Silver Ecotoxicity Estimation by the Soil State Biological Indicators

Figure 1

Changes in the biological state of chernozem 10, 30, and 90 days after silver contamination. (a) Catalase activity, (b) activity of dehydrogenases, (c) total number of bacteria, (d) the abundance of bacteria of the genus Azotobacter, (e) length of the radish roots, %, and (f) integral indicator of the biological state of soils (IIBS).

(a)

(b)

(c)

(d)

(e)

(f)