ArticleACS environmental Au2025
Source Apportionment of Lead in the San Juan Watershed (USA): Influences from Weathering of Mineralized and Sedimentary Deposits.
Article in ACS environmental Au, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
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Abstract
Natural and anthropogenic sources of lead (Pb) can adversely impact water and sediment quality within large watersheds and the ecosystems they support. This study examined the sources and distribution of Pb within the San Juan watershed located in southwestern Colorado and the Four Corners region of Colorado, New Mexico, Arizona, and Utah (western United States). Samples for this project were collected from 2018 to 2021 and included seeps and springs located within the mineralized headwaters region, surface water, and sediments along an approximately 570 km stretch of riverbed. Concentrations and isotopic compositions of Pb showed that (1) source attribution using all stable Pb isotope ratios,
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