tropospheric ozone and carbon monoxide

Question 1

what are the effects of tropospheric ozone

Answer 1

• toxic to plants = reduces growth rates of trees and agricultural crops
• difficulty breathing and increases asthma rates
• production of secondary pollutants in photochemical smogs and acid rain

Question 2

what are the sources of tropospheric ozone

Answer 2

• a secondary pollutant produced by photochemical reactions involving oxides of nitrogen
  1) nitrogen dioxide broken down by UV light into nitrogen monoxide and oxygen
  2) the oxygen reacts with O2 forming O3

Question 3

how can tropospheric ozone be controlled

Answer 3

• levels can be controlled by limiting the primary pollutants that produce it ie catalytic converters, urea sprays ect

Question 4

what is carbon monoxide

Answer 4

produced when carbon-based materials are burnt in a shortage of oxygen ie incomplete combustion of hydrocarbons

Question 5

what are the effects of carbon monoxide

Answer 5

• binds to haemoglobin and prevents the carrying of o2 from lungs to the tissues of the body= brain damage/ death
• low conc- increases chances of chronic heart disease

Question 6

how can carbon monoxide be reduced

Answer 6

catalytic converters- oxides carbon monoxide into carbon dioxide