Acidic water usually pH 2.5 to 4.5, which poisons the ecosystem and adversely affects plants, fishes, and mammals. It is caused by industrial pollutants, mainly sulfur oxides and nitrogen oxides, emitted into the atmosphere and returning to earth in the form of acidic rain water.

Water particles that fall from the ATMOSPHERE.

Contamination of the air, bodies of water, or land with substances that are harmful to human health and the environment.

Family of spider MITES, in the superfamily Tetranychoidea, suborder Trombidiformes.