Thursday, August 13, 2015 - Shasta-Trinity/Six River Complexes - Hayfork Air Quality

Prepared by Dan Chan

The above PM2.5 data were collected by a PM2.5 monitor at Hayfork located behind the USFS Ranger station at Hayfork.
GMT time is 7 hours ahead of PDT.
As we can see, air quality was the poorest on Aug 7, when there were 24-hours of consecutive measurement over 250 ug/m-3.
Since then, the air quality has been improving daily, despite of occasional measurement of over 250ug/m-3 due to good day time mixing that enhances smoke dispersion.   However, today (Aug 13) is forecast to be last day of good smoke dispersion and air quality at Hayfork is likely to deteriorate tomorrow and a few days after.