The Hydro-Sulphur had killed all living things in waters first, then it would go into air on the earth and kill all living things on lands.

For a long time, the hydro-generator has usually used air as medium to cool its stator, rotor winding and iron core.

This hydro-fracing site has a holding pond from which compounds are allowed to evaporate into the air, and what looks like an old chemical spill.