Staff of the Barbados Statistical Service are back on the job Tuesday.
Monday, scores of workers stood outside the Baobab Towers where the department is housed, complaining about a foul odour.
Several of them reportedly sought medical attention.
BSS director, Aubrey Browne says investigations are continuing to find the source of the problem.
He explained that the safety and health committee of the Ministry of Labour and Baobab's property managers are also looking into the matter.