(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.
Soil contamination or soil pollution is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment.It is typically caused by industrial activity, agricultural chemicals, or improper disposal of waste.The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons (such as naphthalene and benzo(a)pyrene) , solvents, pesticides, lead, and other heavy metals.Contamination is correlated with the degree of industrialization and intensity of chemical usage.aturally occurring fate of pollutants in soils. Soil contamination or soil pollution is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals, or improper disposal of waste.