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    Effects of road salt on microbial communities: Halophiles as biomarkers of road salt pollution

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    Author
    Pecher, W.T.
    DasSarma, P.
    Ekulona, F.
    DasSarma, S.
    Al Madadha, M.W.
    Date
    2019
    Journal
    PLoS ONE
    Publisher
    Public Library of Science
    Type
    Article
    
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    See at
    https://doi.org/10.1371/journal.pone.0221355
    Abstract
    Increased use of salting to de-ice roadways, especially in urban areas, is leading to elevated salinity levels in soil as well as surface- and ground water. This salt pollution may cause long-term ecological changes to soil and aquatic microbial communities. In this study, we examined the impact on microbial communities in soils exposed to urban road salt runoff using both culturing and 16S amplicon sequencing. Both methods showed an increase in halophilic Bacteria and Archaea in samples from road salt-exposed areas and suggested that halophiles are becoming persistent members of microbial communities in urban, road salt-impacted soils. Since salt is a pollutant that can accumulate in soils over time, it is critical to begin assessing its impact on the environment immediately. Toward this goal, we have developed a facile semi-quantitative assay utilizing halophilic microbes as biomarkers to evaluate on-going salt pollution of soils. Copyright 2019 Pecher et al.
    Keyword
    Salt
    Microbiota
    Soil Pollutants
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071778552&doi=10.1371%2fjournal.pone.0221355&partnerID=40&md5=495b7b0a21c6452398b42396d6cf525b; http://hdl.handle.net/10713/10841
    ae974a485f413a2113503eed53cd6c53
    10.1371/journal.pone.0221355
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