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| Terms for subject Environment (6187 entries) |
| oil pollution (Contamination of any ecosystem, but usually of freshwater or marine ecosystems, by oil or other petroleum products) | olajszennyezés | |
| oil production (The petroleum industry is a complex industry utilizing complex combination of interdependent operations engaged in the storage and transportation, separation of crude molecular constituents, molecular cracking, molecular rebuilding and solvent finishing to produce petrochemical products. Treatment may involve oil separation, precipitation, adsorption, and biological treatment. The refining operations can be divided into four major steps: separation, conversion, treating, and blending. The crude oil is first separated into selected fractions (gasoline, kerosine, fuel oil, etc.). Some of the less valuable products such as heavy naphtha, are converted to products with a greater sale value such as gasoline. The final step is the blending of the refined base stocks with each other and various additive to meet final product specifications. The major pollutants emitted are sulphur oxides, nitrogen oxides, hydrocarbons, carbon monoxide, and malodorous materials; chain) | olajtermelés | |
| oil recovery vessel (Boats used for recovering oil spilled at sea from oil tankers. The recommended procedure is to contain and physically recover the spill with or without the use of adsorbents. This approach entails three processes: 1. confinement of the spill by spill booms; 2. recovery of the spill by sorbing agents; 3. physical removal of the contained oil by oil pick-up devices) | olajvisszanyerő hajó | |
| oil refinery (System of process units used to convert crude petroleum into fuels, lubricants, and other petroleum-derived products) | olajfinomító | |
| oil refining (The separation of petroleum mixtures into their component parts) | olajfinomítás | |
| oil residue recuperation (The recovery of oil that is leftover or left behind, usually following the primary containment operations for an oil spill) | olajmaradék visszanyerés | |
| oil shale (A kerogen-bearing, finely laminated brown or black sedimentary rock that will yield liquid or gaseous hydrocarbons on distillation) | olajpala | |
| oil slick | olajfolt | |
| oil spill (The accidental release of oil, or other petroleum products usually into freshwater or marine ecosystems, and usually in large quantities. It can be controlled by chemical dispersion, combustion, mechanical containment, and absorption) | olajkiömlés | |
| oil tanker (A very large ship which carries crude oil or other petroleum products in big tanks) | tartályhajó | |
| oil tanker (A very large ship which carries crude oil or other petroleum products in big tanks) | olajtartályhajó | |
| oil-based energy (Energy produced using oil as fuel) | olajból nyert energia | |
| oily water | olajos víz | |
| 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) | régi veszélyes lerakóhely | |
| 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) | régi hulladéklerakó | |
| olfactometry (The testing and measurement of the sensitivity of the sense of smell) | odorimetria/szagmérés | |
| olfactory pollution (Pollution produced by gaseous emissions in the atmosphere that, even in very small amounts, may cause injuries or a condition of general unease or sickness to persons living in the vicinity) | szagszennyezés | |
| olive oil mill wastewater (Aqueous residue deriving from the process of oil extraction from olives; it is composed of the olive-combined water and of the water used in the extraction and washing processes. It also contains a certain percentage of mineral compounds and of organic substances that are only partially biodegradable) | olívaolaj préselés szennyvize | |
| on-line service (Service providing an active connection with a communications network) | online/hálózaton hozzáférhető szolgáltatás | |
| on-site wastewater treatment (A process in which used or spent water is treated at the point of origin or where it was produced, by using a septic tank or some other system to remove or reduce the impact of constituent wastes on human health and the environment) | helyszíni szennyvízkezelés |