---
title: "readAttributeContaminationState(with:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrclustersmokecoalarm/readattributecontaminationstate(with:)"
---

# readAttributeContaminationState(with:)

## Declaration

```swift
func readAttributeContaminationState(with params: MTRReadParams?) -> [String : Any]?
```