environmentalAudioExposureEvent: HealthKit category type
HKCategoryTypeIdentifierEnvironmentalAudioExposureEvent · read from Apple’s documentation on 2026-10-02
HKCategoryTypeIdentifier.environmentalAudioExposureEvent (Objective-C HKCategoryTypeIdentifierEnvironmentalAudioExposureEvent) is a HealthKit category type in Apple's "Hearing" group. Apple's abstract: “A category sample type that records exposure to potentially damaging sounds from the environment.” Apple's page names HKCategoryValueEnvironmentalAudioExposureEvent as the enum its sample values come from. Apple states that apps cannot save it: “Environmental audio exposure event samples are read-only.” It is available from iOS 14.0 and watchOS 7.0.
What Apple says environmentalAudioExposureEvent is
A category sample type that records exposure to potentially damaging sounds from the environment.
Apple’s abstract, quoted from its environmentalAudioExposureEvent reference page, read 2026-10-02. Apple’s discussion of the type runs 120 words.
- Swift
HKCategoryTypeIdentifier.environmentalAudioExposureEvent- Objective-C
HKCategoryTypeIdentifierEnvironmentalAudioExposureEvent- Family
HKCategoryTypeIdentifier- Apple's topic group
- Hearing
- Group page
- Environment, hearing and diving
- Apple's reference
- environmentalAudioExposureEvent on developer.apple.com
Availability
The versions Apple’s documentation data gives for environmentalAudioExposureEvent, platform by platform, as read on 2026-10-02.
| Platform | Introduced | Deprecated |
|---|---|---|
| iOS | 14.0 | — |
| iPadOS | 14.0 | — |
| Mac Catalyst | 14.0 | — |
| macOS | 13.0 | — |
| visionOS | 1.0 | — |
| watchOS | 7.0 | — |
The rest of that release: HealthKit Types Introduced in iOS 14.
What a sample holds
Value enum
HKCategoryValueEnvironmentalAudioExposureEvent — the enum Apple’s page for environmentalAudioExposureEvent names. Every category type’s enum is on the HKCategoryValue reference.
Aggregation style and unit family apply only to quantity types. For a category type the dataset records neither, because the concept does not apply — not because Apple declined to say.
Can apps write environmentalAudioExposureEvent?
No. Apple’s documentation states that these samples are read-only:
Environmental audio exposure event samples are read-only.
On Android Health Connect
No verified Health Connect counterpart. The cross-platform matrix pairs only metrics checked against both Apple’s and Google’s documentation, and environmentalAudioExposureEvent is not among them. A similarly named Health Connect record may exist, but a name match is not a verified mapping.
Questions
- Which enum decodes environmentalAudioExposureEvent sample values?
- HKCategoryValueEnvironmentalAudioExposureEvent. Apple's page for environmentalAudioExposureEvent names that enum as the one its sample values come from.
- Can my app write environmentalAudioExposureEvent samples to HealthKit?
- No. Apple's documentation for environmentalAudioExposureEvent states: "Environmental audio exposure event samples are read-only." (read 2026-10-02).
- Which iOS version added environmentalAudioExposureEvent?
- iOS 14.0. Apple's availability data for environmentalAudioExposureEvent lists iOS 14.0, iPadOS 14.0, Mac Catalyst 14.0, macOS 13.0, visionOS 1.0 and watchOS 7.0.
Sources checked
- Apple — HKCategoryTypeIdentifier.environmentalAudioExposureEvent · read 2026-10-02
- Apple — HKCategoryTypeIdentifier · read 2026-10-02
Apple’s abstract and sentences are quoted for identification; the page layout, the capsule and the cross-platform pairing are AIFitnessAPI’s. Generated from Apple’s documentation by scripts/fetch-healthkit-identifiers.mjs, not typed by hand — the same data as the full identifier table.
← All HealthKit type identifiers · Environment, hearing and diving