Mercury exposure assessment in Iranian women's hair of a port town with respect to fish consumption and amalgam fillings.
ABSTRACT: in this study we aimed to evaluate the maternal factors [including dietary habits and dental care, during pregnancy and number of children] that influence milk, hair and saliva mercury concentration. Forty healthy mothers were enrolled in the study in order to take milk, hair and saliva samples. The mean mercury concentration milk, hair and saliva of mothers were 1.23 (μg/g), 1.81 (μg/g) and 1.10(μg/g) respectively. The analysis showed that fish consumption, chewing gum, maternal weight and number of dental amalgam fillings were the factors which had positive correlation with mercury concentration of mothers. The effect of the factors number of children, during pregnancy, fruit consumption and birth weight infants had negative relation on mercury levels of mothers. Preventive strategies for mercury exposure should include, consume appropriate amounts of fishes with low mercury, more of the dental care and proper nutrition during the pregnancy period.