Biological Impact of Exposure to Extremely Fine-Grained Volcanic Ash

Figure 8

Effect of Pichincha’s volcanic ash on the activity of the superoxide dismutase enzyme (SOD) in (a) A549 and (b) McCoy cell lines at 24 hours after treatment with 80, 320, and 1280 µg/cm³ of volcanic ash. ; (one-way ANOVA with Sidak’s post hoc test).

(a)

(b)