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Definitions from the Web

Nonattainment

A term often used in environmental science and policy to describe an area that does not meet or has not yet achieved the required air quality standards set by regulatory agencies.

Examples:

• The city of XYZ is currently designated as a nonattainment area due to high levels of particulate matter in the air.
• Nonattainment regions often face stricter regulations and limitations on industrial emissions.

Possible related products on Amazon:

• Air Purifiers
• Anti-pollution Masks
• Carbon Monoxide Detectors