Article
Engineering, Environmental
Jing Yu, Hui Zhu, Heli Wang, Brian Shutes, Tingting Niu
Summary: The rapid development of agriculture has led to increased release of butachlor into aquatic environments. Butachlor has significant toxic effects on the growth, physiology, and molecular mechanisms of Microcystis aeruginosa, a dominant species causing cyanobacterial blooms. Low concentrations of butachlor showed no significant changes, indicating a high tolerance in Microcystis aeruginosa. However, high concentrations of butachlor resulted in inhibition of photosynthetic activity, disruption of cell ultrastructure, oxidative stress, and elevated extracellular microcystin-LR concentration.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Microbiology
Nian Wei, Lirong Song, Nanqin Gan
Summary: This study used iTRAQ-based proteomics to investigate the effects of phosphorus depletion on Microcystis aeruginosa, showing that phosphorus depletion inhibits cell growth and primary metabolic processes while maintaining photosystem integrity, and influences the balance of carbon, nitrogen, and phosphorus in the cells.
Article
Environmental Sciences
Di Wu, Ting Wang, Jing Wang, Lijuan Jiang, Ying Yin, Hongyan Guo
Summary: The study reveals that 1 μm polystyrene microplastics have a greater impact on freshwater cyanobacteria compared to 100 nm microplastics, promoting algal growth and inhibiting photosynthesis. Additionally, 1 μm microplastics increase intracellular microcystins content and inhibit their release, while 100 nm microplastics only promote microcystin production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jing Yu, Hui Zhu, Brian Shutes, Xinyi Wang
Summary: This study evaluates the effect of alkaline salt on Microcystis aeruginosa, a harmful cyanobacterium. It finds that alkaline salt can stimulate the growth of Microcystis aeruginosa, and the organism can tolerate a certain level of alkaline salt stress by increasing photosynthetic pigment contents. However, when the concentration of alkaline salt reaches a certain threshold, it can cause oxidative stress and toxicity in Microcystis aeruginosa, leading to cell apoptosis and ultrastructural changes. Additionally, alkaline salt can stimulate the production of microcystin-LR. Therefore, increased attention should be paid to the risk of Microcystis aeruginosa bloom and microcystin-LR pollution in lakes located in salinization regions.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Hangjun Zhang, Bingzhi Yu, Xizi Li, Yan Li, Yuchi Zhong, Jiafeng Ding
Summary: This study investigates the feasibility of using Fe-g-C3N4-activated PDS to remove Microcystis aeruginosa and microcystin-LR. The results demonstrate an efficient removal of the algae and toxin, and singlet oxygen is found to be a predominant radical in the process. The Fe-g-C3N4-activated PDS system is proven to be an environmentally friendly and efficient technology for algae removal and algal toxin reduction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yu Xia, Qin-Ming Xie, Ta-Jen Chu
Summary: This paper studied the effects of two fluoroquinolone antibiotics on Microcystis aeruginosa and found that these antibiotics inhibit the growth of Microcystis aeruginosa and increase its toxin production capacity. This is of great significance for the ecological risk assessment of antibiotics in the water environment.
Article
Engineering, Environmental
Qinyi Chen, Zhicong Wang, Hui Wei, Jinglong Wang, Weicheng Zhou, Panpan Zhou, Dunhai Li
Summary: This study investigates the effects of the environmental concentration of anionic surfactants on the dominance of toxic Microcystis and toxin production. The results show that high concentrations of anionic surfactants selectively promote the photosynthetic competitive advantage of toxic Microcystis and induce the synthesis and release of microcystins. Toxic Microcystis can better resist the stress of anionic surfactants by dissipating excess light, maintaining membrane structure, and cellular homeostasis. The damage to non-toxic Microcystis's photosynthesis may be due to the impacts of anionic surfactants on nitrogen absorption and assimilation.
