IB Environmental systems and societies Topic 8.3D Tropospheric Ozone Revision Notes (HL)

IB Environmental systems and societies Topic 8.3D Tropospheric Ozone Revision Notes (HL) | RevisionDojo

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Tropospheric Ozone Is a Secondary Pollutant That Harms Health, Crops, and Materials

Tropospheric (ground-level) ozone is a secondary pollutant: it forms when $NO_x$ and VOCs react in sunlight, rather than being emitted directly.
It is a strong oxidising agent, so it attacks living tissue and materials wherever it builds up.

Common Mistake

'Good up high, bad nearby': stratospheric ozone shields us from UV, but tropospheric ozone is a pollutant.
Ground-level ozone, ozone-layer depletion and climate change are three separate issues, do not confuse them.

Biological Impacts: Ozone Damages Plants and Animal Tissue

Plants and crops
1. Ozone damages leaf cuticles and cell membranes, so plants lose water and take up fewer nutrients.
2. It lowers the rate of photosynthesis, cutting growth and crop yields.
Eyes
1. Ozone irritates the eyes, causing redness, burning and watering.
2. Repeated exposure raises the risk of chronic problems such as conjunctivitis.
Respiratory system
1. Ozone inflames the airways, reducing lung function and triggering coughing, chest pain and breathlessness.

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Excepteur sint occaecat cupidatat non proident

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Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Tropospheric Ozone Is a Secondary Pollutant That Harms Health, Crops, and Materials

Tropospheric (ground-level) ozone is a secondary pollutant: it forms when $NO_x$ and VOCs react in sunlight, rather than being emitted directly.
It is a strong oxidising agent, so it attacks living tissue and materials wherever it builds up.

Common Mistake

'Good up high, bad nearby': stratospheric ozone shields us from UV, but tropospheric ozone is a pollutant.
Ground-level ozone, ozone-layer depletion and climate change are three separate issues, do not confuse them.

Biological Impacts: Ozone Damages Plants and Animal Tissue

Plants and crops
1. Ozone damages leaf cuticles and cell membranes, so plants lose water and take up fewer nutrients.
2. It lowers the rate of photosynthesis, cutting growth and crop yields.
Eyes
1. Ozone irritates the eyes, causing redness, burning and watering.
2. Repeated exposure raises the risk of chronic problems such as conjunctivitis.
Respiratory system
1. Ozone inflames the airways, reducing lung function and triggering coughing, chest pain and breathlessness.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Topic 1: Foundation 3 subtopics

Topic 2: Ecology5 subtopics

Topic 3: Conservation and biodiversity3 subtopics

Topic 4: Water4 subtopics

Topic 5: Land2 subtopics

Topic 6: Atmosphere and climate change4 subtopics

Topic 7: Natural resources3 subtopics

Topic 8: Human populations and urban systems3 subtopics

HL lenses 3 subtopics

IB Environmental systems and societies 8.3D Tropospheric Ozone Notes

Topic 1: Foundation 3 subtopics

Topic 2: Ecology5 subtopics

Topic 3: Conservation and biodiversity3 subtopics

Topic 4: Water4 subtopics

Topic 5: Land2 subtopics

Topic 6: Atmosphere and climate change4 subtopics

Topic 7: Natural resources3 subtopics

Topic 8: Human populations and urban systems3 subtopics

HL lenses 3 subtopics

Tropospheric Ozone Is a Secondary Pollutant That Harms Health, Crops, and Materials

Biological Impacts: Ozone Damages Plants and Animal Tissue

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Tropospheric Ozone Is a Secondary Pollutant That Harms Health, Crops, and Materials

Biological Impacts: Ozone Damages Plants and Animal Tissue

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account