordi Sardans, Didier Hauglustaine, Wang Liu, Xiaofan Xing, Jiarong Li, Siqing Xu, Yuankang Xiong, Ruipu Yang, Junji Cao, Jianmin Chen, Lin Wang, Xu Tang, Renhe Zhang
Summary: China aims to achieve carbon neutrality by 2060, requiring a significant increase in the capacity of photovoltaic (PV) and wind power. However, current projections indicate that the capacity will only reach a level of 5-9.5 PWh/year by 2060. Through optimized deployment of PV and wind power plants, coupled with advanced transmission and energy storage technologies, the capacity can be increased to 15 PWh/year, accompanied by a substantial reduction in the cost of carbon abatement. To achieve this, the annual investment in PV and wind power needs to ramp up significantly over the coming decades.
Article
Environmental Sciences
Hang Liu, Xiaole Pan, Shandong Lei, Yuting Zhang, Aodong Du, Weijie Yao, Guiqian Tang, Tao Wang, Jinyuan Xin, Jie Li, Yele Sun, Junji Cao, Zifa Wang
Summary: In this study, vertical measurements of black carbon (BC) and other pollutants were conducted in the Beijing urban area. The vertical profiles showed different types of BC distribution, with uniform distribution during the day and gradual or sharp decrease at night. The study also found variations in the ozone concentration and the coating thickness of BC particles along the vertical direction. This research provides insights into the regional environmental effects of BC.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Environmental Sciences
Yaochuang Yu, Junji Cao
Summary: Analysis of chemical profiles of agricultural soil dust can accurately assess and distribute the contribution of agricultural sources to atmospheric particulate matter. This study analyzed the compositions of PM10 and PM2.5 samples from agricultural resuspended dust in Baoji city, China. The results showed that crustal matter was the major contributor to the mass of agricultural dust, influenced by both long-range transport of Asian dust and local anthropogenic sources.
AEROSOL AND AIR QUALITY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Wei Wang, Yu Huang, Yongfang Rao, Rong Li, Shuncheng Lee, Chuanyi Wang, Junji Cao
Summary: Cationic defects in CoMnOx can enhance the lattice oxygen activation and toluene oxidation, leading to improved catalytic performance.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Physical
Hui Wang, Xiaoqian Xu, Abdelkader Labidi, Haitao Ren, Ahmed A. Allam, Ahmed Rady, Yu Huang, Shuwei Wei, Mohsen Padervand, Shahnaz Ghasemi, Chuanyi Wang
Summary: This study reports the synergistic roles of cyano and hydroxyl functional groups in photocatalytic NO removal. The insertion of cyano groups changes the energy band of the catalyst and favors the generation of active oxygen species, while the presence of hydroxyl groups promotes the further oxidation of NO2 to NO3-. This study is significant for reducing the formation of toxic intermediates during photocatalytic NO removal.
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)