industrial Hygiene and toxicology

Formaldehyde
Naphthalene
Hexavant Chromium

Provide the following information to each of the above Materials

1. Brief description of the chemical of concerns
2. Route of Exposure
3. Applicable exposure limits
4. Types of industries that you would find these chemicals
5. Types of PPE required
6. The NIOSH or Sampling method & number
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