environmental
area
barrier
confined space
conservation
construction barrier
containment
contamination
control
crime
dirty
ecology
environment
environmental conservation
float
floating
floating on water
floats
garbage
hydrocarbon
hydrocarbons
industrial
industrial waste
industry
oil
plastic
polluted
pollution
problem
problems
sea
surface
surface level
toxic waste
trash
turbidity
waste
water
water pollution
water surface