Impact of typhoon events on microplastic distribution in offshore sediments in Leizhou Peninsula of the south China sea
This study investigated microplastics ranging in size from 50 μm to 5 mm in sediment. Microscopic inspection and μ-FTIR tests were used to identify microplastic characteristics from offshore surface sediments before and after typhoons. The average microplastic abundance in offshore sediments decreased from 18 ± 17 items/kg to 15 ± 15 items/kg after typhoons. Results show that typhoons only increase the microplastic abundance in topographically protected areas along the northeast coast of LZP, with no significant difference observed in other regions. The influence of typhoon on the morphological characteristics of micro...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Feng Wang Anhua Lei Shengping Huang Lei Su Mingkun Li Nicholas J Craig Zhongping Lai Source Type: research

Safety attributes of Pseudomonas sp. P26, an environmental microorganism with potential application in contaminated environments
Environ Pollut. 2024 Mar 18:123818. doi: 10.1016/j.envpol.2024.123818. Online ahead of print.ABSTRACTCurrently, the selection of non-pathogenic microorganisms that lack clinically relevant antimicrobial resistance is crucial to bioaugmentation strategies. Pseudomonas sp. P26 (P26) is an environmental bacterium of interest due to its ability to remove aromatic compounds from petroleum, but its safety characteristics are still unknown. The study aimed to: a) determine P26 sensitivity to antimicrobials, b) investigate the presence of quinolone and β-lactam resistance genes, c) determine the presence of virulence factors, and...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Constanza Bel én Lobo Roc ío Daniela Inés Molina Paula Moreno Mochi Juan Mart ín Vargas Mar ía Ángela Jure Mar ía Silvina Juárez Tomás Source Type: research

Effects of multiple stressors on freshwater food webs: Evidence from a mesocosm experiment
Environ Pollut. 2024 Mar 18:123819. doi: 10.1016/j.envpol.2024.123819. Online ahead of print.ABSTRACTNatural and anthropogenic pressures exert influence on ecosystem structure and function by affecting the physiology and behavior of organisms, as well as the trophic interactions within assemblages. Therefore, understanding how multiple stressors affect aquatic ecosystems can improve our ability to manage and protect these ecosystems and contribute to understanding fundamental ecological principles. Here, we conducted a mesocosm experiment to ascertain the individual and combined effects of multiple stressors on trophic int...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Jiayi Xie Tao Wang Peiyu Zhang Huan Zhang Huan Wang Kang Wang Min Zhang Jun Xu Source Type: research

Photoaged polystyrene nanoplastics exposure results in reproductive toxicity due to oxidative damage in Caenorhabditis elegans
Environ Pollut. 2024 Mar 18:123816. doi: 10.1016/j.envpol.2024.123816. Online ahead of print.ABSTRACTThe increase of plastic production together with the incipient reuse/recycling system has resulted in massive discards into the environment. This has facilitated the formation of micro- and nanoplastics (MNPs) which poses major risk for environmental health. Although some studies have investigated the effects of pristine MNPs on reproductive health, the effects of weathered MNPs have been poorly investigated. Here we show in Caenorhabditis elegans that exposure to photoaged polystyrene nanoplastics (PSNP-UV) results in wors...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Roc ío Errázuriz León Vicente Andr é Araya Salcedo Francisco Javier Novoa San Miguel Cynthia Rosa Andrea Llanquinao Tardio Adolfo Andr és Tobar Briceño Stefano Francesco Cherubini Fouilloux Marcela Barbosa de Matos Cesar Sald ías Walter Ruggeri Wal Source Type: research

Back on top: Resuspended by dredging and other environmental disturbances, organochlorine compounds may affect the health of a dolphin population in a tropical estuary, Sepetiba Bay
Environ Pollut. 2024 Mar 18:123788. doi: 10.1016/j.envpol.2024.123788. Online ahead of print.ABSTRACTOrganochlorine compounds (OCs) are persistent organic pollutants linked to damaging the immune and endocrine systems, leading to a greater susceptibility to infectious diseases at high concentrations. Sepetiba Bay, in the Southeastern Brazilian coast, historically presents anthropogenic activities and environmental contamination that could negatively impact resident populations. In this context, this study aimed to investigate the temporal trends in the accumulation of organochlorine compounds over a 12-year database in the...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: J A Bri ão M Vannuci-Silva E B Santos-Neto B M R Manh ães N Oliveira-Ferreira L Machado L G Vidal E B Guari L Flach T L Bisi A F Azevedo J Lailson-Brito Source Type: research

