The Leipzig measurements of 2022/23 showed that optically thin layers of smoke invisible to conventional lidar systems occur more frequently than previously thought at high altitudes.

Fire smoke exposure in healthy adults leads to cellular immune changes, including increased memory CD8 + T cells, elevated inflammatory biomarkers, and altered expression of 133 genes linked to ...

Smoke visible from Benicia refinery fire, prompts shelter-in-place order By Madilynne Medina , News Reporter May 5, 2025 A fire at the Valero refinery in Benicia, Calif., was reported on May 5, 2025.

Fires send a mixture of smoke and tiny particles called PM 2.5 — particulate matter — into the air. When you smell smoke, you're actually smelling just the gases, not the particles, said ...