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60
terms
objection
observation satellite
occupational disease
occupational health
occupational health care
occupational safety regulation
ocean outfall
oceanic climate
odour nuisance
off-site
offence against the environment
office
official hearing
offset policy (emissions trading)
oil boom
oil disaster
oil pipeline
oil refinery
oil residue recuperation
oil slick
oil-based energy
onchocerciasis
open sea fishing
operating data
order
ordinance
organic carbon
organic farming
organic nitrogen
organic substance
organisation (law)
organisation of teaching
organisation of the legal system
organochlorine compound
organohalogen compound
organometallic compound
organonitrogen compound
organooxygen compound
organophosphorous compound
organosilicon compound
organosulphur compound
organotin compound
oven
overcrowding
overfertilisation
overfishing
overflow (outlet)
overhead power line
overpopulation
ownership
oxidation
oxidation-reduction
oxide
oxygen
oxygen content
oxygen deficiency
oxygenation
ozone
ozone layer depletion
ozonisation