Kīlauea's Volcanic Gases and Their Environmental Impacts

Sulfur dioxide gas emissions from the crater of
Pu‘u ‘Ō‘ō on Kīlauea's east rift zone (above) and the vent within
Halema‘uma‘u Crater at Kīlauea's summit create volcanic pollution that
affects the air quality of downwind communities. Here, an HVO gas
geochemist measures Pu‘u ‘Ō‘ō gas emissions using an instrument that
detects gas compositions on the basis of absorbed infrared light.

Photo credit: USGS photo (See attached file: USGS_Gas_Geochemist556.jpg)
(See attached file: Kīlauea's Volcanic Gases and Their Impact .doc)