Personal exposure monitoring of fine and coarse particulate matter using exposure assessment models for elderly residents in Hong Kong
This study investigated the determinants of personal exposures (PE) to coarse (PM2.5-10) and fine particulate matter (PM2.5) for elderly communities in Hong Kong. The mean PE PM2.5 and PM2.5-10 were 23.6 ± 10.8 and 13.5 ± 22.1 μg/m3, respectively during the sampling period. Approximately 76% of study subjects presented statistically significant differences between PE and ambient origin for PM2.5 compared to approximately 56% for PM2.5-10, possibly due to the coarse-size particles being more influenced by similar sources (road dust and construction dust emissions) compared to the PM2.5 particles. Individual PE to ambient...
Source: Chemosphere - April 14, 2024 Category: Chemistry Authors: Ka Hei Lui Tianhang Zhang Chung Ling Man Chi Shing Chan Steven Sai Hang Ho Linli Qu Helen Hoi Ling Kwok Timothy Chi Yui Kwok Kin Fai Ho Source Type: research
Abiotic natural attenuation of 1,2,3-trichloropropane by natural magnetite under O < sub > 2 < /sub > perturbation
This study revealed that higher magnetite concentrations, smaller magnetite particle sizes, and lower initial TCP concentrations favored TCP degradation. The presence of <10 mg/L natural organic matter (NOM) did not affect TCP degradation. These findings significantly advance our understanding of the abiotic natural attenuation mechanisms facilitated by iron minerals under O2 perturbation, providing crucial insights for the study of natural attenuation.PMID:38615949 | DOI:10.1016/j.chemosphere.2024.142040 (Source: Chemosphere)
Source: Chemosphere - April 14, 2024 Category: Chemistry Authors: Chunyun Gu Jiabin Li Wei Zhou Jiayi An Liting Tian Feng Xiong Wenbo Fei Yangfan Feng Jie Ma Source Type: research
Personal exposure monitoring of fine and coarse particulate matter using exposure assessment models for elderly residents in Hong Kong
This study investigated the determinants of personal exposures (PE) to coarse (PM2.5-10) and fine particulate matter (PM2.5) for elderly communities in Hong Kong. The mean PE PM2.5 and PM2.5-10 were 23.6 ± 10.8 and 13.5 ± 22.1 μg/m3, respectively during the sampling period. Approximately 76% of study subjects presented statistically significant differences between PE and ambient origin for PM2.5 compared to approximately 56% for PM2.5-10, possibly due to the coarse-size particles being more influenced by similar sources (road dust and construction dust emissions) compared to the PM2.5 particles. Individual PE to ambient...
Source: Chemosphere - April 14, 2024 Category: Chemistry Authors: Ka Hei Lui Tianhang Zhang Chung Ling Man Chi Shing Chan Steven Sai Hang Ho Linli Qu Helen Hoi Ling Kwok Timothy Chi Yui Kwok Kin Fai Ho Source Type: research
Abiotic natural attenuation of 1,2,3-trichloropropane by natural magnetite under O < sub > 2 < /sub > perturbation
This study revealed that higher magnetite concentrations, smaller magnetite particle sizes, and lower initial TCP concentrations favored TCP degradation. The presence of <10 mg/L natural organic matter (NOM) did not affect TCP degradation. These findings significantly advance our understanding of the abiotic natural attenuation mechanisms facilitated by iron minerals under O2 perturbation, providing crucial insights for the study of natural attenuation.PMID:38615949 | DOI:10.1016/j.chemosphere.2024.142040 (Source: Chemosphere)
Source: Chemosphere - April 14, 2024 Category: Chemistry Authors: Chunyun Gu Jiabin Li Wei Zhou Jiayi An Liting Tian Feng Xiong Wenbo Fei Yangfan Feng Jie Ma Source Type: research
The dawning era of oral thin films for nutraceutical delivery: From laboratory to clinic
Biotechnol Adv. 2024 Apr 12:108362. doi: 10.1016/j.biotechadv.2024.108362. Online ahead of print.ABSTRACTOral thin films (OTFs) are innovative dosage forms that have gained tremendous attention for the delivery of nutraceuticals. They are ultra-thin, flexible sheets that can be easily placed on the tongue, sublingual or buccal mucosa (inner lining of the cheek). These thin films possess several advantages for nutraceutical delivery including ease of administration, rapid disintegration, fast absorption, rapid onset of action, bypass first-pass hepatic metabolism, accurate dosing, enhanced stability, portability, discreetne...
