Article
Environmental Sciences
Thandy Junio da Silva Pinto, Raquel Aparecida Moreira, Juliane Silber Schmidt Freitas, Lais Conceicao Menezes da Silva, Maria Paula Cardoso Yoshii, Lais Fernanda de Palma Lopes, Allan Pretti Ogura, Gabriele Veronica de Mello Gabriel, Luana Maria Tavares Rosa, Luis Schiesari, Janaina Braga do Carmo, Cassiana Carolina Montagner, Michiel Adriaan Daam, Evaldo Luiz Gaeta Espindola
Summary: This study assessed the potential risks of sugarcane management practices to aquatic ecosystems. The effects on the midge Chironomus sancticaroli were evaluated through in-situ and laboratory bioassays. The results showed that these management practices had negative impacts on both the aquatic ecosystems and the insects, including effects on survival, growth, and development.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Ana-Belen Muniz-Gonzalez, Carlos J. M. Silva, Ana L. Patricio Silva, Diana Campos, Joao L. T. Pestana, Jose-Luis Martinez-Guitarte
Summary: The study reveals that exposure to environmental concentrations of LDPE MPs affects energy reserves, antioxidant responses, detoxification responses, and neurotransmission in Chironomus riparius larvae, as well as induces significant changes at the gene level, thereby impacting development and response to unfavorable situations in these organisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Carlos J. M. Silva, Sonia Beleza, Diana Campos, Amadeu M. V. M. Soares, Ana L. Patricio Silva, Joao L. T. Pestana, Carlos Gravato
Summary: This study found that ingestion of polyethylene microplastics by Chironomus riparius larvae triggered a significant increase in basal PO activity at concentrations of 5 and 20 g PE-MPs kg-1, by 26% and 29% respectively, while total PO increased significantly by 48%, indicating de novo synthesis of proPO by organisms. The activation of the immune response is likely linked to damage in the epithelial cells of the gut lumen.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Victor Carrasco-Navarro, Ana-Belen Muniz-Gonzalez, Jouni Sorvari, Jose-Luis Martinez-Guitarte
Summary: The study found alterations in the expression of twelve genes in the aquatic insect Chironomus riparius after 36 h exposures to polystyrene and tire rubber microplastics, with overexpression of heat shock protein genes. The changes mainly occurred at higher concentrations of microplastics, but did not result in mortality.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Carlos J. M. Silva, Ana L. Machado, Diana Campos, Amadeu M. V. M. Soares, Joao L. T. Pestana
Summary: Several studies have shown that ingestion of microplastics has negative effects on aquatic organisms, including sediment-dwelling invertebrates. This study explores the interactive effects of exposure to polyethylene microplastics on the life history traits of midges, taking into account different temperatures, salinity levels, and food availability. The results reveal that microplastics' effects can be stronger at lower temperatures or severe food shortages, and that toxicity induced by microplastics is reduced under warmer temperature and salinity conditions.
ENVIRONMENTAL RESEARCH
(2022)
Article
Marine & Freshwater Biology
Isara Thani, Taeng On Prommi
Summary: A study was conducted to investigate the frequency of deformations in chironomid larvae and its correlation with water quality in the Chi River basin, Maha Sarakam Province, Thailand. The results showed significant differences in the mean values of dissolved oxygen (DO) and biochemical oxygen demand (BOD5) among sampling sites. The majority of the collected larvae belonged to the subfamily Chironominae, with the genus Polypedilum being the most abundant. The study revealed a strong correlation between larvae deformities and DO levels, suggesting the potential use of chironomid larvae as a biomonitoring tool.
INLAND WATER BIOLOGY
(2022)
Article
Environmental Sciences
Yuanzheng Zhai, Yifan Han, Hong Lu, Qingqing Du, Xuelian Xia, Yanguo Teng, Rui Zuo, Jinsheng Wang
Summary: This study examined the long-term impact of anthropogenic pollutants such as organic nitrogen and ammonia on groundwater quality and component concentrations. Results showed that wastewater discharge altered the hydrogeochemical component concentrations, shifting inorganic nitrogen species from nitrate to ammonia and increasing manganese concentrations. The complex interaction between manganese and nitrogen species complicates the transformation of nitrogen components in groundwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Hsueh-Han Hsieh, Ming-Hsiu Chuang, Yung-Yen Shih, W. Sanjaya Weerakkody, Wei-Jen Huang, Chin-Chang Hung, Francois L. L. Muller, R. R. M. K. P. Ranatunga, D. S. Wijethunga
Summary: This study examined eutrophication and hypoxia in the Negombo Lagoon of Sri Lanka, finding that the main contributing factors were high population pressure and poor water circulation leading to these events.