Article
Engineering, Environmental
Minkyung Kim, Wonjae Kim, Yunho Lee, Woojun Park
Summary: The study found that under high light and organic-rich conditions, bacteria communities with H2O2 resistance can promote the growth and photosynthetic activity of Microcystis aeruginosa, with Alphaproteobacteria playing a key role, likely by protecting them from the toxicity of H2O2. These bacterial communities have higher catalase activity levels and faster rates of O2 production upon H2O2 detoxification.
Article
Environmental Sciences
Hanqi Wu, Weizheng Zhang, Xuhui Huang, Peng Gu, Qi Li, Xingzhang Luo, Zheng Zheng
Summary: This study investigated the cellular responses of Microcystis aeruginosa to the environmental concentrations of perfluorooctanoic acid (PFOA) under different phosphorus (P) conditions. The results showed that P conditions had a significant impact on cyanobacterial growth, photosynthetic pigment content, oxidative stress, and microcystin-LR (MCLR) levels. PFOA was absorbed by cyanobacterial cells through the stimulation of extracellular polymeric substances (EPS) secretion. Once inside the cells, PFOA inhibited photosynthesis, reduced P absorption, induced oxidative damage, and increased mcyA gene expression and MC-LR production. Limited P concentration and forms conditions led to increased PFOA absorption and increased the risk of MC-LR diffusion into the aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Haolian Xu, Zhenzhen Tang, Zixuan Liang, Hongbin Chen, Xiaohu Dai
Summary: Low-frequency ultrasound at 29.4 kHz for 15 min can remove 33.49% of Microcystis aeruginosa, but it also increases the leakage of intracellular algal organic matter and microcystins, accelerating the collapse of blooms and promoting CH4 production.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Wenjing Wang, Ming Jiang, Yanqing Sheng
Summary: Glyphosate was found to promote the growth of Microcystis aeruginosa by providing a phosphate source, enhancing enzyme activities, and increasing gene transcription levels. Additionally, glyphosate stimulated the production of dissolved organic matter, enhancing its release in saltwater ecosystems.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Shanlin Wang, Ping Ding, Siyu Lu, Pian Wu, Xiaoqian Wei, Ruixue Huang, Tianhan Kai
Summary: This study found that the generation of microcystins is related to cell density and the production of quorum sensing molecules, with microcystin synthesis and concentration significantly increasing after the cell density reaches a certain threshold.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Lixiao Ni, Hanqi Wu, Cunhao Du, Xianglan Li, Yan Li, Chu Xu, Peifang Wang, Shiyin Li, Jianhua Zhang, Xuqing Chen
Summary: The research demonstrated that artemisinin inhibited the growth of Microcystis aeruginosa, leading to cell death and increased release of microcystin-LR.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biology
Larry Wymer, Stephen Vesper, Ian Struewing, Joel Allen, Jingrang Lu
Summary: To ensure the safety of drinking water, it is important to understand the relationship between fungi and harmful cyanobacterial blooms (HCBs) and their toxins. This study found that the concentration of the fungus Cladosporium cladosporioides and the microcystin-gene transcript copy number of Microcystis aeruginosa appeared to be interrelated during each bloom season. The results also showed that there might be a balanced antagonism between the fungus and the cyanobacteria, with variations observed between different years.
