NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Welding fumes

CAS
ZC2550000


RTECS
Synonyms & Trade Names

Synonyms vary depending upon the specific component of the welding fumes.
DOT ID & Guide

Exposure
Limits

NIOSH REL: Ca See Appendix A
OSHA PEL: none
IDLH
Ca [N.D.] See: IDLH INDEX
Conversion
Physical Description
Fumes generated by the process of joining or cutting pieces of metal by heat, pressure, or both.
Properties vary depending upon the specific component of the welding fumes.











Incompatibilities & Reactivities

Varies
Measurement Methods
NIOSH 7300, 7301, 7303
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation

First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support

Respirator Recommendations
NIOSH
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
Exposure Routes
inhalation, skin and/or eye contact
Symptoms
Symptoms vary depending upon the specific component of the welding fumes; metal fume fever: flu-like symptoms, dyspnea (breathing difficulty), cough, muscle pain, fever, chills; interstitial pneumonitis; [potential occupational carcinogen]
Target Organs
Eyes, skin, respiratory system, central nervous system

Cancer Site
[lung cancer]
See also: INTRODUCTION