Glossary A

Deutsch: Atom / Español: Atomo / Português: Atomo / Français: Atome / Italiano: Atomo
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is made up of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 pm (a ten-billionth of a meter, in the short scale).

Atomic energy is energy released in nuclear reactions. When a neutron splits an atom's nucleus into smaller pieces it is called fission.

An Atomic weight is the average weight (or mass) of all the isotopes of an element, as determined from the proportions in which they are present in a given element, compared with the

Atoms are Minute Particles that are the basic building blocks of all chemical elements and thus all matter.

Deutsch: Atrazin / Español: Atrazina / Português: Atrazina / Français: Atrazine / Italiano: Atrazina

Atrazine in the environmental context refers to a widely used herbicide primarily applied to control broadleaf and grassy weeds in crops such as Corn, sorghum, and sugarcane. It is one of the most commonly used herbicides worldwide, especially in the United States. While effective in agriculture, atrazine poses significant environmental and health risks due to its persistence in the environment, ability to contaminate Water sources, and its Potential to disrupt ecosystems.

An Atropine is a poisonous white crystalline alkaloid, C17H23NO3, from belladonna and related plants, used to relieve spasms of smooth muscles. It is an anticholinergic agent.

An Attainment Area is an area considered to have air quality as good as or better than the national ambient Air Quality Standards as defined in the Clean Air Act. An area may be an attainment Area

An Attenuation is the process by which a compound is reduced in Concentration over time, through absorption, adsorption, degradation, dilution, and/or transformation.

An Attractant is a chemical or Agent that lures insects or other pests by stimulating their sense of smell.

An attribute is any property, quality, or Characteristic of sampling unit. The Indicators and other measures used to characterize a sampling site or resource unit are representations

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Glossary A

Atom

Atomic energy

Atomic weight

Atoms

Atrazine

Atropine

Attainment Area

Attenuation

Attractant

Attribute

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