Environmental lead exposure to toll booth workers in Hong Kong
- Chinese Univ. of Hong Kong, Shatin
A survey of workers in the Lion Rock Tunnel toll booths was conducted, as they were regarded as a high risk group in lead exposure due to high density of vehicular traffic. The exposure of the workers to lead was determined by continuous sapling of air around the breathing zone of workers inside the booths. Blood lead concentration of 50 workers showed a mean of 0.65 {mu}mol/L and the mean urine lead concentration was 0.14 {mu}mol/L. Other tests, such as urinary amino-levulinic acid (ALA), erythrocyte zinc protoporphyrin (ZnPP) and hemoglobin concentration (Hb), were also preformed. The blood lead concentrations and other biological parameters of the toll-booth workers were acceptable and may be attributed to the recent legislation to lower the lead content in petrol and to the good preventive measures taken by the management.
- OSTI ID:
- 5444779
- Journal Information:
- Environment International; (USA), Journal Name: Environment International; (USA) Vol. 14:6; ISSN 0160-4120; ISSN ENVID
- Country of Publication:
- United States
- Language:
- English
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540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION MONITORING
ASIA
AUTOMOBILES
BIOLOGICAL ACCUMULATION
ECOLOGICAL CONCENTRATION
ELEMENTS
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HAZARDS
HEALTH HAZARDS
HONG KONG
LEAD
METALS
OCCUPATIONAL EXPOSURE
PERSONNEL
VEHICLES
WASTES