|Document ID (ISN)||74297|
|ISSN - Serial title
||0019-8366 - Industrial Health
|Convention or series no.
||Carelli G., Masci O., Altieri A., Castellino N.
||Occupational exposure to lead - Granulometric distribution of airborne lead in relation to risk assessment
||July 1999, Vol.37, No.3, p.313-321. Illus. 18 ref.
||The Permissible Exposure Limit for lead of 50µg/m3 set by the US Occupational Safety and Health Administration (OSHA) is based on a number of assumptions, including that which predicts that the first 12.5µg/m3 are made up of fine particles of less than 1µm diameter and the remaining 12.5mgg/m3 consist of particles >1µm. Occupational exposure to airborne lead at a concentration of 50µg/m3 and a granulometric distribution as above leads to a mean blood level of 40µg/m3. The validity of OSHA's assumption was tested in a factory that manufactured crystal glassware containing 24% lead oxide. Results indicate that the assumption cannot be considered valid in the work environment investigated in this study and that lead absorption levels in exposed workers may be noticeably different from those predicted by the OSHA model. It is therefore essential to integrate total airborne lead concentration with a measurement of the granulometric distribution of the aerosol.
||airborne dust; particle size distribution; glass industry; hazard evaluation; lead
||exposure evaluation; determination in air; size distribution determination
||D - Periodical articles
|Country / State or Province||Italy|
||Toxic and dangerous substances
|Broad subject area(s)
Glass, pottery and related materials
Lead and compounds