Glossary P

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

A pollution prevention is techniques that eliminate waste prior to treatment, such as by changing ingredients in a chemical

Deutsch: Polonium / Español: Polonio / Português: Polônio / Français: Polonium / Italiano: Polonio

Polonium in the environmental context refers to a rare and highly radioactive element with the symbol Po and atomic number 84. Discovered in 1898 by Marie and Pierre Curie, it is unique due to its intense radioactivity and is found in trace amounts in the Earth's crust, typically associated with uranium ores. Despite its scarcity, polonium has significant environmental and health implications due to its radioactivity.

A polychlorinated biphenyls (PCBs) is a class of chemicals that were manufactured for industrial purposes as coolants and lubricants for electrical equipment until they were phased out in 1977. These highly persistent chemicals can still be found in older electrical equipment and in industrial waste sites.

- Polycyclic organic matter (POM) : A Polycyclic organic matter (POM) is Defines a broad class of compounds that includes the polycyclic aromatic hydrocarbon compounds (PAHs).

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:

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