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| Terms for subject Environment (21638 entries) |
| chloride-containing drilling muds and wastes | lamas e outros resíduos de perfuração contendo cloretos | |
| chlorinated emulsions | emulsões cloradas | |
| chlorinated engine, gear and lubricating oils | óleos clorados de motores, transmissões e lubrificação | |
| chlorinated hydrocarbon (A class of persistent, broad-spectrum insecticides that linger in the environment and accumulate in the food chain. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, mirex, hexachloride, and toxaphene. In insects and other animals these compounds act primarily on the central nervous system. They also become concentrated in the fats of organisms and thus tend to produce fatty infiltration of the heart and fatty degeneration of the liver in vertebrates. In fishes they have the effect of preventing oxygen uptake, causing suffocation. They are also known to slow the rate of photosynthesis in plants. Their danger to the ecosystem resides in their rate stability and the fact that they are broad-spectrum poisons which are very mobile because of their propensity to stick to dust particles and evaporate with water into the atmosphere) | hidrocarbonetos clorados | |
| chlorinated hydrocarbon | hidrocarbonetos clorados | |
| chlorinated hydrocarbons | hidrocarbonetos clorados | |
| chlorinated hydrocarbons | hidrocarboneto clorado | |
| chlorination (The application of chlorine to water, sewage or industrial wastes for disinfection or other biological or chemical purposes) | cloragem | |
| chlorine (A very reactive and highly toxic green, gaseous element, belonging to the halogen family of substances. It is one of the most widespread elements, as it occurs naturally in sea-water, salt lakes and underground deposits, but usually occurs in a safe form as common salt (NaCl). Commercially it is used in large quantities by the chemical industry both as an element to produce chlorinated organic solvents, like polychlorinated biphenyls (PCBs), and for the manufacture of polyvinyl chloride plastics, thermoplastic and hypochlorite bleaches. Chlorine was the basis for the organochlorine pesticides, like DDT and other agricultural chemicals that have killed wildlife. The reactivity of chlorine has proved disastrous for the ozone layer and has been the cause of the creation of the ozone hole, which was first detected in the Southern Hemisphere over Antarctica and then over the Northern Hemisphere) | cloro | |
| chlorodifluoromethane | clorodifluorometano | |
| chloroethylene (A flammable, explosive gas with an ethereal aroma; soluble in alcohol and ether, slightly soluble in water; boils at -14° C; an important monomer for polyvinyl chloride and its copolymers; used in organic synthesis and in adhesives) | cloroetileno | |
| chlorofluorocarbon (Gases formed of chlorine, fluorine, and carbon whose molecules normally do not react with other substances; they are therefore used as spray can propellants because they do not alter the material being sprayed) | clorofluorcarbonetos | |
| chlorofluorocarbon | clorofluorcarboneto | |
| chlorofluorocarbon | clorofluorcarbonetos | |
| chlorofluorocarbon | clorofluorcarbonos | |
| chlorofluorocarbon compound | composto de clorofluorcarboneto | |
| chlorofluorocarbons | clorofluorocarboneto | |
| chlorofluorocarbons | clorofluorcarbonos | |
| chlorofluorocarbons | clorofluorcarboneto | |
| chlorofluorocarbons | clorofluorcarbonetos |