Article
Environmental Sciences
Xinyue Yu, Chen Huang, Liang Wu, Sijia Hua, Jing Ye, Liang Meng, Chao Xu
Summary: The study found that at high concentrations, QpE exhibited stronger toxicity and inhibition effects on Microcystis aeruginosa, with a more significant impact on the expression of photosynthesis-related genes. Furthermore, QpE and QE had different effects on oxidative stress, and could stimulate the synthesis and release of MC-LR in Microcystis aeruginosa.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
Attila Csaba Kondor, Anna Viktoria Vancsik, Laszlo Bauer, Lili Szabo, Zoltan Szalai, Gergely Jakab, Gabor Maasz, Marta Pedrosa, Maria Jose Sampaio, Ana Rita Lado Ribeiro
Summary: This review provides a critical overview of research on the removal efficiency of priority substances and compounds of emerging concern through bank filtration, discussing influencing factors and future challenges. The findings show that the efficiency of bank filtration is influenced by multiple factors and varies for different substances.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinyan Wang, Shuai Zhang, Huihui Yan, Zhao Ma, Yunshan Zhang, Haining Luo, Xueli Yang
Summary: This study investigated the association between ambient PM2.5, O3 pollution, and ovarian reserve in reproductive-aged Chinese women. The results showed that increased exposure to PM2.5 and O3 was associated with decreased AMH levels, indicating reduced ovarian reserve. Notably, the effects of O3 exposure on ovarian reserve were different from those of PM2.5 exposure.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Tingting Ma, Yanjuan Ding, Fengjiao Xu, Chen Zhang, Min Zhou, Ya Tang, Yanrong Chen, Yating Wen, Rufei Chen, Bin Tang, Shigui Wang
Summary: The dragonfly species Orthetrum albistylum can accumulate heavy metals, and its heat shock protein genes have the potential to serve as biomarkers for monitoring environmental pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Naoto Ishiwaka, Koya Hashimoto, Masayoshi K. Hiraiwa, Francisco Sanchez-Bayo, Taku Kadoya, Daisuke Hayasaka
Summary: Systemic insecticides and rising temperatures have combined effects on the abundance of Odonata nymphs in paddy fields. The standalone effect of insecticide exposure decreased the Odonata community, while nymphs decreased synergistically with temperature rise in paddy water. However, the impacts of each stressor alone varied among species.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Marco Vecchiato, Carlo Barbante, Elena Barbaro, Francois Burgay, Warren R. L. Cairns, Alice Callegaro, David Cappelletti, Federico Dallo, Marianna D'Amico, Matteo Feltracco, Jean-Charles Gallet, Andrea Gambaro, Catherine Larose, Niccolo Maffezzoli, Mauro Mazzola, Ivan Sartorato, Federico Scoto, Clara Turetta, Massimiliano Varde, Zhiyong Xie, Andrea Spolaor
Summary: The Arctic region is facing contamination from long-range pollution and local human activities. Polycyclic Aromatic Hydrocarbons (PAHs) are used as environmental indicators for emission, transport, and deposition processes. Research conducted in the Arctic surface snow in Ny-Ålesund, Svalbard from October 2018 to May 2019 shows that long-range inputs of PAHs mainly occur in winter, while the most abundant analyte retene exhibits opposite seasonal trends.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Shiyu Chen, Zhenzhen Shi, Qiang Zhang
Summary: In this study, a human physiologically based pharmacokinetic (PBPK) model of diethyl phthalate (DEP) was developed to assess its toxicity. The model considers the distribution and metabolism of DEP and its active metabolite monoethyl phthalate (MEP) in different tissue compartments. Sensitivity analysis and Bayesian Markov chain Monte Carlo (MCMC) simulations were performed to evaluate the uncertainty and variability of the model parameters. The results suggest that dermal absorption is an important route of exposure to DEP in the environment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Bangguo Wang, Lijing Wang, Wenxi Cen, Tao Lyu, Peter Jarvis, Yang Zhang, Yuanxun Zhang, Yinghui Han, Lei Wang, Gang Pan, Kaili Zhang, Wei Fan
