Woodfibre’s published records identify three Met One BAM 1020 particle monitors: PM₂.₅ serial U11269, PM₁₀ W22222, and total suspended particles A12386. The same serials appear in August and November audit forms. These identifiers matter when obtaining the hourly archive: each measurement needs to be matched to its instrument, settings, maintenance events and validity flags. Matching serials at two audits does not establish unchanged equipment throughout the year. August audits, PDF40–43, November audits, PDF48–52.
The BAM forms record a 42-minute measurement cycle, inlet heaters On/ON, and filter temperature, humidity and flow checks. These are dated configuration snapshots; they do not establish daily valid-hour counts. November’s instrument summary also identifies an Aeroqual AQS1 for PM₁, installed November 4 and exchanged November 17 following a data-transmission problem. No PM₁-specific serial or calibration form was identified in the appendix pages reviewed here. November instrument summary, PDF12.
The NO₂ records document a change from a 42i, serial 707120758, to a 42iQ, serial 12509938921. Both calibration forms specify chemiluminescence and a 0–500 ppb range. Their dates need careful handling: the report narrative says the older unit was calibrated November 18, replaced November 19, and the replacement calibrated November 20 after overnight stabilization. It excludes November 19 at 13:00 through November 20 at 13:00. The appendix instead labels forms and logs “Removal” on November 18 and “Installation” on November 20. These records establish a transition, but the native hourly QA log is needed to resolve exact changeover timing. Narrative, PDF12, removal form, PDF37, installation form, PDF42.
Both NO₂ gas-phase titration records report 100% converter efficiency, and the acceptance forms mark calibration PASSED. This does not identify the converter’s material, temperature or interference selectivity. Nor does successful calibration establish final QA for every ambient hour; the monthly report still labels its data Level 0 validation. No calibration coefficients have been applied to the published daily measurements. Validation statement, PDF6, converter and acceptance records, PDF43–44.
Maintenance records mark clock, inlet-cleaning and settings-file checks as completed. However, they do not state the timezone, daylight-saving behaviour, daily averaging boundary, inlet height or residence time. One November PM₂.₅ form shows analyzer time 12:31 and PC time 12:30; that snapshot is not grounds for shifting the annual record. Maintenance, PDF51, clock entries, PDF52.
Source inconsistencies are retained. For example, an August PM₁₀ audit prints temperature error 0.00/PASS alongside reference/analyzer readings of 25.7/21.6°C. Reported success is therefore recorded as the provider’s finding, without independent certification or correction. August audit, PDF42.
The next useful records are the hourly archive and quality flags, serial-number deployment log, and dated logger, inlet and converter configuration. Download the structured appendix evidence and page references. It contains no personal contact details or form images.