Removal of contaminants present in water and wastewater by cyclodextrin-based adsorbents: A bibliometric review from 1993 to 2022
In this study, a statistical analysis was performed using VOSviewer and Citespace to scrutinize 2038 articles published from 1993 to 2022. The investigation unveiled a notable upsurge in pertinent articles and citation counts, with China and USA contributing the highest publication volumes. The prevailing research focus predominantly revolves around the application of CD-based materials used as adsorbents to remove conventional contaminants such as dyes and metals. The CD chemistry allows the construction of materials with various architectures, including cross-linked, grafted, hybrid or supported systems. The main adsorbe...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Chong Liu Gr égorio Crini Lee D Wilson Paramasivan Balasubramanian Fayong Li Source Type: research

Impact of typhoon events on microplastic distribution in offshore sediments in Leizhou Peninsula of the south China sea
This study investigated microplastics ranging in size from 50 μm to 5 mm in sediment. Microscopic inspection and μ-FTIR tests were used to identify microplastic characteristics from offshore surface sediments before and after typhoons. The average microplastic abundance in offshore sediments decreased from 18 ± 17 items/kg to 15 ± 15 items/kg after typhoons. Results show that typhoons only increase the microplastic abundance in topographically protected areas along the northeast coast of LZP, with no significant difference observed in other regions. The influence of typhoon on the morphological characteristics of micro...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Feng Wang Anhua Lei Shengping Huang Lei Su Mingkun Li Nicholas J Craig Zhongping Lai Source Type: research

Safety attributes of Pseudomonas sp. P26, an environmental microorganism with potential application in contaminated environments
Environ Pollut. 2024 Mar 18:123818. doi: 10.1016/j.envpol.2024.123818. Online ahead of print.ABSTRACTCurrently, the selection of non-pathogenic microorganisms that lack clinically relevant antimicrobial resistance is crucial to bioaugmentation strategies. Pseudomonas sp. P26 (P26) is an environmental bacterium of interest due to its ability to remove aromatic compounds from petroleum, but its safety characteristics are still unknown. The study aimed to: a) determine P26 sensitivity to antimicrobials, b) investigate the presence of quinolone and β-lactam resistance genes, c) determine the presence of virulence factors, and...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Constanza Bel én Lobo Roc ío Daniela Inés Molina Paula Moreno Mochi Juan Mart ín Vargas Mar ía Ángela Jure Mar ía Silvina Juárez Tomás Source Type: research

Effects of multiple stressors on freshwater food webs: Evidence from a mesocosm experiment
Environ Pollut. 2024 Mar 18:123819. doi: 10.1016/j.envpol.2024.123819. Online ahead of print.ABSTRACTNatural and anthropogenic pressures exert influence on ecosystem structure and function by affecting the physiology and behavior of organisms, as well as the trophic interactions within assemblages. Therefore, understanding how multiple stressors affect aquatic ecosystems can improve our ability to manage and protect these ecosystems and contribute to understanding fundamental ecological principles. Here, we conducted a mesocosm experiment to ascertain the individual and combined effects of multiple stressors on trophic int...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Jiayi Xie Tao Wang Peiyu Zhang Huan Zhang Huan Wang Kang Wang Min Zhang Jun Xu Source Type: research

Photoaged polystyrene nanoplastics exposure results in reproductive toxicity due to oxidative damage in Caenorhabditis elegans
Environ Pollut. 2024 Mar 18:123816. doi: 10.1016/j.envpol.2024.123816. Online ahead of print.ABSTRACTThe increase of plastic production together with the incipient reuse/recycling system has resulted in massive discards into the environment. This has facilitated the formation of micro- and nanoplastics (MNPs) which poses major risk for environmental health. Although some studies have investigated the effects of pristine MNPs on reproductive health, the effects of weathered MNPs have been poorly investigated. Here we show in Caenorhabditis elegans that exposure to photoaged polystyrene nanoplastics (PSNP-UV) results in wors...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Roc ío Errázuriz León Vicente Andr é Araya Salcedo Francisco Javier Novoa San Miguel Cynthia Rosa Andrea Llanquinao Tardio Adolfo Andr és Tobar Briceño Stefano Francesco Cherubini Fouilloux Marcela Barbosa de Matos Cesar Sald ías Walter Ruggeri Wal Source Type: research

