| envir. |
smoking The inhalation and exhalation of carcinogenic fumes from burning plant material, usually tobacco (azione); fume Solids in the air that have been generated by the condensation of vapors, chemical reactions or sublimation (a direct change from solid to gas). Often metallic oxides or metals, these particles are less than 1 micrometer in diameter and may be toxic (particolato); smoke An aerosol, consisting of visible particles and gases, produced by the incomplete burning of carbon-based materials, such as wood and fossil fuels (in generale) |
