Which of the following statements are true in the context of Ground Level Ozone 1 It ...........

Environment and Ecology Envirnment and Climate Change

Which of the following statements are true in the context of Ground Level Ozone?

1. It is formed through a complex reaction involving hydrocarbons, Nitrogen Oxides, and sunlight

2. This Ozone is formed when pollutants released from gasoline, diesel powered vehicles and oil based solvents react with heat and sunlight

3. While the ozone in the stratosphere protect earth from harmful UV radiation, ozone on ground is also good for human health

Select the correct answer using codes given below

1 and 2

2 and 3

1 and 3

1, 2 and 3

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Explanation:

3rd statement is incorrect i.e. While the ozone in the stratosphere protect earth from harmful UV radiation, ozone on ground is also good for human health

Third statement is incorrect because ozone is not good for human health.
Ground level or "bad" ozone is not emitted directly into the air, but is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight. Emissions from industrial facilities and electric utilities, motor vehicle exhaust, gasoline vapours, and chemical solvents are some of the major sources of NOx and VOC.
Breathing ozone can trigger a variety of health problems, particularly for children, the elderly, and people of all ages who have lung diseases such as asthma. Ground level ozone can also have harmful effects on sensitive vegetation and ecosystems.