chlorine

By the end of the third day of the water ban, using a $4 million mix of aluminum and chlorine, Lake Erie was shocked like a pool back to safe levels.

Firefighters were there to protect the lodge, but when a water treatment plant burned down and released toxic chlorine gas into the air, they had to evacuate.

Firefighters in several areas were forced to evacuate due to a leak of chlorine at a nearby water treatment facility, the NPS added.

It should throw a shadow of chemical memory across our faces like the smell of chlorine.

Depending on the type of rocket fuel used, launches produce nitrogen oxides, chlorine, black carbon particles, water vapor, carbon monoxide and carbon dioxide — and no propellant avoids creating of some kind of emissions.