Smoke from the Six Rivers Lightning Complex Fire in Humboldt and Trinity counties is expected to impact the Bay Area on Wednesday, causing hazy skies. However, pollution levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect on Wednesday.
Air Quality Advisories are posted when air quality might affect susceptible populations and pollutants are not expected to exceed federal health-based standards.
Wildfire smoke from adjacent regions (such as southern California or Oregon) drifts into parts of the Bay Area, affecting air quality.
When air quality conditions are expected to cause pollution levels exceeding federal air quality standards, a Spare the Air Alert or Winter Spare the Air Alert is called.
Message frequency will vary. Subscribers are expected to receive an estimated 1-15 texts per month, potentially more, depending on how weather patterns and natural occurrences influence the number of poor air quality days in the Bay Area. Message and data rates may apply.
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