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Development of a test-tube stress-ethylene bioassay for detecting phytotoxic gases | Development of a test-tube stress-ethylene bioassay for detecting phytotoxic gases
1982
Craker, L. E. | Fillatti, J. J.
A rapid, quantitative bioassay for detecting phytotoxic air pollutants has been developed. The technique uses wheat Triticum aestivum L. or tomato Lycopersicon esculentum L., seedlings growing on an agar medium in test-tubes. The seedlings are exposed to a pollutant in the test-tube and stress-ethylene induced by the pollutant is quantitatively measured by gas chromatography. Increases in ethylene production from seedlings exposed to a phytotoxic air pollutant as compared with controls not exposed to pollutants were related to the pollutant concentration.
Afficher plus [+] Moins [-][Animals as carriers of information on the environment [use of mayfly larvae (Baetis rhodani) as indicator species in monitoring of inland water acidification]]
1982
Raddum, G.G. | Fjellheim, A. (Bergen Univ. (Norway). Zoologisk Museum)
Performance and trace metal content of crambe and kenaf grown on sewage sludge-treated stripmine land
1982
Carlson, K.D. | Cunningham, R.L. | Garcia, W.J. | Bagby, M.O. | Kwolek, W.F.
Crambe Crambe abyssinica and kenaf Hibiscus cannabinus were grown for 3 years on stripmine land in three replications of the four treatments: control (no soil amendment); added commercial fertiliser; and two levels of digested sewage sludge (42% solids at the rate of 112 and 224 metric tons ha-1). Favourable growth responses to sludge and commercial fertiliser were observed with both crops, although performance of crambe on the sludge-treated plots were adversely affected by weed competition. The yield of kenaf increased with sludge amendment of the soil. Concentrations of eight metals (Fe, An, Mn, Cu, Pb, Cr, Cd, and Hg) in crambe seed were unaffected by plot treatment, but kenaf stems appeared to accumulate higher metal concentrations with soil amendment by sewage sludge. Neither crambe seed nor kenaf stalks accumulated unusual quantities of these metals, and thus neither crop would be expected to remove significant quantities of metals from soils. Metal concentrations of both soil and sludge samples were determined to evaluate translocation of metals to both crops.
Afficher plus [+] Moins [-]Air pollution--physiological effects
1982
McGrath, James J. | Barnes, Charles D.
The effects of air pollution and acid rain on fish, wildlife, and their habitats
1982
Olson, James E.
The effects of air pollution and acid rain on fish, wildlife, and their habitats
1982
Mirsky, Edward N. | Harper, Dan
The effects of air pollution and acid rain on fish, wildlife, and their habitats
1982
Borghi, Louis
The effects of air pollution and acid rain on fish, wildlife, and their habitats
1982
Peterson, M. A.
The effects of air pollution and acid rain on fish, wildlife, and their habitats
1982
Peterson, M. A.
Air pollution by nitrogen oxides
1982
Schneider, T. (Tonny) | Grant, Lester D.
