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    Author(s): Dennis A. Lemly
    Date: 2001
    Source: Argentina Federal Secretary of Natural Resources, Buenos Aires, Argentina
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (434 KB)


    The Argentina Federal Secretary of Natural Resources oversees a wide array of mining operations conducted on public lands. Recently, selenium has emerged as a contaminant issue associated with several gold mines in the northern mountain ranges. The Secretary's Office contacted me and requested assistance interpreting selenium concentrations and possible impacts on fish, and formulating environmental quality goals to protect aquatic life. I conducted a technical review of environmental data collected by the mining companies, applied my Protocol for hazard assessment of selenium (Lemly, 1995), and concluded that their was a substantial risk of toxic impacts to fish in streams and wetlands near active and inactive mines.

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    Lemly, Dennis A. 2001. A procedure for developing ecosystem loading limits (TMDLs) for selenium in Wastersheds affected by gold mining in Northern Argentina. Argentina Federal Secretary of Natural Resources, Buenos Aires, Argentina

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