The Problem Of Air Pollution Particulate Matter

Question 1

What can you say about PM?

Answer 1

These are pollutants that can either be emitted directly into the atmosphere or formed from the transformation of gases in the atmosphere (secondary pollutants).

Question 2

True or false: particulate matter is usually classified by size(PM 2.5) .

Answer 2

True

Question 3

For secondary PM what are the precursor gases ?

Answer 3

Sulphate (SO4_-2), nitrate (NO3-), ammonium (NH4) , sea salt (NACI), soot (elementary carbon EC) and organic compounds

Question 4

True or false : PM usually has a short life time but can transported far.

Answer 4

True

Question 5

Will transitions from fuel dependent cars to electric cars reduce PM?

Answer 5

Most likely not as the origin of PM maybe to a large extent road and tire wear ,not necessarily exhaust. If 100% electrification of vehicles is achieved PM generated from that will reduces however road , break and tire wear remain constant or increase slightly

Question 6

Air pollution impacts ion human health .

Answer 6

Air pollution is among the top ten causes of death globally and kills 1 million people per year .
Lung cancer.
Chronic pulmonary diseases .
Respiratory issues etc.

Question 7

True or false : children are more vulnerable than adults to air pollution

Answer 7

True : they breath more air and are still developing physiologically

Question 8

True or false : children are more vulnerable than adults to air pollution

Answer 8

True : they breath more air and are still developing physiologically

Question 9

True or false : the economic costs of premature death and others diseases related to air pollution are extremely high.

Answer 9

True