Question

prompt
explain how ozone is both beneficial and detrimental to human health.
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Explanation:

Ozone's impact on human health depends on its location in the atmosphere. In the stratosphere (ozone layer), it absorbs harmful ultraviolet (UV) radiation from the sun, preventing DNA damage, skin cancer, and eye damage in humans. At ground level (tropospheric ozone), it is a toxic air pollutant: it irritates the respiratory tract, worsens asthma and chronic lung disease, and can reduce lung function with prolonged exposure.

Answer:

• Beneficial: Stratospheric ozone forms the ozone layer, which absorbs harmful UV-B and UV-C radiation from the sun. This protects humans from DNA damage, increased risk of skin cancer, cataracts, and suppressed immune function.
• Detrimental: Ground-level (tropospheric) ozone is a secondary air pollutant. It irritates the eyes, nose, and throat, reduces lung function, exacerbates respiratory conditions like asthma and chronic obstructive pulmonary disease (COPD), and can cause permanent lung damage with long-term exposure.