¹³C enriched C₆₀ fullerene was photo-irradiated for 0, 10, 30, or 60 days before being added to soil microcosms.

Approximately 0.78% of the 60 day irradiated C₆₀ was degraded in soils during incubation.

C₆₀ altered microbial community differently depending on photo-irradiation duration.