Perchlorate Levels in Samples of Sodium Nitrate Fertilizer Derived From Chilean Caliche

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Urbansky, E. T.; Urbansky*, E.; Brown, S. K.; Magnuson, M. L.; Kelty, C. A.; Kelty*, C.;

Paleogeochemical deposits in northern Chile are a rich source of naturally occurring sodium nitrate. These caliche ores are mined and processed to isolate NaNO3 (16-0-0) for use in fertilizers. Coincidentally, these very same deposits are a natural soure of perchlorate ... View more
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