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Exposure trends over time of selected work groups for all states for hexane. WG1 = ‘All land (LA)’, WG2 = ‘Repaired oily booms’ (LA), WG3 = ‘Decon/General Area/Land’ (LA), WG4 = ‘Tank work (entered + worked outside)’, WG5 = ‘Cleaned beaches/non-specific tasks’, WG6 = ‘Beaches & marshes: multiple tasks’. Lack of a symbol for a particular TP means either that no samples were taken or the measurements did not meet the N > 5 and censoring <80% criteria.
