Fig. 5.
Central tendency and dispersion of mass airborne particles measured by ELPI (Stages 1–14). SMAW: Shielded Metal Arc Welding; GTAW: Gas Tungsten Arc Welding; E.E.: external environment.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.