upload
United States Environmental Protection Agency
Industry: Government
Number of terms: 11955
Number of blossaries: 0
Company Profile:
U.S. Environmental Protection Agency (EPA) is a federal agency responsible for the development and enforcement of regulations for human health and environment protection. The agency researches and sets standards for environmental programs and delegates. It was founded in 1970 following the proposal ...
Når det gjelder kartlegging eksponeringsnivåer, mengden av et giftig stoff som er tatt inn i kroppen over en gitt tidsperiode.
Industry:Agricultural chemicals
Byråets forutsetning når du vurderer felles risikoen av kjemikalier som er toksikologisk lignende og handle på samme målområdet. Med andre ord, er det antatt at hver kjemisk oppfører seg som en konsentrasjon eller fortynning av hver andre kjemiske i CAG (eller kjemisk blanding). Responsen av kombinasjonen er svaret som forventet fra den tilsvarende dosen av en indeks kjemiske. Tilsvarende dosen er summen av komponenten doser, skalert av hver kjemisk giftige styrken i forhold til indeksen kjemiske.
Industry:Agricultural chemicals
Hvordan endrer en organisme som svar på et giftig stoff som sin totale eksponering på stoffet endringene. For eksempel, en liten dose av karbonmonoksid kan forårsake døsighet, en stor dose kan være dødelig.
Industry:Agricultural chemicals
Studiet av relasjoner mellom alle levende organismer og miljø, spesielt totaliteten eller mønster av interaksjoner; en visning som inkluderer alle plante- og dyrearter og deres unike bidrag til et bestemt habitat.
Industry:Agricultural chemicals
Anslag over antall brukes og brukeren utgifter for plantevernmidler er brutt ut separat for tre generell økonomisk bruker sektorer (eller markeder) som følger: landbruk, industri/kommersielle/statlige og hjem/hage.
Industry:Agricultural chemicals
Common international measurement for the quantity of greenhouse gas emissions. A metric ton is equal to 2205 lbs or 1.1 short tons.
Industry:Natural environment
El Niño, in its original sense, is a warm water current that periodically flows along the coast of Ecuador and Peru, disrupting the local fishery. This oceanic event is associated with a fluctuation of the intertropical surface pressure pattern and circulation in the Indian and Pacific Oceans, called the Southern Oscillation. This coupled atmosphere-ocean phenomenon is collectively known as El Niño-Southern Oscillation. During an El Niño event, the prevailing trade winds weaken and the equatorial countercurrent strengthens, causing warm surface waters in the Indonesian area to flow eastward to overlie the cold waters of the Peru current. This event has great impact on the wind, sea surface temperature, and precipitation patterns in the tropical Pacific. It has climatic effects throughout the Pacific region and in many other parts of the world. The opposite of an El Niño event is called La Niña.
Industry:Natural environment
The enhancement of the growth of plants as a result of increased atmospheric CO2 concentration. Depending on their mechanism of photosynthesis, certain types of plants are more sensitive to changes in atmospheric CO2 concentration.
Industry:Natural environment
Those practices or processes that result in the conversion of forested lands for non-forest uses. Deforestation contributes to increasing carbon dioxide concentrations for two reasons: 1) the burning or decomposition of the wood releases carbon dioxide; and 2) trees that once removed carbon dioxide from the atmosphere in the process of photosynthesis are no longer present.
Industry:Natural environment
Perennially (continually) frozen ground that occurs where the temperature remains below 0°C for several years.
Industry:Natural environment