FRONTIERS IN MARINE SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Jingfan Qi, Jiacheng Yu, Kinjal J. Shah, Dhirpal D. Shah, Zhaoyang You
Summary: Natural clay mineral and its modifier, modified clay, have been used in environmental applications for years, but they are not capable enough to achieve higher conversion rate and ecological sustainability due to a lack of understanding of their selectivity or compatibility with pollutants. The development and implementation of green principles have become an emerging field that combines green chemistry and engineering practices to achieve a pollutant-free environment. This review summarizes the role of clay/modified clay in pollution control and discusses the role of green chemistry in global sustainability.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Environmental
Jian Shen, Yiming Song, Cheng Cheng, Fengkui Duan, Chuanyang Liu, Yidi Chai, Siting Wang, Qiuran Xiong, Jing Wu
Summary: Snow has stronger adsorption capacity for organic pollutants than rain. Anthropogenic dissolved organic matters (DOMs) in urban snow could enter the water environment and increase water pollution risk. Extracting stable pollution features of urban snow is helpful for identifying urban snow pollution in the water environment.
Article
Environmental Sciences
Zhenhan Li, Wenqiang Zhang, Baoqing Shan
Summary: We studied the distribution and sources of polycyclic aromatic hydrocarbons (PAHs) and organic matter (OM) in sediments from two rivers in North China. The results showed a significant positive correlation between PAHs and OM in the sediments, with higher concentrations detected downstream of areas affected by human activity. Petroleum, coal, and wood combustion were identified as the main sources of PAHs in the sediments, while terrestrial and aquatic higher plants, soil, and sewage discharge contributed to the OM content. OM accumulated and aged along the river, leading to stronger adsorption of PAHs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Junlei Zhan, Zeming Feng, Pengfei Liu, Xiaowei He, Zhouming He, Tianzeng Chen, Yafei Wang, Hong He, Yujing Mu, Yongchun Liu
Summary: The study found that the contribution of volatile organic compounds (VOCs) to ozone (O-3) and secondary organic aerosol (SOA) formation varies in different regions, with alkenes being the largest contributor to VOCs. The formation of O-3 is mainly limited by VOCs, while the formation of SOA is more influenced by aromatic compounds.
ENVIRONMENTAL POLLUTION
(2021)
Article
Multidisciplinary Sciences
Nianzhi Jiao, Jihua Liu, Bethanie Edwards, Zongqing Lv, Ruanhong Cai, Yongqin Liu, Xilin Xiao, Jianning Wang, Fanglue Jiao, Rui Wang, Xingyu Huang, Bixi Guo, Jia Sun, Rui Zhang, Yao Zhang, Kai Tang, Qiang Zheng, Farooq Azam, John Batt, Wei-Jun Cai, Chen He, Gerhard J. Herndl, Paul Hill, David Hutchins, Julie LaRoche, Marlon Lewis, Hugh MacIntyre, Luca Polimene, Carol Robinson, Quan Shi, Curtis A. Suttle, Helmuth Thomas, Douglas Wallace, Louis Legendre
Summary: The study found that chemical oxygen demand (COD) is not an appropriate proxy for assessing the microbial degradability of organic matter in aquatic environments, and recommends the replacement of COD with an optode-based biological oxygen demand method.
Article
Chemistry, Multidisciplinary
Begona Mayans, Raquel Camacho-Arevalo, Carlos Garcia-Delgado, Cynthia Alcantara, Norbert Nagele, Rafael Anton-Herrero, Consuelo Escolastico, Enrique Eymar
Summary: The study focused on evaluating the efficiency of two previously untested Pleurotus species in removing TCE from sandy loam soil, with both fungi showing promising results in improving TCE dissipation by 44%. Extracellular enzymes were minimally expressed, suggesting a potential role of CYP450 in TCE degradation.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Guihua Zhang, Xinyi Zou, Qianxi Wang, Yi He
Summary: Understanding the guest-induced dynamic deformation process of covalent organic frameworks (COFs) is important for improving their stimulus-response performances. In this study, we used dark-field microscopic imaging to observe the real-time deformation evolution of individual COF-300 crystals induced by guests. We discovered transient and nonequilibrium intermediate deformation states, as well as diverse adsorption behaviors of COF-300 particles for DCM.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
