Idioma:

Laboratory Measurement of Hazardous Fumes and Gases at a Point Corresponding to Breathing Zone of Welder during a CO2 Arc Welding

SAITO, Hiroyuki ; OJIMA, Jun ; TAKAYA, Mitsutoshi ; IWASAKI, Takeshi ; HISANAGA, Naomi ; TANAKA, Shigeru ; ARITO, Heihachiro

Industrial Health, 2000, Vol.38(1), pp.69-78 [Periódico revisado por pares]

Japan: National Institute of Occupational Safety and Health

Texto completo disponível

Citações Citado por

Enviar para

Título:
Laboratory Measurement of Hazardous Fumes and Gases at a Point Corresponding to Breathing Zone of Welder during a CO2 Arc Welding
Autor: SAITO, Hiroyuki ; OJIMA, Jun ; TAKAYA, Mitsutoshi ; IWASAKI, Takeshi ; HISANAGA, Naomi ; TANAKA, Shigeru ; ARITO, Heihachiro
Assuntos: Air Pollutants, Occupational - analysis ; Carbon monoxide ; Carbon Monoxide - analysis ; Chromium ; Chromium - analysis ; CO2 arc welding ; Combined exposure ; Humans ; Manganese ; Manganese - analysis ; Nitric oxide ; Nitric Oxide - analysis ; Ozone ; Ozone - analysis ; Particle Size ; Welding ; Welding fumes
É parte de: Industrial Health, 2000, Vol.38(1), pp.69-78
Descrição: Concentrations of fumes, ozone (O3), carbon monoxide (CO), nitric oxide (NO), manganese (Mn) and total and hexavalent chromium (Cr) as well as size distribution of fumes were measured at a point corresponding to the welder's breathing zone during CO2-arc welding, using a welding robot and three kinds of wires. Concentrations of fumes, O3, CO, Mn and total-Cr were found to exceed their corresponding occupational exposure limit (OEL) values, while the concentrations of NO and Cr(VI) were below those OEL levels. Airborne concentration of Mn exceeded its OEL value, and the Mn content was 8 times higher in welding fumes than in the wire. Using an additive equation of OEL and exposure concentration of each hazardous component, health risk in welders with combined exposure to welding fumes and gases was assessed as 18.6 to 46.0 times of OEL, which exceeded the unity. This finding suggests that effective protection of welders from the exposure can be attained by use of the supplied-air respirator or combined use of a dust respirator and a local exhaust system.
Editor: Japan: National Institute of Occupational Safety and Health
Idioma: Inglês

Links

View this record in MEDLINE/PubMed

Voltar para lista de resultados

Resultado 1

Realização: Logos de Redes Sociais:

Laboratory Measurement of Hazardous Fumes and Gases at a Point Corresponding to Breathing Zone of Welder during a CO2 Arc Welding

SAITO, Hiroyuki ; OJIMA, Jun ; TAKAYA, Mitsutoshi ; IWASAKI, Takeshi ; HISANAGA, Naomi ; TANAKA, Shigeru ; ARITO, Heihachiro

Japan: National Institute of Occupational Safety and Health

Buscando em bases de dados remotas. Favor aguardar.