# Regulations.gov document: National Institute for Occupational Safety and Health (NIOSH). Radon progeny in underground mines. Publication
No. 88-101. (1987). 206 pp. [NIOSH, 1987] [PHASE-III-RADS-III-D3-45] — retained record

> Retained regulations record from regulations-gov.

Canonical: https://highsignal.app/data/records/9eba2ec3bc38509e

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No. 88-101. (1987). 206 pp. [NIOSH, 1987] [PHASE-III-RADS-III-D3-45]

source: [regulations](https://highsignal.app/data/regulations) (regulations-gov)  published 2026-09-28 04:00 ingested 2026-09-29 02:45

[original source ↗](https://www.regulations.gov/document/EPA-HQ-OW-1986-0161-0882)

## retained text



```
Query: data center
Agency: EPA
Type: Supporting & Related Material
Docket: EPA-HQ-OW-1986-0161
```



document fetched 2026-09-29 02:45 · canonical https://regulations.gov/document/EPA-HQ-OW-1986-0161-0882