Air Quality in Napa County
Air Quality Impacts
In general, if you smell smoke, protect your health by following the measures listed below. Children, the elderly and those with respiratory conditions such as asthma, lung disease and heart disease are most at risk for harmful impacts and are considered sensitive groups. The most important protective action is to remain indoors. Please see "Air Quality and Actions to Protect Your Health".
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The Bay Area Air Quality Management District advises that Purple Air Monitors are low-cost air monitoring sensors that can produce readings that are 2-3 times higher than regulatory monitors that undergo routine EPA calibrations and accuracy/precision checks. These monitors have been shown to be misrepresentative of particulate matter in situations like the wildfire smoke and very high readings should be interpreted with caution. Opens a New Window. Opens a New Window. Opens a New Window.
Bay Area Quality Management District (BAAQMD)
- Learn out more about air quality by visiting the BAAQMD's About Air Quality page, as well as so Wildfire Smoke Safety Tips.
- Also see BAAQMD's current Spare the Air Status and Five Day Forecast.
How do we measure air quality?
One of the most common ways to measure air quality is by measuring particulate matter, or PM. PM refers to fine particles in the air that are harmful to health.