[Nutritive value of daily food rations reproduced in several regions of Poland. Part VII. Evaluation of cobalt, chromium, nickel and selenium intakes].

On the basis of the data of the Chief Census Bureau, concerning the consumption of more than 80 food products, we reproduced in years 1987 and 1988 in Lublin, Olsztyn, Poznań, Warszawa and Wrocław the food rations characteristic of manual workers' families and of other families with medium incomes. In samples of these diets, chromium, cobalt and nickel were determined by the ASA method, and selenium-spectrophotometrically. Daily intakes were: for cobalt 15-32 micrograms, chromium 65-187 micrograms, nickel 138-316 micrograms and selenium 93-233 micrograms.

[Evaluation of heavy metal contamination of potatoes from various regions of Poland].

Mercury, cadmium and lead contents were determined in 210 samples of potatoes of five cultivars, originating from four regions of Poland (Tarnobrzeg Province, Southern Region, Middle-Eastern Region, Poznań Province). Analysis was performed by the ASA method. Cadmium and lead were determined by the extraction technique, after metal complexing with APDC.

[Evaluation of cadmium, mercury and lead intake with reproduced weekly food rations].

In Lublin, Olsztyn, Poznań, Warszawa and Wrocław, weekly food rations characteristic of families other than those of manual workers, with medium incomes, were reproduced. Food rations comprised ca. 90 food products whose average weekly intakes were established consistently with the results of questionnaires of the Chief Census Bureau.

[Evaluation of cadmium, mercury and lead intake with daily food rations].

Using the data of the Central Statistical Bureau concerning the consumption of about 90 basic food products daily food rations were reproduced as taken by medium-income worker families. The diets were reproduced in Lublin, Olsztyn, Poznań, Warsaw and Wrocław determining in them cadmium, mercury and lead by atomic absorption spectrophometry. It was found that weekly intake of cadmium with food rations was in the range from 133 to 189 mcg, that of lead was 504 to 952 mcg, and mercury from 61.