Inland water carbon dioxide emissions mirror the ocean's carbon uptake and are driven not only by ecosystem heterotrophy but also by chemical equilibration and calcification.
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http://dx.doi.org/10.1126/sciadv.adt3893 | DOI Listing |
Environ Sci Pollut Res Int
January 2025
ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700120, West Bengal, India.
Nitrate, a highly reactive form of inorganic nitrogen, is commonly found in aquatic environments. Understanding the dynamics of nitrate-N concentration in rivers and its interactions with other water-quality parameters is crucial for effective freshwater ecosystem management. This study uses advanced machine learning models to analyse water quality parameters and predict nitrate-N concentrations in the lower stretch of the Ganga River from the observations of six annual periods (2017 to 2022).
View Article and Find Full Text PDFJ Hazard Mater
January 2025
Research Institute for Farm Animal Biology, Dummerstorf, Germany.
Human activities and climate change have significantly increased humic substances in freshwater ecosystems over the last few decades. This increase is particularly concerning during seasonal changes or after heavy rainfall, when concentrations can easily increase up to tenfold. This phenomenon, known as "browning," has unknown consequences for aquatic organisms.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
Shanghai Municipal Institute of Surveying and Mapping, Shanghai, 200063, China.
Inland waters face multiple threats from human activities and natural factors, leading to frequent water quality issues, particularly the significant challenge of eutrophication. Hyperspectral remote sensing provides rich spectral information, enabling timely and accurate assessment of water quality status and trends. To address the challenge of inaccurate water quality mapping, we propose a novel deep learning framework for multi-parameter estimation from hyperspectral imagery.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
University of Toronto, Chemistry, 1265 Military Trail, M1C1A4, Toronto, CANADA.
The 2024 Zurich perfluorinated compounds (PFCs) summit reiterated the urgent need for non-selective analytical approaches for PFC detection. 19F NMR holds great potential, however, sensitivity limitations lead to long analysis times and/or the possibility of not detecting low concentration species. Steady State Free Precession (SSFP) NMR collects the signal in a steady state regime, allowing 100's of acquisitions in the timespan of a single traditional NMR scan.
View Article and Find Full Text PDFSci Total Environ
January 2025
INAGRO, Department Edible Mushrooms, Ieperseweg 87, 8800 Rumbeke-Beitem, Belgium.
Button mushrooms are an important protein source with a production of >48 million metric tonnes in 2021. Several life cycle assessments (LCAs) have been employed in assessing mushroom cultivation. This paper assessed potential impacts of relevant alternatives (sphagnum moss, grass fibres, spent casing and bark) to peat as casing materials for mushroom production across Europe by using LCA using a cradle to farm gate approach.
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