🔗 Linked Evidence
The_Pang_Formula — p.12
📄 The Pang Formula | p.12
📄 The Pang Formula | p.12
📝 Extracted Text (OCR)
SOURCES AND PRIMARY EVIDENCE LOG Primary Claim Documents WorkSafeBC Medical Advisor Clinical Opinion, Flora Pang, M.Sc., RAUD, Aud (C), March 20, 2026. WorkSafeBC Claim #42647461 (Claim File pp. 305-306). WorkSafeBC Internal Advisor Draft Processing Notes, February—March 2026. Extracted via FIPPA Request WCB-2026-0484, p. 24. Contains explicit references to 1991 and 1992 benchmark dates subsequently omitted from final report. BC Ferry Corporation Data Centre Noise Log, Quest M-27 Noise Logging Dosimeter, March 22, 1991. LAVG 79.3 dBA. Extracted via FIPPA Request WCB-2026-0484, p. 33. Vancouver General Hospital, Memo from Anne M. Jopling, CIH, ROH, Occupational Hygiene Officer, Field Services Department. October 30, 1992. Subject: Claims Investigation — Digital Decwriter LA 120 Printer Noise Survey. Extracted via FIPPA Request WCB-2026-0484, p. 34. Mark Holand, Acoustic Trauma Brief and Exposure Telemetry Submission to WorkSafeBC, February 6, 2026. Documenting 328 Hz resonance, spatial glass reflection, calibration methodology, and TTTS onset. Hearing Test History Report, WorkSafeBC Pre-Incident Industrial Audiograms, October 2023 to September 2025. Confirmed stable baseline prior to January 12, 2026 exposure. Amplifon Surrey Audiogram, January 30, 2026. 10 dB threshold shift at 8 kHz, left ear, compared to September 2025 baseline. Wavefront Centre for Communication Accessibility Comprehensive Hearing Assessment, March 25, 2026. Confirmed hyperacusis (left ear), absent DPOAEs at 3—4 kHz and 6-8 kHz (left), Tinnitus Handicap Inventory score 54/100, Khalfa Hyperacusis Questionnaire score 32/40. WCAT Precedent Decisions British Columbia Workers' Compensation Appeal Tribunal (WCAT), Decision A1801216, August 31, 2018 (Vice Chair Lyall Zucko). Heavy fabrication and pulp mill noise-induced hearing loss claim. Flora Pang clinical opinion overturned; Dr. Dumper's otolaryngology opinion accepted. Claim allowed. British Columbia Workers' Compensation Appeal Tribunal (WCAT), Decision A1802828, March 19, 2019 (Vice Chair Scott Ferguson). Acute tympanic membrane perforation from workplace earplug moulding incident. Analysis of Flora Pang's December 22, 2017 clinical opinion attributing ongoing loss to pre-existing childhood middle ear surgery. British Columbia Workers' Compensation Appeal Tribunal (WCAT), Decision A2001793, March 10, 2021 (Vice Chair Elaine Murray). Fire captain occupational noise-induced hearing loss. WCAT found worker exposed to hazardous noise beyond 2009, contradicting Pang opinion. Noise Exposure Record revised. Claim denied on audiometric configuration grounds, but Pang's core assumption of non-hazardous exposure rejected. British Columbia Workers' Compensation Appeal Tribunal (WCAT), Decision A2100322, September 17, 2021 (Vice Chair Lyall Zucko). Retired firefighter, 3772