Southern California Smog Forecast

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Smog

DIAMOND BAR – The South Coast Air Quality Management District predicted that air quality will be in the good to moderate range in the South Coast Air Basin today.

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.

Area AQI Forecast for Today

GOOD in the following area(s):

Antelope Valley AQI: 49 NO2

Banning Pass Area AQI: 48 NO2

Big Bear Lake AQI: 44 NO2

Central Mojave Desert AQI: 43 NO2

Inland Orange County AQI: 50 NO2

Northern Mojave Desert AQI: 45 NO2

San Bernardino Mountains AQI: 44 NO2

San Gabriel Mountains AQI: 47 NO2

Victor Valley AQI: 46 PM2.5

MODERATE in the following area(s):

Coachella Valley/Low Desert AQI: 53 PM10

Coastal Area AQI: 74 PM2.5

Hemet/Elsinore Area AQI: 52 NO2

Metropolitan Area AQI: 63 PM2.5

Riverside Valley AQI: 61 PM10

San Bernardino Valley AQI: 56 PM10

San Fernando/Santa Clarita Valleys AQI: 55 PM2.5

San Gabriel Valley AQI: 57 PM2.5

Temecula/Anza Area AQI: 54 Ozone

The AQI measures the amount of pollutants in the air, whether ozone, carbon monoxide, nitrogen dioxide, PM2.5 (particulate matter 2.5 micrometers or less in diameter) or PM10 (particulate matter 10 micrometers or less in diameter).

Conditions are considered “good” when AQI levels are between zero and 50. Air quality is considered satisfactory, and air pollution poses little or no risk.

When AQI levels are 51 to 100, air quality is deemed “moderate,” which means that air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Air quality is designated “unhealthy for sensitive groups” when AQI levels are from 101 to 150. At this level, active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

When AQI levels are between 151 and 200, air quality is deemed “unhealthy.” At this level, active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion. Everyone else, especially children, should limit prolonged outdoor exertion.

“Very unhealthy” air quality is declared when the AQI registers between 201 and 300. Active children and adults, and people with respiratory disease, should avoid all outdoor exertion when the AQI is at this level. Everyone else, especially children, should limit outdoor exertion.

Copyright 2021 City News Service, Inc.

CNS-02-23-2021 01:16