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- Title
Carbon monoxide levels at a toll plaza near Durban, South Africa.
- Authors
Diab, R.; Foster, S.; François, K.; Martincigh, B.; Salter, L.
- Abstract
Reliable measurements of pollutant levels in the vicinity of a toll plaza appear to be rare. In order to assess the exposure of toll booth operators to carbon monoxide, a continuous carbon monoxide monitor was installed at head height in the booth of a medium density traffic lane at the Mariannhill toll plaza, situated on a busy highway near Durban, South Africa. Measurements in excess of 500 ppmv were recorded and the high daily mean carbon monoxide concentrations may account for some of the symptoms such as headaches and general malaise that have been reported by workers in the booths. Generally, carbon monoxide levels recorded far exceed the recommended limit set by the South African authorities. These results have led to recommendations regarding the structure of new and existing toll booths to minimize the exposure of toll booth workers to adverse effects of vehicle-emitted pollutants.
- Subjects
DURBAN (South Africa); SOUTH Africa; CARBON monoxide; POLLUTANTS; TOLL plazas; ENVIRONMENTAL chemistry
- Publication
Environmental Chemistry Letters, 2005, Vol 3, Issue 2, p91
- ISSN
1610-3653
- Publication type
Article
- DOI
10.1007/s10311-005-0111-1