Response of tomato plants to simulated landfill gas mixtures
The roots of tomato plants were fumigated with simulated refuse-generated gas mixtures at levels of methane (CH/sub 4/), carbon dioxide (CO/sub 2/), and oxygen (O/sub 2/) previously measured in the atmospheres of landfill cover soils associated with poor growth or death of plants. A concentration of 18% CO/sub 2/ or greater, exceeded in almost 30% of thirty-two landfills examined throughout the US, caused reduced growth and visible symptoms on tomato after 1 wk, regardless of O/sub 2/ level. Doubling the CO/sub 2/ level to that encountered in a typical local site (Edgeboro Landfill) resulted in more severe symptom development and the subsequent death of plants. Methane, in concentrations of 20% and above, found in more than 25% of the landfills visited, while not observed to be toxic per se; was associated with drastic O/sub 2/ depletion in the soil atmosphere, which activity was believed to be the cause of the plant decline.
- Research Organization:
- Cook College, New Brunswick, NJ
- OSTI ID:
- 6033099
- Journal Information:
- J. Environ. Sci. Health, Part A; (United States), Vol. A20:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
CARBON DIOXIDE
TOXICITY
METHANE
BIOLOGICAL EFFECTS
SANITARY LANDFILLS
SOIL CHEMISTRY
TOMATOES
GROWTH
PATHOLOGICAL CHANGES
MIXTURES
OXYGEN
SIMULATION
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMISTRY
DISPERSIONS
ELEMENTS
FOOD
FRUITS
HYDROCARBONS
MANAGEMENT
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
WASTE DISPOSAL
WASTE MANAGEMENT
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)
510200 - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)