The presence of specific polycyclic aromatic hydrocarbons (PAHs) in the red blood cells of seagulls indicates ________

A) recent exposure to pollutants from nuclear waste
B) recent exposure to pollutants from oil spills
C) long-term exposure to pollutants from oil spills
D) long-term exposure to pollutants from nuclear waste
E) nothing of concern as PAHs are normally present in red blood cells


B

Environmental & Atmospheric Sciences

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