part per billion (ppb); Abbreviations: bd=below detection limit; ad=above detection limit/-a: after 4 washes; -b: after 3 washes ; -c: no core liner used
Core_Exterior_Before_Cleaning
part per billion (ppb); Abbreviations: bd=below detection limit; ad=above detection limit/-a: after 4 washes; -b: after 3 washes ; -c: no core liner used
Core_Exterior_After_Cleaning
part per billion (ppb); Abbreviations: bd=below detection limit; ad=above detection limit/-a: after 4 washes; -b: after 3 washes ; -c: no core liner used
Core_Interior
part per billion (ppb); Abbreviations: bd=below detection limit; ad=above detection limit/-a: after 4 washes; -b: after 3 washes ; -c: no core liner used