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6 results for “nitrate leaching”
PFAS and nitrate leaching from undisturbed soil columns receiving biosolids and mitigation potential of biochar
<p>Land application of biosolids recycles nutrients and reduces the need for commercial fertilizers. However, per- and polyfluoroalkyl substances (PFAS) may leach from biosolids, resulting in groundwater contamination. We measured PFAS leaching from land-applied biosolids through undisturbed soil column trials and evaluated the treatment potential of amending biosolids with biochar. Synthetic rainfall was applied weekly to undisturbed soil columns from four regions in Wisconsin, including two fields with a history of biosolids application, simulating annual precipitation. The treatments consisted of a control (soil only), soil amended with biosolids, and soil receiving a mixture of biosolids and biochar. Concentrations of total PFAS in leachate were significantly affected by soil location and site history, while only long chain PFAS concentrations were significantly affected by biosolids/biochar treatments. One-time application of biosolids may result in groundwater contamination, as PFAS concentrations in leachate exceeded the local groundwater standard (a combined perfluorooctanoic acid and perflourooctanesulfonic acid groundwater concentration of 20 ng L<sup>-1</sup>) at three locations. Legacy PFAS may pose a risk to human health years after biosolid application, as a control column from a site with an intensive history of biosolid application exceeded PFAS groundwater standards. Incorporation of biochar with biosolids during application mitigated PFAS (specifically from soils with elevated leaching potential) through significant reductions of C7 – C10 perfluoroalkyl carboxylic acids and C4, C6 – C8 perfluorosulfonic acids (40 to 64% reduction in measured Σ28 PFAS). Biochar may facilitate sustainable use of biosolids through mitigation of long-chain PFAS leaching, pending long-term field evaluation. </p>
When Do Cover Crops Reduce Nitrate Leaching? A Global Meta-Analysis
<p>The document includes the dataset extracted from peer-reviewed publications on the effect of cover crops on nitrate leaching. The results and report corresponding to this dataset have been published as a review article entitled: " When Do Cover Crops Reduce Nitrate Leaching? A Global Meta-Analysis" <strong>DOI: </strong>10.1111/gcb.16269 in the Global Change Biology journal.</p>
In-situ observations of nitrate loss factor for "Estimation method is the primary source of uncertainty in cropland nitrate leaching estimate in China"
<p>This database includes In-situ observations of nitrate loss factor. Details can be found in paper named "Estimation method is the primary source of uncertainty in cropland nitrate leaching estimate in China".</p>
PFAS and nitrate leaching from undisturbed soil columns receiving biosolids and mitigation potential of biochar
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Data from: Tradeoffs between maize silage yield and nitrate leaching in a Mediterranean nitrate-vulnerable zone under current and projected climate scenarios
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Deep soil desiccation hinders nitrate leaching to groundwater in the global largest apple cultivation area
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.