Source: Biotechnology Advances - April 14, 2024 Category: Biotechnology Authors: None Ruchika Nabab Khan Shagun Sanjivv Dogra Ankit Saneja Source Type: research
The dawning era of oral thin films for nutraceutical delivery: From laboratory to clinic
Biotechnol Adv. 2024 Apr 12:108362. doi: 10.1016/j.biotechadv.2024.108362. Online ahead of print.ABSTRACTOral thin films (OTFs) are innovative dosage forms that have gained tremendous attention for the delivery of nutraceuticals. They are ultra-thin, flexible sheets that can be easily placed on the tongue, sublingual or buccal mucosa (inner lining of the cheek). These thin films possess several advantages for nutraceutical delivery including ease of administration, rapid disintegration, fast absorption, rapid onset of action, bypass first-pass hepatic metabolism, accurate dosing, enhanced stability, portability, discreetne...
Source: Biotechnology Advances - April 14, 2024 Category: Biotechnology Authors: None Ruchika Nabab Khan Shagun Sanjivv Dogra Ankit Saneja Source Type: research
The dawning era of oral thin films for nutraceutical delivery: From laboratory to clinic
Biotechnol Adv. 2024 Apr 12;73:108362. doi: 10.1016/j.biotechadv.2024.108362. Online ahead of print.ABSTRACTOral thin films (OTFs) are innovative dosage forms that have gained tremendous attention for the delivery of nutraceuticals. They are ultra-thin, flexible sheets that can be easily placed on the tongue, sublingual or buccal mucosa (inner lining of the cheek). These thin films possess several advantages for nutraceutical delivery including ease of administration, rapid disintegration, fast absorption, rapid onset of action, bypass first-pass hepatic metabolism, accurate dosing, enhanced stability, portability, discree...
Source: Biotechnology Advances - April 14, 2024 Category: Biotechnology Authors: None Ruchika Nabab Khan Shagun Sanjivv Dogra Ankit Saneja Source Type: research
Quantifying the mitigating effect of organic matter on heavy metal availability in soils with different manure applications: A geochemical modelling study
In this study, a geochemical model (LeachXS) coupled with a pH-dependent leaching test with continuously simulations over a broad pH range was used to determine the effects and pollution risks of pig or cattle manure separate application on soil HMs distribution. Both pig and cattle manure applications led to soil pH reduction in alkaline soils and increased organic matter content. Pig manure application resulted in a potential 90.5-156.0 % increase in soil HM content. Cattle manure did not cause significant HM contamination. The leaching trend of soil HMs across treatments exhibited a V-shaped change, with the lowest conc...
Source: Ecotoxicology and Environmental Safety - April 12, 2024 Category: Environmental Health Authors: Jing Li Yan Xu Yitao Zhang Zhen Liu Huarui Gong Wen Fang Zhu OUYang Weiwei Li Li Xu Source Type: research
Molecules, Vol. 29, Pages 1760: Adsorption of Ciprofloxacin on Clay Minerals in Argentinian Santa Rosa-Corrientes Soils
o Sainz-Díaz
The presence of antibiotics in soils is increasing drastically in last decades due to the intensive farming industry and excessive human consumption. Clay minerals are one of the soil components with great adsorption capacity for organic pollutants. The study of interactions between antibiotics and mineral surfaces will give us scientific knowledge of these pollutants through soils. In this work, we study the adsorption of the antibiotic ciprofloxacin in the clay mineral fraction of soils from the Argentinian zone of Santa Rosa (Corrientes), in a collaborative research of experiments and atomistic modelli...
Source: Molecules - April 12, 2024 Category: Chemistry Authors: Nelly L. Jorge Mar ía V. Garrafa Jorge M. Romero Mar ía J. Jorge Lilian C. Jorge Mario R. Delfino Yumeida V. Meruvia-Rojas Alfonso Hern ández-Laguna C. Ignacio Sainz-D íaz Tags: Article Source Type: research
Assessing aspects of solution-based chemical synthesis to convert waste Si solar cells into nanostructured aluminosilicate crystals
This article is licensed under aCreative Commons Attribution 3.0 Unported Licence.Edita Garskaite, Math Bollen, Enock Mulenga, Mathis Warlo, Glenn Bark, Espen Olsen, Dalia Brazinskiene, Denis Sokol, Dietrich Buck, Dick Sandberg An affordable, scalable, and easily adoptable solution-based processing route provides a potential way of converting waste Si solar cells into aluminosilicate minerals to contribute to sustainability in the solar energy value chain. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC -...
