Chevron gets fined a million but earns a billion; noise hazards found at both hockey arenas and foundries; Solis and LaHood step down and yet another explosion at a rural Texas oil site injures members of the public. Here are the week's top EHS-related stories as featured on ISHN.com:

ACGIH® announced that its Board of Directors ratified the 2013 Threshold Limit Values (TLVs®) for Chemical Substances and Physical Agents and Biological Exposure Indices (BEIs®). The Board also approved recommendations for additions to the Notice of Intended Changes (NIC).

“Working Safely with Nanomaterials” is a new four-page PDF fact sheet published by OSHA. According to the fact sheet: “Workers who use nanotechnology in research or production processes may be exposed to nanomaterials through inhalation, skin contact, or ingestion.

In the two years that a proposed rule to protect workers from exposure to dangerous levels of silica dust on the job has been held up by the White House, more than 100 workers have died and thousands have been sickened by preventable exposure to silica dust.

Increasingly, businesses are outsourcing their activities and processes. But what implications does the growing importance of supply chains have for working conditions? A new report from the European Agency for Safety and Health at Work (EU-OSHA) sheds light on occupational safety and health (OSH) within these complex networks of suppliers and service providers.

Want to compare your salary with those of your fellow safety professionals? The Board of Certified Safety Professionals (BCSP) has released results of a salary survey conducted in conjunction with the American Society of Safety Engineers (ASSE).

From OSHA Chief Dr. David Michaels talking to his troops to mixed reactions to a proposed fee on greenhouse gas emitters, here are the top OEHS-related news stories of the week as featured on ISHN.com:

A recent ruling by the U.S. Supreme Court means that employers “should not accept an OSHA citation alleging violations more than six months old,” according to two lawyers who specialize in occupational safety and health law.

With $4.6 trillion in cuts proposed over the next decade, it’s difficult to predict what effect Rep. Paul Ryan’s ambitious GOP budget plan would have on specific programs and agencies, such as OSHA, the Mine Safety and Health Administration (MSHA) and the National Institute for Occupational Safety and Health (NIOSH).