Variation of cadmium concentration in Swedish wheat and barley. An indicator of changes in daily cadmium intake during the 20th century.
作者： Tord Kjellström , Birger Lind , Lars Linnman , Carl-Gustaf Elinder
DOI: 10.1080/00039896.1975.10666714
关键词: Cumulative effect 、 Cadmium 、 Animal science 、 Air contamination 、 Agronomy 、 Biology
摘要: In order to evaluate whether or not an increase in daily cadmium intake may be taking place, 75 wheat samples (spring and fall wheat) harvested from the same “nonpolluted” farm fields between years 1916 1972 were analyzed. The individual scatter was large but a significant (P<.05) tendency toward increasing concentration with time evident for wheat. A similar found spring wheat, though statistical significance. This explained by general air contamination cumulative effect of fertilizers. There clear covariation concentrations different genotypes barley year despite yearly variations average concentration.
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