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Genomic analysis and potential polyhydroxybutyrate (PHB) production from Bacillus strains isolated from extreme environments in Mexico.
BMC Microbiol
January 2025
Unidad de Manipulación Genética, Facultad de Ciencias Biológicas, Departamento de Microbiología e Inmunología, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
Background: Plastic pollution is a significant environmental problem caused by its high resistance to degradation. One potential solution is polyhydroxybutyrate (PHB), a microbial biodegradable polymer. Mexico has great uncovered microbial diversity with high potential for biotechnological applications.
View Article and Find Full Text PDFEffective removal of heavy metal ions (Pb, Cu, and Cd) from contaminated water by limestone mine wastes.
Sci Rep
January 2025
Geology Department, Faculty of Science, Assiut University, Assiut, Egypt.
Limestone mining waste and its derived CaO were checked as an adsorbents of pb, Cu, and Cd ions from water solution. The characterization of Limestone and calcined limestone was studied by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Scanning Electron Microscope (SEM), and Surface area measurements (BET). The optimum conditions of sorbent dosage, pH, initial concentration, and contact time factors were investigated for pristine limestone and calcined limestone absorbents.
View Article and Find Full Text PDFDisposal practices, risk perceptions, and quantification of potential active pharmaceutical ingredients (APIs) from used human medicine in Upper Citarum River Basin.
Int J Environ Health Res
January 2025
Research Center for Limnology and Water Resources, National Research and Innovation Agency, Bogor, Indonesia.
This paper highlights potential active pharmaceutical ingredients (APIs) generations from improper disposal of medicines and captures the perceptions of key stakeholders - households and pharmaceutical actors in Upper Citarum River Basin (UCRB). Most pharmaceutical waste is disposed of with household waste, suggesting landfills are the most significant APIs contamination sources. We highlight the complex relationship between knowledge, risk perception, and behavioural intentions, stressing the relevance of risk perception as a mediator when studying how knowledge affects behaviour.
View Article and Find Full Text PDFA POCIS-based approach for the monitoring of pharmaceuticals in wastewater treatment plants: Calibration and deployment challenges.
Environ Pollut
January 2025
Department of Analytical and Applied Chemistry, School of Engineering, IQS-Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
Article Synopsis
- The study investigates the use of Polar Organic Chemical Integrative Samplers (POCIS) as a more effective method for monitoring pharmaceutical residues in wastewater compared to traditional grab sampling.
- POCIS allows for continuous sampling over days or weeks, providing more representative data, though challenges remain in obtaining precise quantitative results due to calibration needs.
- The research successfully identifies and calibrates sampling rates for 49 pharmaceuticals in a wastewater treatment plant near Barcelona, yielding high concentrations of specific compounds, thus establishing a methodology for better environmental monitoring of pharmaceuticals.
Dissolved beryllium (< 1 kDa) mobilized as a major element in groundwater in legacy mine waste.
Environ Pollut
January 2025
Applied Geochemistry, Department of Civil, Environmental and Natural Resource Engineering, Luleå University of Technology, Luleå, Sweden.
Research regarding the geochemistry of beryllium (Be) in terrestrial environments is hindered by its high toxicity to humans and the low concentrations normally occurring in the environment. Although Be is considered an immobile element, extremely high dissolved concentrations have been detected in groundwater in the legacy Tailings Storage Facility (TSF) of Smaltjärnen, Sweden. Therefore, a detailed study was conducted to determine physiochemical parameters affecting the speciation of Be in the groundwater.
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