Hawai`i Volcanoes National Park
Current Sulfur Dioxide (SO2) and Particulate (PM2.5) Conditions
The map above indicates the approximate direction
and extent of the volcanic gas plumes (yellow wedges) from Halema'uma'u and
Pu'u O'o. Within the plumes are unhealthy concentrations of sulfur dioxide
(SO2) and small particles (PM2.5). Color-coded health advisories (color
circles or label boxes) are issued when the plumes affect surface areas.
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Sulfur dioxide gas plumes cross roads near Halema`uma`u and low on Chain of Craters Road. Sensitive individuals should limit exposure in these areas. |
Today's Advisory History
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| 12:00am |
6:00am |
12:00pm |
6:00pm |
11:45pm |
Air Quality Conditions
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Sulfur Dioxide Advisory Level
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Unhealthy for Sensitive Groups
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May 18, 2013 • 7:15 AM HST
| Good |
Moderate |
Unhealthy for Sensitive Groups |
Unhealthy |
Very Unhealthy |
Hazardous |
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Particulate Advisory Level
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May 18, 2013 • 7:15 AM HST
Weather
Wind Direction
from the North Northeast
Wind Speed
5 mph ( 2.1 m/s )
May 18, 2013 • 7:15 AM HST
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This web page is jointly supported by the National Park Service and the U.S. Geological Survey. |
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