Question

Identify the primary sources of ambient Nitrogen Dioxide (NO2).

1. High-temperature combustion of fuels in industrial processes.
2. Natural processes like photosynthesis.
3. Combustion activities related to heating, transportation, and power generation.
4. Evaporation of water bodies.

• A. i
• B. ii, iv
• C. iii
• D. i, iii

Answer 1

Answer:

D. i, iii

• Nitrogen dioxide (NO2) is a reddish-brown gas that is soluble in water, and a strong oxidant.

• Ambient sources of NO2 results from high temperature combustion of fuels in processes such as those used for heating, transportation, industry and power generation.

• Household sources of nitrogen oxides (NOx) include equipment that burn fuels such as furnaces, fireplaces and gas stoves and ovens.

• Exposure to nitrogen dioxide can irritate airways and aggravate respiratory diseases.