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Mercury |
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Mercury and its compounds exist in three general forms:
- Elemental (or metallic).
- Inorganic. Mercury can combine with other elements (mainly chlorine, sulfur, and oxygen) to form inorganic mercury compounds.
- Organic. Mercury may combine with carbon or carbon-containing substances to make organic mercury compounds. These organic compounds
are further divided between alkyl (carbon-chain) and aryl (aromatic ring) groups.
The respective methods for sampling the different forms of mercury are:
Elemental
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Chemical
Sampling Information. OSHA. Presents in concise
form, data on a large number of chemical substances that may be encountered in
industrial hygiene investigations. Acts as a basic reference for
industrial hygienists engaged in OSHA field activity.
- Mercury
Vapor in Workplace Atmospheres. OSHA Method ID-140, (1991, June). Describes the collection of airborne elemental mercury
in a passive dosimeter or active sampling device and subsequent analysis
using a cold vapor-atomic absorption spectrophotometer.
- Particulate
Mercury in Workplace Atmospheres. OSHA Method ID-145, (1989,
December). Describes the collection of airborne particulate
mercury on 0.8-µm mixed-cellulose ester membrane filters and
the subsequent analysis using a cold vapor-atomic absorption
spectrophotometer.
- Mercury. National Institute for Occupational Safety
and Health (NIOSH) Manual of Analytical Methods (NMAM)
Method 6009, (1994, August 15),
24 KB
PDF, 5 pages.
Describes the elemental mercury vapor sampling and measurement.
Aryl and Inorganic
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Chemical
Sampling Information. OSHA. Presents in concise
form, data on a large number of chemical substances that may be encountered in
industrial hygiene investigations. Acts as a basic reference for
industrial hygienists engaged in OSHA field activity.
Organomercury (Alkyl Compounds)
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Chemical
Sampling Information. OSHA. Presents in concise
form, data on a large number of chemical substances that may be encountered in
industrial hygiene investigations. Acts as a basic reference for
industrial hygienists engaged in OSHA field activity.
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