QUICK FACTS Location: Lakeview and Klamath Falls areas - End date: Monday, July 5 - Smoke source: Lava Fire near Mt. Shasta and the Tennant Fire near Highway 97 - The Oregon Department of Environmental Quality issued an air quality advisory Wednesday night for the Lakeview and Klamath Falls areas due to smoke from fires in Northern California. ** Información en español ** DEQ expects air quality to fluctuate in the Lakeview and Klamath Falls areas for at least the next several days, potentially longer depending on fire activity. DEQ and partner agencies will continue to monitor smoke in area. Smoke levels can change rapidly depending on weather. Check current conditions on the Oregon Smoke Information Blog , DEQ’s Air Quality Index , or by downloading the free OregonAIR app on your smartphone. Smoke can irritate the eyes and lungs and worsen some medical conditions. People most at risk include infants and young children, people with ...