Diamond Bar Air Quality Report: Moderate to Unhealthful Air Quality Tomorrow

Diamond Bar, CA--The South Coast Air Quality Management District predicted that air quality will range from moderate to unhealthful in the South Coast Air Basin today and tomorrow.

The Air Quality Index measures the amount of pollutants in the air--whether ozone, carbon monoxide, nitrogen dioxide or particulate matter. Ground level ozone is among the nation's most common pollutants.

Air quality will be unhealthful in the San Bernardino Mountains--unusually sensitive people should consider limiting prolonged outdoor exertion.

Air quality will be unhealthful for sensitive groups in San Gabriel, and moderate in the coastal area and Inland Orange County areas. Active children, adults, and people with respiratory disease such as asthma should limit prolonged outdoor exertion.

The forecast released by the AQMD lists the highest expected Air Quality Index level -- for ozone unless otherwise noted -- in each area of the South Coast Basin for tomorrow.