NIOSH ALERT: July 1985

DHHS (NIOSH) Publication No. 85-112



WARNING!

Fire departments and teams responding to incidents involving flammable gas or vapor mixtures are cautioned that the use of water spray (fog) streams to prevent ignition or control flame propagation may be extremely dangerous:



Significant fires or explosions can occur despite the use of water spray. Under certain conditions, the use of water spray may in fact increase the severity of such fires… Continue

Beads, vapor characteristics make step-wise cleanup vital



Since the early 1990s, U.S. environmental regulations have eliminated the development of mercury as a new product. Despite these changes targeting mercury use, alternatives have been slow to develop, and in cases such as precision measurement devices are not possible. As a result, mercury has been mined through reclamation and recycling processes.

Consumers can still find mercury in high-pressure sodium lamps, fluorescent… Continue