Description
Readings from 19 roadside air quality monitors, kept by a council department that no longer exists.
Provenance
Brought to a Lazarus rescue day by a former owner. The tape had stretched near its start; the first blocks were repaired by hand from the sampled signal. Everything was recovered, with a few damaged files repaired from a second copy.
Preservation
- Fixity (SHA-256)
922a320abc095a8aeafd690427723a48e491c7f73f17524a2cca97c42773b6d6- Last verified
- Oct 1, 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. Copies may be taken away under the work’s license.
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: Silverholt Environmental Health Department, Air quality monitoring, Silverholt, 1985–1988 (1985–1988). Lazarus Archive, LZ-41121.