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Effects of combinations of simulated acid rain and cadmium or zinc on microbial activity in soil

Journal Article · · Environ. Res.; (United States)
There was little effect on the rate of CO/sub 2/ evolution from glucose-supplemented soil, adjusted to pH 3.2 with a 2:1 combination of H/sub 2/SO/sub 4/ and fuming HNO/sub 3/, and concomitant additions of 100 or 1000 ppm Cd or of 1000 or 10,000 ppm Zn (as sulfates) were no more inhibitory than in soil untreated with acid. In soil adjusted to pH 2.8, the lag in CO/sub 2/ evolution was increased by 1 day, and was extended further by the concomitant addition of 10,000 but not 1000 ppm Zn or of 1000 but not 100 ppm Cd. The growth of Aspergillus niger in soil acidified to pH levels of 3.6 to 4.2 was further reduced by the addition of either 100 or 250 ppm Cd or of 1000 Zn. 20 references, 1 figure, 2 tables.
Research Organization:
New York Univ., New York
OSTI ID:
6656754
Journal Information:
Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 31; ISSN ENVRA
Country of Publication:
United States
Language:
English