Energy resources and environmental pollution (L4)

Question 1

What type of pollutant is troposphere ozone

Answer 1

Secondary pollutant

Question 2

What is a secondary pollutant

Answer 2

Produced by chemical reactions involving primary pollutants

Question 3

What are the two main reactions with tropospheric ozone

Answer 3

NO2 = NO + O

O + O2 +O3

Question 4

Tropospheric ozone effects on plants

Answer 4

Decrease sequestration
Decrease ecological services
Food security

Question 5

Tropospheric ozone effects on humans

Answer 5

Ozone causes breathing difficulties

Increased rates of asthma

Question 6

How can you control tropospheric ozone

Answer 6

It is a secondary pollutant so you control it by reducing levels of primary pollutant
Example catalytic converters

Question 7

What are photochemical smogs

Answer 7

Ozone makes up a large proportion
Caused by vehicle exhaust emissions
Sunny conditions
Temperature inversion

Question 8

Equation for the formation of photochemical smogs

Answer 8

NO2 = NO + O
O + O2 = 03
NO + O3 + HC = PANS

Question 9

What are the daily fluctuations of PAN concentrations

Answer 9

High during mid day when it is the most sunny