Summary: This study investigates the feasibility and mechanisms of a chemical-free nanobubble-based AOP for treating organic micropollutants in water. The results show that the oxygen nanobubble AOP has a significantly higher removal efficiency compared to air and nitrogen nanobubbles. The treatment performance is not affected by pH and the presence of ions. Higher initial concentrations of the micropollutant lead to slower treatment processes, but similar removal performance is achieved in the end. The presence of organic matter reduces the removal rate of the micropollutant. The results have practical feasibility for water and wastewater treatment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yingmei Huang, Jicai Yi, Yao Huang, Songxiong Zhong, Bin Zhao, Jing Zhou, Yuxuan Wang, Yiwen Zhu, Yanhong Du, Fangbai Li
Summary: This study investigates the impact of biochar on methylmercury (MeHg) accumulation in rice. The results show that biochar reduces MeHg levels in paddy soils by decreasing bioavailable Hg and microbial Hg methylation. Additionally, biochar decreases the uptake and translocation of MeHg in rice plants, resulting in a reduction of MeHg accumulation in rice grains.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Nengde Zeng, Fei Huang, Jiani Du, Chenghao Huang, Qian Yang, Xinhua Zhan, Baoshan Xing
Summary: This study investigates the protein targets and protein-ligand interactions related to PAH contamination in crop xylem sap using computational tools. The results show that phenanthrene has a more pronounced effect on the xylem sap proteins of maize and wheat, with maize DEPs associated with lipid biosynthesis and wheat DEPs exhibiting an increase in ABC transporters. This study provides insights into the regulation and movement of PAHs within plant xylem.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinwei Chen, Hao Ma, Run Wang, Man Wang, Binbin Zhu, Yanqing Cong, Xiayue Zhu, Guoqin Wang, Yi Zhang
Summary: Co3O4/TiO2-NRs electrodes with excellent photoresponse were prepared via plasma-assisted modification of Co3O4 on TiO2. The combination of Co3O4 and TiO2 improved the light utilization efficiency and showed potential for degradation of pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Wenjing Ji, Liying Song, Jing Wang, Hongqing Song
Summary: This study conducted a life-cycle assessment to examine the correlation between natural gas consumption and carbon emissions in different end uses in China. The results showed that both natural gas consumption and life-cycle carbon emissions have been increasing since 2017. Significant variations in NG life-cycle carbon emissions were found across different provinces and sectors, highlighting the need for targeted efforts to reduce carbon emissions.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Youyi Chen, Boxuan Zhang, Pojun Zhang, Guogui Shi, Hao Liang, Wu Cai, Jingyu Gao, Sumin Zhuang, Kaiyin Luo, Jiaqi Zhu, Chaoxiang Chen, Kunyu Ma, Jinrong Chen, Chun Hu, Xueci Xing
Summary: The synergistic effects of trace sulfadiazine and cast-iron corrosion scales on the formation of disinfection by-products in drinking water distribution systems were investigated. The presence of magnetite resulted in increased concentrations of DBPs due to the higher microbial activity and enhanced microbial extracellular electron transport pathway. The study highlights the importance of considering trace antibiotics pollution and corrosion scales in water sources for DBP control.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Bishwa Raj Pokharel, Vijay Sheri, Manoj Kumar, Zhiyong Zhang, Baohong Zhang
Summary: This review summarizes the interactions, uptake, and transport of aluminum nanoparticles (Al-NPs) in plants, highlighting their negative effects on plant growth and development, as well as their potential to alter plant defense systems and gene expression.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yonglu Wang, Fengsong Zhang, Xiaoyong Liao, Xiao Yang, Guixiang Zhang, Liyun Zhang, Chaojun Wei, Pengge Shi, Jiongxin Wen, Xiaorong Ju, Can Xu, Yang Liu, Ying Lan
Summary: This study aims to explore the effects of thiencarbazone-methyl center dot isoxaflutole on soil microflora and the potential mitigation mechanisms to bacterial communities. It was found that increasing the application of thiencarbazone-methyl center dot isoxaflutole resulted in increased stress on soil bacterial community structure and diversity. Increasing soil pH was recognized as a key factor in improving the diversity and structure of soil microflora. Supplemental use of nitrapyrin or modified attapulgite can increase soil pH and improve bacterial diversity.
ENVIRONMENTAL POLLUTION
(2024)