black

chemical

contaminated

contamination

corrosion

crude

damage

danger

dangerous

dead

desert

dirty

disaster

disasters

disposal

dump

ecology

environment

environmental

factory

fluid

fuel

garbage

ground

heavy

illicit

industrial

industry

liquid

natural

nature

oil

petroleum

plant

poison

polluted

pollution

sewage

sludge

soil

sources

spill

substance

tar

thailand

toxic

treatment

waste

water