Residents of Nevada County have seen the air quality index move back into the “good” range on Thursday night, thanks to a temporary lull in smoke from the nearby Floriston Fire. The Nevada County Health District reminded the public, however, that air conditions can shift quickly as fire activity and wind patterns evolve.

What officials are saying

Ben McNullen, an Air Quality Specialist with Northern Nevada Public Health, explained that current models show a possibility of additional smoke this afternoon. “That depends heavily on fire activity and how well they’re able to fight the fire today,” McNullen said. “Depending on that, we may see smoke in the afternoon today. Overnight, you may see pockets of unhealthy air again.”

McNullen also warned that even after visible smoke clears, tiny particles remain suspended in the atmosphere and can enter the bloodstream when inhaled. “PM 2.5, the smaller particle, is smaller than the diameter of a human hair, so it’s very small, and PM 10 is the larger of the two particles, which is about the size of the human hair,” he noted.

Who should take extra precautions

The Health District urged everyone to limit outdoor exposure when possible, especially vulnerable groups. “Children, older adults, people with heart and lung conditions, like asthma or other heart conditions, or outside workers should consider reducing their time outside, take more frequent breaks, and drink lots of water,” McNullen advised.

Why the air quality keeps changing

Western Nevada has been grappling with a series of back‑to‑back wildfires this season. In addition to the Floriston Fire, the Dome Fire burning in the Yosemite area just east of Mono Lake is sending another plume of smoke toward the region. “We’re kind of in the middle of these two fires, these two plumes, so as conditions change, as weather changes, be prepared to see more or less smoke,” McNullen said.

Because smoke can travel long distances, residents in neighboring counties may also feel the impact, especially when winds shift from the west or northwest. The Health District continues to monitor particulate levels and will update the public through its website and local news outlets.

Practical steps for families

• Check the daily air quality index on the Nevada County Health District website or trusted weather apps.
• Keep windows and doors closed when the index moves into the “unhealthy” range.
• Use air purifiers or run HVAC systems on the recirculate setting to reduce indoor particle buildup.
• Plan outdoor activities for times when the index is “good” or “moderate,” and keep children’s outdoor playtime short during higher pollution periods.
• Stay hydrated and take regular breaks if you must work outside.

By staying informed and taking simple precautions, families can protect their health while the fire crews continue their efforts to contain the blaze.

Looking ahead

The Health District emphasized that air quality will remain a moving target until the fires are fully contained. Residents are encouraged to follow official updates and heed any future advisories, especially if fire activity intensifies or wind directions shift.

Original reporting: 2news.com — read the source article.