black

chemical

chemicals

contaminated

contamination

crust

damage

danger

dangerous

detail

dirt

dirty

disaster

disposal

dump

earth

ecological

ecology

effect

environment

environmental

fluid

fuel

heavy

hydrocarbons

industrial

industry

land

landscape

liquid

material

matter

mine

nature

oil

poison

poisonous

polluted

pollution

refined

scene

sewage

sludge

soil

sources

survived

synthetic

toxic

waste

water