Description
Readings from 24 roadside air quality monitors, kept by a council department that no longer exists.
Provenance
Bought as part of a box of disks at an estate sale and donated anonymously. The image matches a checksum published by the original distributor.
Preservation
- Fixity (SHA-256)
9edea6622d519f9ff44a1a60a41e06673dd2e970000413adbecd028c4f556e89- Last verified
- Sep 29, 2026, by Vigil
- Migrated to
- CSV with a data dictionary, with the original files kept
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in the Lazarus reading room in Vancouver and in partner reading rooms.
Reading-room copies are migrated to CSV with a data dictionary, with the original files kept. The recovered files are kept exactly as they were found.
Cite as: Copperford Environmental Health Department, Air quality monitoring, Copperford, 1994–2002 (1994–2002). Lazarus Archive, LZ-18865.