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| Terms for subject Environment (6786 entries) |
| substitution of halogenated compounds (Halogenated compounds, because of their toxical and persistent character, should be substituted by environmental friendly compounds, like water-based fat solvents in metal processing industry or water-based coating agents) | halogenēto savienojumu aizstāšana | |
| substitution of phosphate (Replacement of phosphate in detergents by environmentally safer substances, such as zeolite. The substitute will not act as a nutrient, and so will not cause eutrophication as a result of the accelerated growth of plants and microorganisms if it is released into waterways) | fosfāta aizstāšana | |
| substrate cultivation | substrāta kultivēšana | |
| subtropical ecosystem (The interacting system of a biological community and its non-living environmental surroundings in regions bordering on the tropics or the regions between tropical and temperate zones) | subtropiskā ekosistēma | |
| suburb (A residential district situated on the outskirts of a city or town) | priekšpilsēta | |
| sudden load (Sudden immission in considerable amount of one or more pollutants in the atmosphere, in a water body or in the soil) | pēkšņa slodze | |
| sugar (A sweet crystalline or powdered substance, white when pure, consisting of sucrose obtained mainly from sugar cane and sugar beets and used in many foods, drinks, and medicines to improve their taste; product) | cukurs | |
| sugar industry (Establishments primarily engaged in processing raw cane sugar, sugar beets or starches to finished sucrose, glucose or fructose. By-products of this industry include beet pulp and inedible molasses) | cukura rūpniecība | |
| sulphate (A salt or ester of sulfuric acid, widely distributed in nature and often found in the atmosphere) | sulfāts | |
| sulphide (Any compound that includes one or more sulfur atoms with a more electropositive element, either carbon, metal or some other nonoxygen atom) | sulfīds | |
| sulphur (A nonmetallic element existing in a crystalline or amorphous form and in four stable isotopes; used as a chemical intermediate and fungicide, and in rubber vulcanization. It is deposited from volcanic vents and fumaroles and also is found in sedimentary rocks, particularly with gypsum and limestone, and associated with salt-domes. Native sulphur is the main source of sulphur for the sulphuric acid industry, followed by sour gas (natural gas containing hydrogen sulphide) and pyrite. Sulphur is an essential plant macronutrient, S) | sērs | |
| sulphur concentration (Sulphur content in a solution) | sēra koncentrācija | |
| sulphur dioxide (Emissions of the gas given off during the burning of fossil fuels in power stations and other boilers. Sulphur dioxide is created because sulphur is an impurity in most coal and oils. When the fuel is burned the hot sulphur reacts with oxygen in the atmosphere to form sulphur dioxide, SO2) | sēra dioksīds | |
| sulphur monoxide (A gas at ordinary temperatures; produces an orange-red deposit when cooled to temperatures of liquid air; prepared by passing an electric discharge through a mixture of sulfur vapor and sulfur dioxide at low temperature) | sēra monoksīds | |
| sulphur oxide (An oxide of sulphur, such as sulphur dioxide and sulphur trioxide; they are formed primarily from the combustion of fossil fuels; major air pollutants and cause of damage to the respiratory tract as well as vegetation, SOx) | sēra oksīds | |
| sulphuric acid (A toxic, corrosive, strongly acid, colorless liquid that is miscible with water and dissolves most metals, and melts at 10C; used in industry in the manufacture of chemicals, fertilizers and explosives, and in petroleum refining) | sērskābe | |
| supervised image classification (A graphical representation processing technique by which an analyst selects groups of pixels, determines their spectral response signature and trains a computer system to recognize pixels based on this spectral response pattern) | uzraudzīta attēlu klasificēšana | |
| supervision of building works (The oversight or direction in the construction and maintenance of houses, facilities, offices and other structures) | būvdarbu pārraudzība | |
| supervision of installation (The oversight or direction over the process of setting up or making adjustments to a building or to a mechanical or electrical system or apparatus) | aprīkojuma uzstādīšanas pārraudzība | |
| supervisory body (An appointed or official group given the responsibility of overseeing or managing normal work operations, special projects or other functions of an organization or agency) | uzraudzības iestāde |