wastewater

sawage

pipe

dumps

dirty

contaminated

water

river

pollution

environment

contamination

concept

chemical

contaminate

damage

disaster

drain

drainage

drainages

dump

ecology

environmental

factory

fatal

flow

flowing

impurity

industrial

influence

leak

mud

pollutes

pipeline

poison

polluted

problem

rubbish

runoff

sanitary

sanitation

sewage

sewer

sludge

smelly

stench

stream

system

toxic

tube

waste

white