| English | Italian |
| old burden | guasto ambientale pregresso |
| old burden | onere del passato |
| old burden | retaggio del passato |
| old hazardous site Abandoned or disused dumps and refuse tips, stockpiles and landfill sites, disused petrol service stations, closed-down coking plants and former industrial and commercial premises, etc., from which considerable risks not only to the soil and to the groundwater, but also to humans and nature, can arise | discarica dismessa |
| old hazardous site | discarica dismessa |
| old landfill site Landfill that has been filled and covered with topsoil and seeded. The most common end use for landfills is open spaces with no active recreation taking place over the completed landfill. The obvious reason for this use is that the completed surface is steeply sloped to provide rapid runoff. Also, no irrigation of the cover grasses should be allowed. It is very unlikely to think that commercial or industrial buildings will be constructed on a completed landfill. If the end use is such that the public will be walking on the site, it is important that all manholes be properly secured, leachate lagoons fenced, and other potential hazards eliminated | vecchia discarica |
| old landfill site | vecchia discarica |
| old oak wood | vecchio querceto |
| Old world flycatchers | muscicapidi (Muscicapidae) |
| Old World monkeys | cercopitechi (Cercopithecidae) |
| Old World pigs | suidi (Suidae) |
| retrofitting of old plants Making changes to old industrial plants installing new equipment's and facilities for the disposal of gas emissions in the atmosphere, of waste water and waste material in soil and water | ammodernamento di vecchi impianti |
| urban renewal in old city centres | risanamento dei centri storici |
