Fig. 2. Degradation of N-nitrosodimethylamine (NDMA) in soils with different landscape planting covers at room temperature (21°C). Vertical bars are standard deviations. BS, bare surface soil; BS*, autoclaved bare surface soil; GC, ground cover soil; GC*, autoclaved ground cover soil; TG, turfgrass soil; TG*, autoclaved turfgrass soil.