Glossary A

The Environmental Glossary. Letter A +++ Popular Articles: 'Absorption', 'Abatement Debris', 'Acclimatization'

Deutsch: Sauer / Español: Ácido / Português: Ácido / Français: Acide / Italiano: Acido /

Acidic is the condition of water or soil that contains a sufficient amount of Acid substances to lower the pH below 7.0.

See Acid solution.

An acidification is Refers to reducing something's pH, making it more acidic; also means the loss of ANC.

Acidity may be defined as the quality, state or degree of being acid ; or the level of acid in a substance.

Acidity is measured in pH, or the negative log of the activity of the hydrogen ion in an aqueous solution. Solutions with a pH less than 7 are said to be acidic. The pH of an aqueous substance can be measured using a glass electrode and a pH meter, or with the use of pH indicators .

Or a more chemical definition: Acidity is a measure of the number of free hydrogen ions (H+) in a solution that can chemically react with other substances.

An Acre is the unit of measure most typically used to describe land area in the United States. It is equivalent to about 4046 square meters (m²) or (in the USA) to 43,560 square feet and is about 9/10 the size of an american football field.

- Acre-foot: An acre-foot (acre-ft) is the volume of water required to Cover 1 Acre of land (43,560 square feet) to a depth of 1 foot. Equal to 325,851 gallons or 1,233 cubic meters.

Deutsch: Akronym / Español: Acrónimo / Português: Acrônimo / Français: Acronyme / Italiano: Acronimo

Acronym in the environmental context refers to a shortened form of a name or phrase that is created using the initial letters of the words within that phrase. These acronyms are commonly used in environmental science, policy, and management to simplify the communication of complex terms, organizations, technologies, or regulations. Acronyms help professionals in the field convey information more efficiently, especially in documents, reports, and discussions where long or complex names might be cumbersome.

Deutsch: Aktion / Português: Action / Français: Action / Italiano: Action

In the environmental context, "action" refers to activities and initiatives taken to address environmental problems and promote sustainable practices.

Deutsch: Aktionsstufe / Español: Nivele de Acción / Português: Níveis de Ação / Français: Niveaux d'Action / Italiano: Livelli di Azione /

The term action level refers to a specific level of concentration of a toxic substance, contaminant or radiation that when met or exceeded, is considered dangerous enough for remedial or regulatory action by a governing body or other authority to be warranted.

An Action Packet is in reference to the IAQ Tools for Schools Kit6 - contains numerous products to assist school personnel to implement an effective yet simple IAQ program in their school.

Deutsch: Aktivkohle / Español: Carbón Activado / Português: Carvão Ativado / Français: Charbon Actif / Italiano: Carbone Attivo /

An Activated Carbon is a highly adsorbent form of carbon used to remove odors and toxic substances from liquid or gaseous emissions. In waste treatment, it is used to remove dissolved organic matter from waste drinking water. It is also used in motor vehicle evaporative control systems.