Decibel Levels of Common Sounds (CDC/NIOSH/NIDCD/ASHA reference dataset)

A compiled reference table of the decibel (dB SPL) levels of 30+ everyday sounds, each with a hearing-damage risk category and the published source it is drawn from. Every row is sourced to public figures from the CDC, NIOSH, NIDCD or ASHA, and no values are measured or invented. Columns: sound, db_low, db_high, environment, risk, risk_note, source, source_url. Canonical interactive version: https://decibelshield.app/decibel-levels-chart/ . CSV: https://decibelshield.app/decibel-levels.csv . JSON: https://decibelshield.app/decibel-levels.json . Maintained by APPSTACK LLC (Decibel Shield), https://decibelshield.app. Licensed CC BY 4.0; reuse with attribution.