New fires send smoke rolling into foothills |

New fires send smoke rolling into foothills

Air quality is expected to suffer again today as smoke from fires burning in Trinity County wafts down the valley, temperatures heat up and ozone levels soar, said local air experts.

An air quality advisory was issued by the Northern Sierra Air Quality Management District for Thursday and Friday.

“We are starting to get some moderate smoke incursions from the new fires up in Trinity County. That smoke combined with our high summer temperatures is causing us to experience elevated levels of ozone,” the advisory said.

In eastern Nevada County, smoke levels are likely to vary from “moderate” to “unhealthy for sensitive groups” for a few days.

The National Weather Service released a hazardous weather outlook for interior Northern California communities including the foothills. Widespread haze is expected to continue through Saturday for the Sacramento area. Temperatures are expected to reach into the high 90s through Monday.

The highest levels of ozone are most likely to occur during the late afternoon and evening hours. Health risks from exposure to smoke and ozone are high, because both conditions irritate the lungs.

The air district recommended limiting outdoor sporting activities. High levels of particulate are generally in the air when you can see and smell smoke.

Exposure to ground level ozone can result in chest pain, coughing, nausea, shortness of breath, throat irritation, headaches, congestion and chest discomfort.

The elderly, children, asthmatics, pregnant women and athletes are considered sensitive groups to health risks from ozone.

Staying indoors with the windows and doors closed and air conditioner running are recommended for sensitive individuals. Disposable particulate respirators found at hardware stores can also help.

To view current conditions visit

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