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Review Questions - Answer 8

 

  1. Ozone is primarily scrubbed from inhaled air in the nose.

          A. True
          B. False

Most ozone breathed penetrates into the lungs. Because ozone has limited solubility in water, the upper respiratory tract is not as effective in scrubbing ozone from inhaled air as it is for more water soluble pollutants such as sulfur dioxide (SO2) or chlorine gas (Cl2). Consequently, the majority of inhaled ozone reaches the lower respiratory tract and dissolves in the thin layer of epithelial lining fluid (ELF) throughout the conducting airways of the lung.

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