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Chemical Sampling Information (CSI)
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General Description

Synonyms: Dust (respirable nuisance); "Inert" dusts; Nuisance dusts; PNOR (Note: includes all inert or nuisance dusts, whether mineral, inorganic, not listed specifically in 1910.1000)

OSHA IMIS Code Number: 9130
(IMIS Name History: Dust [respirable nuisance] prior to 9/1/89)

NIOSH Pocket Guide to Chemical Hazards - Particulates Not Otherwise Regulated: Physical description, chemical properties, potentially hazardous incompatibilities, and more





Exposure Limits and Health Effects

Exposure Limit

Limit Values

HE Codes

Health Factors and Target Organs

OSHA Permissible Exposure Limit (PEL) - General Industry
See 29 CFR 1910.1000 Table Z-1 (PNOR) and 29 CFR 1910.1000 Table Z-3 (Inert or Nuisance Dust)

5 mg/m3
(15 mppcf*)
TWA

HE10

Lung disease

OSHA PEL - Construction Industry
See 29 CFR 1926.55 Appendix A

Not established

 

 

OSHA PEL - Shipyard Employment
See 29 CFR 1915.1000 Table Z-Shipyards

Not established

 

 

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL)
See Appendix D

Not established

 

 

American Conference of Governmental Industrial Hygienists (ACGIH) Guideline

3 mg/m3
(respirable particles)

HE10

Lung disease, with compromised airway clearance

CAL/OSHA PEL

5 mg/m3
TWA

 

 

*mppcf = Millions of particles per cubic foot of air

National Toxicology Program (NTP) carcinogenic classification: Not listed

International Agency for Research on Cancer (IARC) carcinogenic classification: Not listed

U.S. Environmental Protection Agency (EPA) carcinogenic classification: Not listed

EPA Inhalation Reference Concentration (RfC): Not established

Agency for Toxic Substances and Disease Registry (ATSDR) Inhalation Minimal Risk Level (MRL): Not established

NIOSH Immediately Dangerous to Life or Health (IDLH) concentration: Not established

Notes on Other Potential Health Effects and Hazards

  1. Exposure to dusts may to decrease pulmonary function (Shieh et al. 2012).

Date Last Revised: 9/6/2012

Literature Basis

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Particulates (Insoluble) Not Otherwise Specified (PNOS). 2001.
  • Shieh, T.S., Chung, J.J., Wang, C.J., Tsai, P.J., Kuo, Y.C., Guo, H.R.: Pulmonary function, respiratory symptoms, and dust exposure among workers engaged in early manufacturing processes of tea: a cohort study. BMC Public Health. 12:121, Feb 13, 2012.
Monitoring Methods used by OSHA

Laboratory Sampling/Analytical Method:
  • sampling media: tared 37-mm diameter low-ash polyvinyl chloride filter preceded by 10 mm Nylon Cyclone
    maximum volume: 816 Liters
    minimum volume: 408 Liters
    maximum flow rate: 1.7 L/min
    current analytical method: Gravimetric
    method reference: OSHA Analytical Method (OSHA PV2121)
    method classification: Partially Validated
    note: OSHA personnel can obtain tared sampling media from SLTC.
    note: If the filter is not overloaded, samples can be collected up to an 8-hour period.

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