Glossary P

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

Polymers are Long chains of chemicals, that can be twisted and molded into products. Petroleum is heated at very high temperatures to be broken down into Polymers and made into

A Polymorphonuclear leukocyte (PMN) is One of several types of white blood Cells that is involved in the inflammatory response following ozone-induced cell damage.

A Polyurethane Spray Foam (SPF) is
Polyurethane spray foam is an insulating foam material often used on rooftops.

A Polyvinyl chloride (PVC) is a polymer of vinyl chloride. It is tasteless, odorless and insoluble in most organic solvents. A member of the family vinyl resin, used in soft flexible

A Pool is an area of relatively deep slow water in a stream that offers shelter to fish.

A Pooled estimate of variance is an estimate of precision derived from different sets of duplicates, calculated as follows:

Deutsch: Bevölkerung / Español: Población / Português: População / Français: Population / Italiano: Popolazione /

A population is (1) the whole number of inhabitants in a country, region or area; (2) a set of individuals having a quality or Characteristic in common.

A population estimation is Classic survey estimation of population parameters.

population units are the entities that make up a target population.

Deutsch: Pore / Español: Poro / Português: Poro / Français: Pore / Italiano: Poro /

A Pore is an open space in rocks and soils

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