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Politics : Foreign Affairs Discussion Group

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To: Noel de Leon who wrote (99040)	5/24/2003 5:31:45 PM
From: Hawkmoon	Read Replies (2) of 281500

Round Up has been found in ground water in Denmark, a country that depends on ground water for its supply of potable water. Glyphosate may enter aquatic systems through accidental spraying, spray drift, or surface runoff. It dissipates rapidly from the water column as a result of adsorption and possibly biodegradation. The half-life in water is a few days. Sediment is the primary sink for glyphosate. After spraying, glyphosate levels in sediment rise and then decline to low levels in a few months. Due to its ionic state in water, glyphosate would not be expected to volatilize from water or soil. Based on its water solubility, glyphosate is not expected to bioconcentrate in aquatic organisms. It is minimally retained and rapidly eliminated in fish, birds, and mammals. The BCF of glyphosate in fish following a 10-14 day exposure period was 0.2 to 0.3. epa.gov Hawk

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