Influence of trace metals on carbon dioxide evolution from a Yolo soil

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Soil Sci.; (United States)

OSTI ID:5860100

Chang, F -H; Broadbent, F E

We measured carbon dioxide production in Yolo silt loam amended with alfalfa meal and sewage sludge after the addition of solutions of chromium, cadmium, copper, lead, manganese, and zinc at concentrations ranging from 0 to 400 parts per million. Quantities of these metals extractable with water, KNO/sub 3/, DTPA, and HNO/sub 3/ were determined at the end of the experiment. Threshold concentrations of metals, defined as the concentration required for 10 percent inhibition of CO/sub 2/ production, were in the sequence Pb>Cd>Cu>Mn = Zn. An addition of only 8.6 ppm of Cr to this soil is sufficient to inhibit CO/sub 2/ evolution by 10 percent, whereas the addition of about 27 ppm of Pb would be required to produce the same effect.

• Research Organization: University of California, Davis
• OSTI ID: 5860100
• Journal Information: Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 132:6; ISSN SOSCA
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINO ACIDS
CADMIUM
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATING AGENTS
CHEMISTRY
CHROMIUM
COPPER
DRUGS
DTPA
ELEMENTS
ENVIRONMENTAL EFFECTS
LEAD
LOAM
MANGANESE
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PRODUCTION
RADIOPROTECTIVE SUBSTANCES
SOIL CHEMISTRY
SOILS
TOXICITY
TRANSITION ELEMENTS
ZINC