Efectele plumbului asupra organismelor vii

Abstract

This paper is a short review of the main changes induced by lead in living bodies. A big number of studies have shown that heavy metals such as mercury, lead, or cadmium, affect chemical synaptic transmission within central and peripheral nervous system, while copper can determine severe disturbances in the cells. The USFDA, European Union and various other regulatory bodies around the world strictly regulate the allowable concentrations of heavy metal contaminants in foodstuffs, drugs and cosmetics. Most regulations place the acceptable limits for these traces metal contaminates in the few ppm to sub-ppm levels. Many of accredited laboratories perform the analysis of multiple metals by atomic absorption spectroscopy (AAS) and inductively coupled plasma - atomic emission spectroscopy (ICPAES). The literatures propose for heavy metal analysis X-ray fluorescence spectroscopy and other biological procedures, too