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Commission, says that inadequate scientific information on lead poisoning prevents setting a more precise, scientific standard at this time.
Special emphasis, says the report, should be given to learning the lead absorption rate of children, the primary victims of lead poisoning. Between the ages of one and six, many children develop pica --the desire to chew cribs, toys, furniture, and woodwork and to eat painted plaster and fallen paint flakes. Pica is a major problem in older housing where paints containing up to 50% lead were used. It is so common, according to one estimate, that 600 000 US children would show increased blood lead content if tested. The report also notes that little is known about the chemical significance of increased blood lead content in children and suggests that further research investigates possible physical and behavioural effects.
๐ SIMILAR VOLUMES
A pocket calculator program is described which facilitates rapid evaluation of pulmonary function at rest and during exercise. It embodies the Fick Principle applied to carbon dioxide ; mixed venous carbon dioxide tension is measured by rebreathing, obviating the need for central venous or pulmonary