[Application of the data from China Total Diet Study to assess the distribution of lead exposure in different age-gender population groups].
OBJECTIVE
To assess the distribution of dietary lead exposure in different age-gender groups of Chinese residents by using the data from China Total Diet Study, and combining the new risk assessment and the PTWI withdrawn by JECFA. Methods Combining the lead concentrations of dietary samples with the food consumption data from China Total Diet Study in 2007 to obtain the distribution of dietary intake and dietary source of lead in different age-gender population groups.


RESULTS
Dietary lead exposure of different age-gender population groups in China was in the range of 48.7 -116.7 microg/d. The status of higher lead exposure in younger age groups was not optimistic, as the mean and median margins of exposure (MOE) have been less than 1.0 (0.1 - 0.3). The main sources of dietary lead were cereals and vegetables, which covering 57% of total lead exposure.


CONCLUSIONS
Lowering the dietary lead exposure of Chinese residents is necessary, especially of infants and children.
National Institute for Nutrition and Food Safety, China Center for Disease Control and Prevention, Beijing 100021, China. eveline73@vip.sina.com
Xiaowei
X
Li
Qing
Q
Liu
Liping
L
Liu
Yongning
Y
Wu
D002648:Child; D002681:China; D004032:Diet; D004034:Diet Surveys; D002523:Edible Grain; D005260:Female; D005506:Food Contamination; D006801:Humans; D007223:Infant; D007854:Lead; D008297:Male; D010820:Physicians; D044382:Population Groups; D018570:Risk Assessment; D014675:Vegetables
D007854:Lead