LicheN
Assess nitrogen pollution
Only for iPhone
Free · Designed for iPhone
iPhone
Discover your local nitrogen air quality using lichens. Easy surveys, ID guides, and instant pollution results—learn what your air says about your environment.
Curious about nitrogen pollution in your area?
This app helps you assess local nitrogen air quality using lichens—good indicators of nitrogen pollution levels in the atmosphere. Knowing nitrogen pollution levels can tell us a lot about the health of your local environment. It provides:
• A simple lichen ID photo guide for nitrogen-sensitive and tolerant species
• Easy tools for recording lichens on trees and branches
• A step-by-step field guide for conducting surveys
• An automatic nitrogen air quality index score (NAQI)
• Clear pollution zone results: Clean, At Risk, Nitrogen Polluted, or Very Polluted
Use nature to understand your air quality and environment!
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
The developer, Centre for Ecology and Hydrology, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Centre for Ecology and Hydrology
- Size
- 24.1 MB
- Category
- Education
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © UK Centre for Ecology & Hydrology 2025