A partnership between the Massachusetts Institute of Technology and The Kohala Center, the Hawai‘i Island Vog Network provides near-real-time measurements of the two major components of vog: sulfur dioxide and particulate matter. Data are collected using a new generation of relatively low-cost, experimental air quality monitors capable of making high-density measurements. This network differs from regulatory air quality networks that are composed of a relatively few number of high-performance, but more expensive air quality stations. For more information on the project, read more about it here.

NOTE: These measurements are intended to give only a general picture of local air quality. For emergency response/evacuation information, please see the Unified Agencies' Toxic Gas Air Monitoring Viewer Website.

If you believe a sensor is malfunctoning and/or generating inaccurate data, please report it to us so we can investigate and resolve any issues as soon as possible.