Question

Which of the following is NOT listed as a component of Particulate Matter in the notes?

• A. Sulphate
• B. Carbon dioxide
• C. Ammonia
• D. Sodium chloride

Answer 1

Answer:

B. Carbon dioxide

• Particulate matter (PM) refers to inhalable particles, composed of sulphate, nitrates, ammonia, sodium chloride, black carbon, mineral dust or water.

• PM can be of different size and is generally defined by their aerodynamic diameter, with PM_2.5, and PM₁₀, the most common in the regulatory framework and relevant for health.