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Biomedical subjects

C A Bache

Publications and source records attributed to C A Bache.

At least 55 records · Page 3Linked to original sources
PubMed1975

Elemental analysis of honey as an indicator of pollution. Forty-seven elements in honeys produced near highway, industrial, and mining areas.

Nineteen samples of honey taken from grocery shelves, near zinc mines, adjacent to an industrial area, and near a major highway, and one sample collected in 1899 were subjected to spark source mass spectrometry to determine the concentration of most of 47 elements in the honey. Certain samples of honey produced by bees in the vicinity of the New York State Thruway appeared to contain elevated levels of certain elements known to be emitted by traffic, such as aluminum, barium, calcuim, copper, magnesium, nickel, palladium, and silicon, but the true source of these elements was uncertain. Honey that had come into contact with metal containers in processing contained the greatest amounts of zinc and tin.

Air Pollution↗
PubMed1975

Multielement residues in tissues of guinea pigs fed sweet clover grown on fly ash.

Yellow sweet clover (Melilotus officinalis) was harvested from fly ash dumped in a landfill site at Lansing, NY. This clover was chopped, dried, and formulated at 45% into an otherwise purified diet and fed to six guinea pigs for 90 days. Control sweet clover was harvested from gravelly subsoil and processed and fed to another group of guinea pigs for the same period. Samples of fly ash, gravelly subsoil, sweet clover, liver, kidneys, and left-rear gastrocnemius muscle of all guinea pigs were freeze-dried and analyzed for 35 elements by neutron activation analysis. The fly ash contained 28 elements at higher levels than the gravelly subsoil, while the clover harvested from fly ash contained 19 elements in increased amounts over those in the clover harvested from the gravel soil. Growth rate of both groups of guinea pigs was similar. Rubidium and selenium were present at higher levels in the tissues of guinea pigs fed the fly ash clover.

Agriculture↗
PubMed1972

Polychlorinated biphenyl residues: accumulation in Cayuga Lake trout with age.

The concentration of polychlorinated biphenyls was shown to progressively increase with maturity in a series of lake trout. The presence of these compounds was determined by column chromatographic isolation, specific detector gas chromatography and mass spectrometry. The relation between fish age and the concentration of polychlorinated biphenyls was highly significant.

Age Factors↗
PubMed1971

Eggshell thinning in Japanese quail fed mercuric chloride.

The eggs produced by developing Japanese quail (Coturnix coturnix japonica) fed 1 to 8 parts of mercury per million as mercuric chloride for 10 weeks have thinned shells. Total amounts of mercury in tissues were quite proportional to the dosage and were higher in males than in females. Methylation of mercury was not observed.

Animals↗
PubMedDate not supplied

National survey of elements and radioactivity in municipal incinerator ashes.

An analytical survey of fly ashes, bottom ashes and mixtures of the two for 36 elements, soluble salts and radioactivity was conducted. The ashes were taken from approximately one-fourth of the municipal solid waste incinerators presently operating in the United States. The concentrations of a number of toxic elements such as As, Cd, Cr, Cu, Hg, Ni, Pb, Sb, and Zn in specific ashes were high. The levels of radioactivity were not significant from a health standpoint. A number of ashes were exceedingly high in organic matter, indicating grossly inadequate conditions during incineration. Soluble salt content was appreciable in the ashes. The possible sources of elements in refuse and their behavior and fate during refuse incineration are discussed with respect to their chemical forms and properties and incinerator operating parameters. Variability of metal concentrations in ash with time of sampling and their solubilization in landfills are also considered.

Carbon↗