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J Cumbrowski

Publications and source records attributed to J Cumbrowski.

14 recordsLinked to original sources
PubMed1981

[Cadmium constant of food and human organs in one large city].

The cadmium contents of commercial foods and of meal samples from a factory canteen were examined over a period of 2 years and of 4 months, respectively. Furthermore, the cadmium contents of human organ samples obtained at necropsy were determined. The samples were subjected to wet digestion and analyzed by atomic absorption spectrophotometry. The value found for the cadmium intake by foods did not differ from international data. On the basis of the average cadmium values from the present investigation and of the per capitum consumption of the GDR population, the authors calculated a weekly cadmium intake from the major foods that amounts to approximately 50% of the WHO/FAO value. The cadmium contents of the human organ samples obtained at necropsy were somewhat lower than those from comparable foreign studies.

Brain Chemistry↗
PubMed1980

[Heavy metal content of cereals and potatoes].

By means of atomic absorption spectrometry, the authors determined the cadmium, zinc, copper and manganese contents in potatoes and cereals from three territories differently burdened by heavy-metal immissions (rural region, overcrowded urban region, region with non-ferrous metal industry). Of these elements, cadmium was most enriched, followed (by a wide margin) by zinc and copper, whereas the manganese level was slightly higher in the burdened region II (compared to the burdened region I) and somewhat lower in the burdened region III. Compared to normal values (0.035--0.080 p.p.m.), i. e., values found in non-burdened regions, the cadmium contents were some 2- to 6-fold higher in air-dry samples of wheat, barley and rye from the burdened regions, some 30-fold higher in oats, and some 3- to 4-fold higher in potatoes (normal values, on a dry-weight basis, (0.140 p.p.m.). As to cereals, the zinc levels were, at the most, some 2-fold higher than the normal values (29--34 p.p.m.), the copper contents were, at the most, some 1.5-fold higher than the normal values (4.1 bis 4.8 p.p.m.), whereas the manganese levels (normal values, 14--30 p.p.m.) were less by half. In potatoes, the zinc contents were but slightly higher than the normal values (18.5 p.p.m., on a dry-weight basis), the copper levels (4.6 p.p.m., on a dry-weight basis) were some 2-fold higher, and the manganese contents (7.2 p.p.m., on a dry-weight basis) were somewhat reduced. On an average 26% (region with non-ferrous metal industry) or 13% (normal region) of the heavy metals are removable from potatoes by washing. On the basis of the results obtained and of data from the literature, an estimate is calculated for the expected values in territories differently burdened by heavy-metal immissions. Finally, targeted suggestions are given for preventing or impeding the entrance of heavy metals into the biocycle.

Cadmium↗
PubMed1979

[Chromium--its community hygienic importance].

The present contribution is a literature survey of the presentday knowledge of the chromium contamination of the biosphere. It gives an insight into the absorption mechanism, accumulation and toxicity of chromium in man, and deals with its tolerance. Preliminary investigations into the chromium distribution and burden in the territory of the GDR are presented.

Chromium↗
PubMed1979

[Cadmium content of vegetable foods in the effective range of a lead smelting plant].

In the effective range of a lead smelting plant, the repercussions of cadmium emissions (mainly past) on vegetables, fruit, soil and drinking water as well as of immissions were investigated by means of atomic absorption spectrometry. As compared to the "normal" cadmium level, the cadmium contents in vegetables and fruit were some 2- to 85-fold higher; and those in soils, some 70- to 230-fold. The mean contents in vegetables ranged from 0.4 to 25.5 p.p.m. (on a dry-weight basis); those in fruit, from 0.09 to 1.17 p.p.m. Cadmium concentrations varying from 6.8 to 22.8 p.p.m. were found in soil samples. The drinking water contained 0.009 p.p.m. of cadmium. The mean cadmium contents in the atmosphere and the sedimentary dust were 0.007 mg/m3 and 0.550 mg/m2/30d, respectively. In the territory investigated, the total human uptake of cadmium supplied by vegetables, fruit, potatoes, drinking water and air is 3.3-32.6 microgram/d. The following cadmium levels were found in human organ samples obtained at necropsy: right and left renal cortex, 33.99 and 35.98 p.p.m., respectively; liver, 3.14 p.p.m.; lungs, 0.63 p.p.m.; pancreas, 1.47 p.p.m.; brain stem, 0.16 p.p.m.

Brain Stem↗