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Titolo:
Dust and gas exposure in tunnel construction work
Autore:
Bakke, B; Stewart, P; Ulvestad, B; Eduard, W;
Indirizzi:
Natl Inst Occupat Hlth, N-0033 Oslo, Norway Natl Inst Occupat Hlth Oslo Norway N-0033 upat Hlth, N-0033 Oslo, Norway NCI, Rockville, MD 20852 USA NCI Rockville MD USA 20852NCI, Rockville, MD 20852 USA Selmer ASA, N-0107 Oslo, Norway Selmer ASA Oslo Norway N-0107Selmer ASA, N-0107 Oslo, Norway
Titolo Testata:
AIHAJ
fascicolo: 4, volume: 62, anno: 2001,
pagine: 457 - 465
SICI:
1529-8663(200107/08)62:4<457:DAGEIT>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIESEL EXHAUST; INDUSTRY; DISEASE; HEALTH; ASTHMA; AIRWAYS; RISKS; FUEL;
Keywords:
alpha-quartz; epidemiology; exposure assessment; nitrogen dioxide; oil mist; tunnel;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Bakke, B Natl Inst Occupat Hlth, POB 8149 Dep, N-0033 Oslo, Norway Natl Inst Occupat Hlth POB 8149 Dep Oslo Norway N-0033 o, Norway
Citazione:
B. Bakke et al., "Dust and gas exposure in tunnel construction work", AIHAJ, 62(4), 2001, pp. 457-465

Abstract

Personal exposures to dust and gases were measured among 189 underground construction workers who were divided into seven occupational groups performing similar tasks in similar working conditions: drill and blast crew; shaft-drilling crew; tunnel-boring machine crew; shotcreting operators; supportworkers; concrete workers; and electricians. Outdoor tunnel workers were included as a low-exposed reference group. The highest geometric mean (GM) exposures to total dust (6-7 mg/m(3)) and respirable dust (2-3 mg/m(3)) werefound for the shotcreters, shaft drillers, and tunnel-boring machine workers. Shaft drillers and tunnel-boring machine workers also had the highest GM exposures to respirable a-quartz (0.3-0.4 mg/m(3)), which exceeded the Norwegian occupational exposure limit (OEL) of 0.1 mg/m(3). Shaft drillers had the highest exposure to oil mists (GM=1.4 mg/m(3)), which was generated mainly from pneumatic drilling. For other groups, exposure to oil mist from diesel exhaust and spraying of oil onto concrete forms resulted in exposures of 0.1-0.5 mg/m(3). Exposure to nitrogen dioxide was similar across all groups (GM=0.4-0.9 ppm), except for shaft drillers and tunnel-boring machineworkers, who had lower exposures. High short-term exposures (> 10 ppm), however, occurred when workers were passing through the blasting cloud.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/21 alle ore 16:17:37