PURPLE AIR MAP CALIFORNIA HOW TO
PURPLE AIR MAP CALIFORNIA WINDOWS

That the ratios of PAS-measured PM 10 / PM 1 mass and 0.3 µm / 5 µm particle counts are significantly different for dust compared to smoke. For this site, weįind similar results as above the corrected PAS data are accurate in smokeīut are too low by a factor of 5–6 in dust. PM 2.5 due to both smoke and locally emitted dust. Site near Owens Lake, California (CA), which experiences high concentrations of We also examined several years of co-located regulatory and PAS data from a Underestimate the true PM 2.5 by a factor of 5–6. Significant correlations, the PAS data using either correction equation For dust events, while the PAS and regulatory data still show Using the new EPA equation, we find slopes of 0.95 and 0.88 for urban and smoke events, respectively, indicating a slight underestimate in PM 2.5 using this equation, especially for smoke events. ∼ 20 % underestimate in the corrected PAS data at theseĮxtremely high concentrations. For heavy smoke events, we find a small change in the slope at very high PM 2.5 concentrations ( > 600 µg m −3), suggesting a Using the Barkjohn et al. (2021) equation, we find mean slopes of 1.00 and 0.99 for urban and smoke aerosol events, respectively, for the corrected data versus the regulatory data. Both equations do a good job at correcting the data for smoke and typical pollution events but with some differences.

EPA for the AirNow Fire and Smoke Map (U.S. We then corrected the PAS data using either the correction equation from Barkjohn et al. (2021) or a new equation that is now being used by the U.S. Statistically significant correlations ( R values between 0.71–1.00) between the hourly PAS and regulatory data but with varying slopes. PM 2.5 monitor to evaluate the agreement. ForĮach event, we paired a PAS sampling outside air with a nearby regulatory Type as either typical urban, smoke, or long-range transported dust. PM 2.5 concentration of at least 47 µg m −3 and a minimum of 3 h over 40 µg m −3 and characterized the primary aerosol We identified 50 individual pollution events, each having a peak hourly Types of aerosols: typical urban wintertime aerosol, smoke from biomass The goal of our study is to evaluate the EPA correction equation for three different Matter with diameters less than 2.5 µm) across the US. Results in much better spatial coverage for PM 2.5 (particulate EPA recently developed a national correction equation and has integrated corrected PAS data onto its AirNow website. However, the raw PAS data have significant biases, so the sensors must be calibrated to generate accurate data. If the smoke is that irritating to you, the best option is to remain indoors or temporarily re-locate.PurpleAir sensors (PASs) are low-cost tools to measure fine particulate matter (PM) concentrations and are now widely used, especially in regions with few regulatory monitors. “Masks” (especially surgical masks or wet bandanas) will not protect your lungs.A swamp cooler will not provide this protection, and will pull in the smoky air from outside.In these cases, seek alternative shelters.

PURPLE AIR MAP CALIFORNIA WINDOWS

Note: if you don’t have an air conditioner, staying inside with the windows closed may be dangerous in extremely hot weather.

Keep the fresh air intake closed, and the filters clean, to prevent bringing additional smoke inside.

Run your air conditioner, if you have one.

Consider staying indoors to avoid breathing the smoke particles.

If you have a heart or lung disease, if you are an older adult, or if you have children, talk with your doctor about whether, and when, you should leave the area.

And it’s probably not a good time for your children to play outdoors. If it looks smoky outside it’s probably not a good time to go for a run.

You can fine more ways to protect yourself and your family with these Wildfire Smoke Health Tipsįor additional information on air quality you can also visit the EPA Fire and Smoke Map

PURPLE AIR MAP CALIFORNIA HOW TO

Please take a look at WILDFIRE SMOKE HEALTH TIPS for ideas on how to protect yourself from wildfire smoke. In side by side comparisons to our High tech monitors they read high, sometimes they are reporting significantly higher than actual conditions. These sensors are an indicator of air quality status but they are not as accurate as the emergency response monitors we use during a local fire. You can also view the low tech sensor network of purple air sensors around the county at PurpleAir (website). You can view current air quality around Mariposa County by visiting the AirNow website and scrolling in to your part of Mariposa county on the map. Mariposa County Smoke Related Air Quality Index (AQI)

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