BIT OF AIR POLLUTION is a term used to describe small particles of air pollution that are released into the atmosphere. These particles can come from a variety of sources, such as burning fossil fuels, industrial processes, and agricultural activities. The two crossword solutions for this term are ASH (3 letters) and CINDER (6 letters). ASH is a by-product of burning organic material, such as wood, and is composed of fine particles of minerals and other materials. CINDER is a type of ASH that is created when coal or other combustible materials are burned. Both ASH and CINDER are considered to be forms of air pollution, as they can contain harmful substances that can be inhaled and cause health problems.