Analyse multiparamétrique de la composition minérale des pollens d'une population de<i>Bactris gasipaes</i>(Arecaceae)

The aim of the study was to examine the potential of multidimensional analysis, and in particular of correspondence analysis (CA), in bringing to light the influence of sex and age on trace element (TE) concentrations in hair from an unselected French population. Sixteen elements (S, Hg, Se, Zn, Pb, Cd, Ni, Co, Mn, Fe, Cr, Mg, Al, Ca, Cu, Ag) were assayed by inductively coupled argon plasma (ICAP) emission spectroscopy in the scalp hair of 135 men and 346 women. In spite of the high background noise, CA was able to reveal the differing patterns in males and females. For instance, in this population, higher relative levels of the essential elements, Ca, Mg, Zn, and Cu, but also of Ag, characterized women's hair, whereas higher relative levels of the heavy metals, Fe and Pb, were associated with men's hair. Al and Ag were unexplainedly high in the hair of the youngest members of the population. The Cu and Co of youth seemed to give way to a predominance of Zn in maturity. The hair of individuals in their forties tended to be richest in Ca and Mg, but these elements decreased with advancing age. Heavy metals (Hg, Pb, Fe) accumulated with age, whereas Se, Mn, and Cr seemed independent of age. CA is manifestly a very useful tool for revealing underlying dimensions in complex dynamic systems and unsuspected relationships among variables. Clearly, the significance of the high Al and Ag contents in the hair of certain members of the population, especially of the very young, needs to be investigated from both physiological and toxicological aspects.

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Study of the age and sex dependence of trace elements in hair by correspondence analysis

Zakrgynska-Fontaine

Doré

Ojasoo

et al. 1998

Biol Trace Elem Res

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Oleksyn

Karolewski

Chalupka

et al. 1999

Water, Air, and Soil Pollution

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Multivariate Analysis of Metal Concentration Profiles in Mushrooms

Siobud-dorocant

Doré

Michelot

et al. 1999

SAR and QSAR in Environmental Research

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The present work is an overview of the levels of contamination of 92 macromycetes by 15 metals. Data were collected around Paris (France) in 1989 and 1990. A progressive approach involving the use of univariate followed by multivariate statistical analyses allowed to fully exploit the resulting data matrix. Thus, conclusions regarding the origin of the metals, the toxicological implications and the possible use of mushrooms as environmental markers of pollutions are drawn.

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Analyse multiparamétrique de la composition minérale des pollens d'une population deBactris gasipaes(Arecaceae)

Cited by 3 publications

References 4 publications

Study of the age and sex dependence of trace elements in hair by correspondence analysis

Study of the age and sex dependence of trace elements in hair by correspondence analysis

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Multivariate Analysis of Metal Concentration Profiles in Mushrooms

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