---
title: HKMetadataKeyWaterSalinity
framework: healthkit
role: symbol
role_heading: Global Variable
path: healthkit/hkmetadatakeywatersalinity
---

# HKMetadataKeyWaterSalinity

## Declaration

```swift
let HKMetadataKeyWaterSalinity: String
```

## Topics

### Valid water salinity

- [HKWaterSalinity](healthkit/hkwatersalinity.md)

## See Also

### Swimming

- [HKMetadataKeySwimmingLocationType](healthkit/hkmetadatakeyswimminglocationtype.md)
- [HKMetadataKeySwimmingStrokeStyle](healthkit/hkmetadatakeyswimmingstrokestyle.md)
- [HKMetadataKeyLapLength](healthkit/hkmetadatakeylaplength.md)
- [HKMetadataKeySWOLFScore](healthkit/hkmetadatakeyswolfscore.md)