Glossary P

The Environmental Glossary. Letter P +++ Popular Articles: 'Parallel connection', 'Peak power', 'Process'

A Parts per million (ppm) is a unit commonly used to express a Concentration Ratio (proportion) equal to 10-6.

A Passive radon/radon Decay product measurement device is a radon or radon Decay product measurement system in which the sampling device, detector, and measurement system do not function as a complete, integrated unit.

A passive solar is using or capturing solar Energy (usually to Heat water) without any external power.

Deutsch: Pastoralismus / Español: Pastoralismo / Português: Pastoralismo / Français: Pastoralisme / Italiano: Pastoralismo

Pastoralism in the environmental context refers to a traditional form of livestock management in which communities or individuals raise and herd animals, such as cattle, sheep, goats, or camels, in natural pastures. This practice is closely tied to the sustainable use of land, ecosystems, and water resources, and is often associated with nomadic or semi-nomadic lifestyles. Pastoralism plays a key role in maintaining ecological balance in many regions, particularly in arid and semi-arid environments, but it also faces environmental challenges such as overgrazing, land degradation, and climate change.

A Pasture (or Pastureland) is Land used primarily for the production of domesticated Forage plants for livestock (in contrast to rangeland, where vegetation is naturally-occurring and

Deutsch: Weideland / Español: Pastizal / Português: Pastagem / Français: Prairie / Italiano: Pascolo

Pastureland refers to land used for grazing livestock. This land is primarily covered with grasses and other vegetation suitable for animal consumption. It plays a crucial role in the environment as it supports biodiversity, sequesters carbon, and provides ecosystem services such as water filtration and soil preservation.

Deutsch: Krankheitserreger / Español: Patógeno / Português: Patógeno / Français: Pathogène / Italiano: Patogeno /

A Pathogen is any microorganism that produces disease (bacteria, viruses, yeasts, molds and parasites).

Pathogens are Disease-causing organisms, such as some bacteria, viruses, or protozoa.

Deutsch: Umwelt: Wege / Español: Medio Ambiente: Caminos / Português: Meio Ambiente: Caminhos / Français: Environnement: Voies / Italiano: Ambiente: Percorsi /

Pathway is a way in which people are exposed to radiation or other contaminants.

Deutsch: Muster / Español: Patrón / Português: Padrão / Français: Modèle / Italiano: Modello /

A pattern is in EMAP, the location, distribution, and composition of structural landscape components within a particular geographic area or in a spatial context.