Global Climate Change - Ozone

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Ozone. Fill in the blanks

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Ozone is a triatomic molecule which is

than oxygen. In the troposphere is is a

In the stratosphere it is a

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How much of atmospheric ozone is in the stratosphere?

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Stratospheric Ozone acts as a primary UV radiation shield.

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Put the equations in order:

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1
2
3

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NO2 + uv --> NO + O
NO + HO2 --> NO2 + HO
O + O2 --> O3

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HO2 is a product of VOC reduction.

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Explanation

HO2 is a product of VOC oxidation!

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There is a

variation of the no2 photolysis rate. Measurements are taken in

under clear sky conditions.

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Choose all correct answers. NO and VOCs are emitted from:

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What is the threshold for critical load exceedence in ppb during summertime daylight hours for accumulated ozone exposure.

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For agricultural crops/semi natural vegetation the threshold for ozone exposure is set at

over a period of

and is associated with a yield loss of

At this level all of England and

and much of scotland are in exceedence.

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Material- ozone has a damaging effect on polymers, rubbers surface coatings and textiles. Due to lack of experimental data preliminary thresholds are set at:
Human health - ozone is an irritant, highly reactive and soluble. When inhaled it reacts immediately with organic molecules especially in the lungs. The suggested threshold has been set at:

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40-60 ppb.
20 ppb.

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It is difficult to isolate effects of ozone as ozone occurs alongside other pollutants however studies of hospital admissions suggest an increase of 0.35 - 6.1% actual extra hospital admissions due to ozone exposure.

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Excessive

can cause skin cancer, eye cataracts, damage to plants and building materials (photo oxidation). The rule of thumb is

in ozone will result in

penetration.

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Which mechanism was discovered in the 1930s to describe the photolysis of oxygen?

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Match the altitude to the description.

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High altitude
Low altitude
Intermediate altitude

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more UV and O2 so more O3 produced in Chapman reaction 1.
lots of O2 little solar UV, so not much Chapman reaction 1.
lots of solar UV, not much O2, so not much of Chapman reaction 1.

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Global Climate Change - Ozone

Question 1 of 1

Time Left

Ozone. Fill in the blanks

Fill in the blanks

(0/0)

How much of atmospheric ozone is in the stratosphere?

Select the correct answer(s).

(0/0)

Stratospheric Ozone acts as a primary UV radiation shield.

Select the correct answer(s).

(0/0)

Put the equations in order:

Match the text (click and drag)

(0/0)

1

2

3

NO2 + uv --> NO + O

NO + HO2 --> NO2 + HO

O + O2 --> O3

HO2 is a product of VOC reduction.

Select the correct answer(s).

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Explanation

Fill in the blanks

Fill in the blanks

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Choose all correct answers. NO and VOCs are emitted from:

Select the correct answer(s).

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What is the threshold for critical load exceedence in ppb during summertime daylight hours for accumulated ozone exposure.

Select the correct answer(s).

(0/0)

Fill in the blanks

Fill in the blanks

(0/0)

Match the answers

Match the text (click and drag)

(0/0)

Material- ozone has a damaging effect on polymers, rubbers surface coatings and textiles. Due to lack of experimental data preliminary thresholds are set at:

Human health - ozone is an irritant, highly reactive and soluble. When inhaled it reacts immediately with organic molecules especially in the lungs. The suggested threshold has been set at:

40-60 ppb.

20 ppb.

It is difficult to isolate effects of ozone as ozone occurs alongside other pollutants however studies of hospital admissions suggest an increase of 0.35 - 6.1% actual extra hospital admissions due to ozone exposure.

Select the correct answer(s).

(0/0)

Fill in the blanks

Fill in the blanks

(0/0)

Which mechanism was discovered in the 1930s to describe the photolysis of oxygen?

Select the correct answer(s).

(0/0)

Match the altitude to the description.

Match the text (click and drag)

(0/0)

High altitude

Low altitude

Intermediate altitude

more UV and O2 so more O3 produced in Chapman reaction 1.

lots of O2 little solar UV, so not much Chapman reaction 1.

lots of solar UV, not much O2, so not much of Chapman reaction 1.

Select all correct answers. In the following catalytic ozone destruction reaction: X + O3 --> XO + O2 XO + O --> X + O2

Select the correct answer(s).

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