Back on top: Resuspended by dredging and other environmental disturbances, organochlorine compounds may affect the health of a dolphin population in a tropical estuary, Sepetiba Bay
Environ Pollut. 2024 Mar 18:123788. doi: 10.1016/j.envpol.2024.123788. Online ahead of print.ABSTRACTOrganochlorine compounds (OCs) are persistent organic pollutants linked to damaging the immune and endocrine systems, leading to a greater susceptibility to infectious diseases at high concentrations. Sepetiba Bay, in the Southeastern Brazilian coast, historically presents anthropogenic activities and environmental contamination that could negatively impact resident populations. In this context, this study aimed to investigate the temporal trends in the accumulation of organochlorine compounds over a 12-year database in the...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: J A Bri ão M Vannuci-Silva E B Santos-Neto B M R Manh ães N Oliveira-Ferreira L Machado L G Vidal E B Guari L Flach T L Bisi A F Azevedo J Lailson-Brito Source Type: research

The role of Sertoli cells-secreted factors in different stages of germ cells development in mice exposed to BDE-209
Environ Pollut. 2024 Mar 17;347:123775. doi: 10.1016/j.envpol.2024.123775. Online ahead of print.ABSTRACTDecabromodiphenyl ether (BDE-209), a frequently used brominated flame retardant, readily enters the environment and is difficult to degrade with bioaccumulation. BDE-209 could cause male reproductive toxicity, but the regulatory functions of Sertoli cells-secreted factors remain uncertain. In present study, male mice were treated with 75 mg/kg BDE-209 and then stopped exposure for 50 days. Exogenous Glial cell line-derived neurotrophic factor (GDNF), a Sertoli cell-secreted factor, was injected into testes of mice treat...
Source: Environmental Pollution - March 19, 2024 Category: Environmental Health Authors: Yue Zhang Xiangyang Li Leqiang Gao Xiaomin Dong Jinglong Xue Moxuan Zhao Junhong Xie Aliekram Niyaz Lihua Ren Xianqing Zhou Source Type: research

Investigation on the source of VOCs emission from indoor construction materials using electronic sensors and TD-GC-MS
In this study, the VOCs found in a brand new office complex were monitored over a period of 6 months, with an emphasis on monitoring and quantifying harmful VOCs and identifying their emission source. Air samples were taken from a closed, unoccupied office space on a weekly basis and analysed using Thermal Desorption-Gas Chromatography-Mass Spectrometry (TD-GC-MS), while continuous monitoring of the air quality was performed using two commercially available IAQ sensors. To identify the source of the emitted VOCs, pieces of all construction material that were used in the office, including flooring, finished wall material an...
Source: Environmental Pollution - March 19, 2024 Category: Environmental Health Authors: E A Elia M Stylianou A Agapiou Source Type: research

Functionalization of porous silica with graphene oxide and polyethyleneimine, containing zinc copper ferrite nanoparticles for water treatment and antibacterial application
Environ Pollut. 2024 Mar 16:123745. doi: 10.1016/j.envpol.2024.123745. Online ahead of print.ABSTRACTThe article discusses the removal of methylene blue (MB) dye, a common cationic dye used in the textile industry, from aqueous solutions through an adsorption process. The use of porous components as adsorbents are shown to facilitate complete separation after the process is completed. The substrate was synthesized by connecting zinc copper ferrite (ZnCuFe2O4), polyethyleneimine (PEI), and Graphene Oxide (GO) sheets to MCM-48, which is a mesoporous material. The surface of MCM-48 was modified using CPTMS, which created an O...
Source: Environmental Pollution - March 18, 2024 Category: Environmental Health Authors: Ali A Shati Mohammad Y Alfaifi Serag Eldin I Elbehairi Bokov Dmitry Olegovich Raed H Althomali Sherzod Shukhratovich Abdullaev Ebraheem Abdu Musad Saleh Beneen M Hussien Mohammed Kadhem Abid Marim Alwave Source Type: research

The power of Posidonia oceanica meadows to retain microplastics and the consequences on associated macrofaunal benthic communities
In this study, we investigated the differences in MPs abundance and composition (i.e., shape, colour and polymer type) in marine sediments collected at different depths (-5 m, -15 m, -20 m) at two sites characterized by the presence of Posidonia oceanica meadows and at one unvegetated site. In the vegetated sites, sediment samples were collected respectively above and below the upper and lower limits of the meadow (-5 m and -20 m), out of the P. oceanica meadow, and in the central portion of the meadow (-15 m). By focusing on the central part of the meadow, we investigated if the structural features (i.e. shoots density an...
Source: Environmental Pollution - March 18, 2024 Category: Environmental Health Authors: Marco Martinez Roberta Minetti Emanuela Claudia La Marca Valeria Montalto Alessandro Rinaldi Elisa Costa Fabio Badalamenti Francesca Garaventa Simone Mirto Francesca Ape Source Type: research