Question

Besides external sources, what household equipment can generate ozone?

1. Ozone can be generated by certain household equipment, such as portable air cleaners.
2. Household refrigerators are a common source of ozone generation.
3. Ozone is exclusively generated from outdoor pollution sources.

• A. None of these
• B. ii, iii
• C. i only
• D. ii only

Answer 1

Answer:

C. i only

• Ground-level ozone (O3) is a major component of smog.

• It is formed from photochemical reactions with pollutants such as volatile organic compounds, carbon monoxide and nitrogen oxides (NOx) emitted from vehicles, and industry.

• Due to the photochemical nature, the highest levels of ozone are seen during periods of sunny weather.

• ozone can also be generated by household equipment, such as portable air cleaners.

• Exposure to excessive ozone can cause problems like - Breathing, trigger asthma, reduce lung function and lead to lung disease.