Ground-level ozone is primarily a pollutant that poses health risks.

Ground-level ozone is primarily a pollutant that poses health risks.

• A. True
• B. False
• C. Only during winter
• D. Only in rural areas

Answer: (B)

Ground-level ozone is a pollutant formed in the lower atmosphere when sunlight drives chemical reactions between nitrogen oxides and VOCs. It can irritate the airways, trigger asthma symptoms, and reduce lung function, so it does pose health risks. The reason this statement is flagged as false in this context is the word “primarily.” While ozone is a significant health risk, it isn’t necessarily the sole or primary pollutant of concern in all situations, and many guidelines compare its health effects to those of other pollutants (like particulate matter) that can have even greater or more consistent impacts. The phrasing makes the claim imprecise, so it’s considered not correct as stated.

Ground-level ozone is a pollutant formed in the lower atmosphere when sunlight drives chemical reactions between nitrogen oxides and VOCs. It can irritate the airways, trigger asthma symptoms, and reduce lung function, so it does pose health risks. The reason this statement is flagged as false in this context is the word “primarily.” While ozone is a significant health risk, it isn’t necessarily the sole or primary pollutant of concern in all situations, and many guidelines compare its health effects to those of other pollutants (like particulate matter) that can have even greater or more consistent impacts. The phrasing makes the claim imprecise, so it’s considered not correct as stated.