environmental
bay
bottle
cardiff
city
coastline
contaminate
contaminated
contamination
damage
danger
debris
dirty
dump
dumping
ecological
ecology
ecosystem
environment
europewaterway
filthy
floating
garbage
harbour
hazard
hygiene
impact
junk
landscape
litter
nonbiodegradable
objects
plastic
pollute
polluted
pollution
problem
refuse
rubbish
sea
seascape
shore
surface
toxic
trash
unhygienic
urban
wales
waste
water