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| Terms for subject Environment (5949 entries) |
| pentachlorophenol (One of the universally toxic phenolic compounds, is a general purpose agent that is used as a fungicide, herbicide and molluscicide, particularly in Egypt where it is used to control snails that carry the larval human blood flukes that cause schistosomiasis. It is also used in wood preservatives and is very poisonous) | pentaklorofenol | |
| per capita data (No definition needed) | per capita datu | |
| per capita data (No definition needed) | biztanleko datu | |
| perchloroethylene (Stable, colorless liquid, nonflammable and nonexplosive, with low toxicity; used as a dry-cleaning and industrial solvent, in pharmaceuticals and medicines, and for metal cleaning) | perkloroetileno | |
| percolating water (Subsurface water that passes, under the force of gravity, through rocks or soil along the line of least resistance) | perkolazio-ur | |
| peripheral park area (A zone of the park where scientific research is allowed. Beyond this there is a buffer zone which protects the whole reserve from agricultural, industrial and urban development) | parkearen inguruko alde | |
| periphyton (A plant or animal organism which is attached or clings to surfaces of leaves or stems of rooted plants above the bottom stratum) | perifito | |
| periurban space (Any expanse of land or region located on the outskirts of a city or town) | hiri-inguru | |
| permafrost ecosystem (The interacting system of the biological communities and their nonliving environmental surroundings in a climatic region where the subsoil is perennially frozen) | permafrosteko ekosistema | |
| permeability (The ability of a membrane or other material to permit a substance to pass through it) | iragazkortasun | |
| permissible exposure limit (An exposure limit that is set for exposure to an hazardous substance or harmful agent and enforced by OSHA (Occupational Safety and Health Act) as a legal standard. It is based on time-weighted average concentrations for a normal 8-hour work day and 40 hour work week) | eposizio-muga baimendu | |
| permission (The license, formal consent or authorization to act on some matter, frequently validating the action as lawful or procedurally correct) | baimen | |
| peroxyacetylnitrate (A pollutant created by the action of sunlight on hydrocarbons and nitrogen oxides in the air. An ingredient of smog) | peroxiazetil nitrato | |
| persistence (The capacity of a substance to remain chemically stable. This is an important factor in estimating the environmental effects of substances discharged into the environment. Certain toxic substances (e.g., cyanides) have a low persistence, whereas other less immediately toxic substances (e.g., many organochlorines) have a high persistence and may therefore produce more serious effects) | iraunkortasun | |
| persistence of pesticides (The ability of a chemical to retain its molecular integrity and hence its physical, chemical, and functional characteristics in the environment through which such a chemical may be transported and distributed for a considerable period of time) | pestiziden iraunkortasun | |
| persistent organic pollutant | poluitzaile organiko iraunkor | |
| personal responsibility | erantzukizun pertsonal | |
| pest (Any organism that damages crops, injures or irritates livestock or man, or reduces the fertility of land) | izurri | |
| pest (Any organism that damages crops, injures or irritates livestock or man, or reduces the fertility of land) | izurrite | |
| pest control (Keeping down the number of pests by killing them or preventing them from attacking) | izurrien kontrol |