Source: RSC - CrystEngComm latest articles - April 11, 2024 Category: Chemistry Authors: Edita Garskaite Source Type: research
The mechanism of intrinsic peroxidase (POD)-like activity of attapulgite
This study serves as a novel reference for the future design and performance optimization of nanozymes that are based on ATP and clay minerals.PMID:38602542 | DOI:10.1007/s00216-024-05280-2 (Source: Analytical and Bioanalytical Chemistry)
Source: Analytical and Bioanalytical Chemistry - April 11, 2024 Category: Chemistry Authors: Feng Feng Yihe Zhang Xiao Zhang Bin Mu Qi An Peixia Wang Source Type: research
The mechanism of intrinsic peroxidase (POD)-like activity of attapulgite
This study serves as a novel reference for the future design and performance optimization of nanozymes that are based on ATP and clay minerals.PMID:38602542 | DOI:10.1007/s00216-024-05280-2 (Source: Analytical and Bioanalytical Chemistry)
Source: Analytical and Bioanalytical Chemistry - April 11, 2024 Category: Chemistry Authors: Feng Feng Yihe Zhang Xiao Zhang Bin Mu Qi An Peixia Wang Source Type: research
Evolution of the redox-altered, two-tiered Muralha Flow in the Fronteira Oeste Rift, southern Paran á Volcanic Province
An Acad Bras Cienc. 2024 Apr 5;96(1):e20231088. doi: 10.1590/0001-3765202420231088. eCollection 2024.ABSTRACTThe thorough redox alteration of a lava flow is an undescribed feature in intraplate basaltic provinces. The Early Cretaceous (134.5 Ma) Paraná Province displays that alteration in the major Muralha Flow. This oxidized and reduced flow from the southern part of the province was studied with satellite images, field surveying, petrography, and published whole rock geochemistry. The 100 x 100 km flow from the Cuesta de Haedo presents two hydrothermal tiers - lower Tier 1 is gray to white, upper Tier 2 is red. Iron oxy...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: L éo A Hartmann Leonardo Cardoso Renner Eduarda Klabunde Source Type: research
The efficient applications of native flora for phytorestoration of mine tailings: a pan-global survey
This study focuses on phytorestoration as a sustainable method for treating mine tailings. Phytorestoration utilizes existing native plants on the mine sites while applying advanced principles of environmental biotechnology. These approaches can remediate toxic elements and simultaneously improve soil quality. The current study provides a global overview of phytorestoration methods, emphasizing the specifics of mine tailings and the research on native plant species to enhance restoration ecosystem services.PMID:38598151 | DOI:10.1007/s11356-024-33054-x (Source: Environmental Science and Pollution Research International)
Source: Environmental Science and Pollution Research International - April 10, 2024 Category: Environmental Health Authors: Ankit Abhilash Swain Pallavi Sharma Chetan Keswani Tatiana Minkina Purushotham Tukkaraja Venkataramana Gadhamshetty Sanjeev Kumar Kuldeep Bauddh Narendra Kumar Sushil Kumar Shukla Manoj Kumar Rama Shanker Dubey Ming Hung Wong Source Type: research
Biomineralized manganese oxide mediated nitrogen-contained wastewater treatment
Bioresour Technol. 2024 Apr 8:130689. doi: 10.1016/j.biortech.2024.130689. Online ahead of print.ABSTRACTIn recent years, manganese (Mn) has emerged as an accelerator for nitrogen metabolism. However, the bioactivity of manganese is limited by the restricted contact between microbes and manganese minerals in the solid phase and by the toxicity of manganese to microbes. To enhance the bioactivity of solid-phase manganese, biomineralized manganese oxide (MnOx) modified by Lactobacillus was introduced. Nitrogen removal performance have confirmed the effective role of biomineralized MnOx in accelerating the removal of total in...
Source: Bioresource Technology - April 10, 2024 Category: Biotechnology Authors: Yingying Liu Xinshan Song Zhongshuo Xu Yifei Wang Xiaoxiao Hou Yuhui Wang Xin Cao Wei Wang Source Type: research
