airshed
/ˈɛrˌʃɛd/
noun
- A geographic area that shares the same air mass, often used in discussions of air pollution and quality.
- Environmentalists studied the airshed to understand how smoke from wildfires travels.
- Improving air quality requires cooperation among all communities within the same airshed.
- The city's airshed extends across several counties, so pollution from one area affects the others.