Reducing bioavailability and phytotoxicity of 2,4-dinitrotoluene by sorption on K-smectite clay.
نویسندگان
چکیده
Smectite clays demonstrate high affinities for nitroaromatics that strongly depend on the exchangeable cation. The K-smectites have high affinities for nitroaromatics, but Ca-smectites do not. Here we evaluate the ability of K-smectite to attenuate the bioavailability and hence toxicity of 2,4-dinitrotoluene (2,4-DNT) to the aquatic plant duckweed. In the absence of K-smectite, 2,4-DNT was highly toxic to duckweed. Small amounts of K-smectite reduced toxicity substantially, presumably by reducing 2,4-DNT bioavailability via sorption.
منابع مشابه
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ورودعنوان ژورنال:
- Environmental toxicology and chemistry
دوره 26 2 شماره
صفحات -
تاریخ انتشار 2007