(comparative more colloquial, superlative most colloquial) ( 1 linguistics) Denoting a manner of speaking or writing that is characteristic of familiar conversation; informal.  Of or pertaining to a conversation; conversational or chatty.
Cotton dust is often present in the air during cotton handling and processing. Cotton dust may contain many substances including ground-up plant matter, fiber, bacteria, fungi, soil, pesticides, non-cotton matter, and other contaminants that may have accumulated during growing, harvesting, and subsequent processing or storage periods.
Cotton is considered the world's dirtiest crop due to its heavy use of pesticides. Aldicarb, cotton's second best-selling insecticide and most acutely poisonous to humans and wildlife, is still used in 25 countries, including the U.S., where 16 states reported it in their groundwater.