17 Questions
What is the most toxic dioxin among all the substances mentioned?
TCDD (2,3,7,8-tetrachlorodibenzo[1,4]dioxin)
Which of the following is NOT one of the 12 'dirties' that caused the thinning of the ozone layer?
Dioxins
What is the primary source of contamination of food with PCBs?
Open burning of PCB-containing solid waste
Which category of PCB usage accounted for 90% of PCB usage in the US in 1971?
Controllable Closed System
What type of processes are involved in stationary source contamination of dioxins?
Chemical processes involving chlorine
Which substance is commonly used as insulators or lubricants?
PCBs
What do the first two digits in the nomenclature of PCBs represent?
% of chlorine by mass
What causes some people in other regions to become more prone to skin cancer according to the text?
$Ozone$ layer thinning
What is the main usage category of PCBs referred to as 'Controllable Closed System' used for?
Capacitors and transformers
Why are dioxins or PCDDs typically synthesized as byproducts?
Accidental synthesis from burning certain materials
What are some examples of organic pollutants mentioned in the text?
PCBs and PAHs
How are dioxins or PCDDs typically synthesized according to the text?
By accidental synthesis as byproducts from certain processes
What is the most toxic dioxin mentioned in the text?
TCDD
Which process can lead to environmental contamination of PCBs?
Open burning or incomplete combustion of PCB-containing solid waste
What are the primary sources of contamination for dioxins?
Stationary sources like chemical processes involving chlorine
Which category of PCB usage involves small capacitors in small gadgets and lubricating fluids?
Non-controllable Closed System
What do the first two digits in the nomenclature of PCBs represent?
The number of carbons in the phenyl rings
Test your knowledge on various organic pollutants such as Polychlorinated Biphenyls (PCBs), Dioxins, Dibenzofurans, Polyaromatic Hydrocarbons (PAHs), Surfactants, Dyes, and Pesticides. Learn about the toxicity, uses, and sources of these pollutants.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
