点击数： 更新时间：2010-4-20 10:00:23
The toxic effects of lead have been well established and welldocumented for centuries. However, there isstill no conclusion on the regulation of the acceptable lead exposure limit. The value of the acceptable bloodlead level has progressively decreased in recent years. Therefore, the borderline between acceptable environmental and occupational exposure limit is becoming difficult to identify. Since the adverse neurological and reproductive effects on the children with a very low blood lead level has raised great attention over the years, it is necessary to re-evalute the possibility of lead mobilization for the bone and soft tissues, and to emphasize the risk of pregnancy and lactation when a mother has had occupational lead exposure before or during pregnancy. Therefore, from the public health and occupational health perspectives, there is an urgent need to discuss the issue of decreasing the acceptable exposure limit for lead.