24-hour history of sulfur dioxide (SO2) and particulate matter (PM2.5) conditions.
Air quality and weather data are typically displayed on this web page within 15 minutes (1 hour for Jaggar Museum and Kīlauea Visitor Center Parking Lot PM2.5) of their collection. As a result, data quality is not guaranteed for scientific and regulatory purposes and data may be revised at a later time.
Sep 2, 2015 | 2:00 pm HST
« Scroll left or right on the graphs below to see more history »
Air Quality Advisory Scale Key:
Unhealthy for Sensitive Groups
Explore the links below to learn more about air quality in Hawai‘i and its health effects.
Hawai‘i Volcanoes National Park »
NPS Halema‘uma‘u Crater View Webcam »
Air Quality in Parks, Hawai‘i Volcanoes NP »
Island of Hawai‘i: Short Term SO2 Advisories »
USGS: Volcanic Air Pollution »
USGS: Status of Volcanic Activity, Kīlauea »