30. Recent studies have found that fine particulate matter with a diameter of 2.5 um or less can have negative human health effects. Which of the following correctly links a negative
human health effect to an anthropogenic source of fine particulate matter?
a. High rates of respiratory disease from power plant emissions
b. High rates of skin cancer in urban areas with sewage treatment plants
c. High rates of asthma from salt spray in coastal communities
d. High rates of genetic deformities from additives in food supplies