Invertebrates, terrestrial chromium

Data on toxicity of chromium to terrestrial invertebrates are sparse. Studies conducted in India showed that a concentration of 10 to 15 mg/L of CrM in irrigation water, when applied to soils for agricultural purposes, was lethal to two species of earthworms in 58 to 60 days (Soni and Abbasi 1981 Abbasi and Soni 1983). 

Certain plants grown on serpentine soils containing 1000-50,000 mg Cr/kg dry weight (DW) may contain 10.0-100.0 mg Cr g DW -levels that may be toxic to wildlife, although no reports of this phenomenon are known. Most plant and invertebrate species die before accumulating amounts of chromium that are toxic to predators. Some species of terrestrial plants have been proposed for the removal of chromate from wastewaters. Terrestrial plants, such as wheat (Triticum aestivum), accumulate the greatest amount of chromium under conditions of sulfate deficiency or deprivation. Because... 

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