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What is polychlorinated dibenzo-p-dioxins and dibenzofurans?

What is polychlorinated dibenzo-p-dioxins and dibenzofurans?

Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) are a group of persistent organic pollutants (POPs) widely distributed in the environment.

What was polychlorinated dibenzofurans used for?

Polychlorinated biphenyls (PCBs), dielectric and coolant fluids used in electrical apparatus, are considered persistent organic pollutants.

How are chlorinated dioxins formed?

Dioxins are formed as a result of combustion processes such as burning fuels like wood, coal or oil. According to EPA’s 2006 Dioxin Inventory of Sources Report man-made emissions, including backyard and household trash burning, dominated releases in the United States.

What is PCDD chemical?

Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of long-lived polyhalogenated organic compounds that are primarily anthropogenic, and contribute toxic, persistent organic pollution in the environment.

What is meant by Pcdd F?

Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) are two similar classes of chlorinated aromatic chemicals that are produced as contaminants or by-products. They have no known commercial or natural use.

Is TCDD a Pcdd?

The most toxic and most extensively studied representative of the chlorinated dioxins (PCDDs) is 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD).

What does Pcdd stand for?

PCDD

Acronym Definition
PCDD Polychlorinated Dibenzodioxins
PCDD Primary Care Drug Dictionary
PCDD Prevention of Cardiovascular Disease in Diabetes (epidemiology)

Who invented dioxin?

In 1943, the United States Department of the Army contracted botanist and bioethicist Arthur Galston, who discovered the defoliants later used in Agent Orange, and his employer University of Illinois Urbana-Champaign to study the effects of 2,4-D and 2,4,5-T on cereal grains (including rice) and broadleaf crops.

What is the connection between dioxin and chlorine?

There is poor correlation between total chlorine in waste streams and formation of polychlorinated dibenzodioxin and polychlorinated dibenzofuran (PCDD/F) during waste combustion. This is because the active chlorine (Cl) species are strongly dependent upon combustion conditions.