Influence of Cr(VI) on enzymatic activity of soil

Jerzy Pacha

doi:10.1117/12.140240

9 March 1993 Influence of Cr(VI) on enzymatic activity of soil

Jerzy Pacha

Proceedings Volume 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers; (1993) https://doi.org/10.1117/12.140240
Event: Environmental Sensing '92, 1992, Berlin, Germany

Abstract

The inhibitory effect of Cr(VI) on soil hydrolases activity during two different periods (one and six months) was investigated, in order to obtain information on the change in heavy metal toxicity with time. Considering toxicity as the ecological dose-50% (EcD₅₀) toxicity tended to increase over six months for cellulase C_x, protease and acid phosphates and to decrease for amylase. The average EcD₅₀ value varied between 4450 and 1210 ppm for cellulase C_x, 5000 and 2320 ppm for protease, 3830 and 3295 ppm for acid phosphatase, 4030 and over 5000 ppm for amylase.

Citation Download Citation

Jerzy Pacha "Influence of Cr(VI) on enzymatic activity of soil", Proc. SPIE 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers, (9 March 1993); https://doi.org/10.1117/12.140240

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