WorkSafe is still making inquiries into an incident at Port of Tauranga on Thursday that resulted in three workers seeking hospital treatment.
A man and a woman, both aged 45 and from Tauranga, were discharged from Tauranga Hospital later that day but the third worker was kept overnight.
The 50-year-old Te Puke man was discharged from hospital on Friday.
A union representative for the 50-year-old told the Bay of Plenty Times the worker had sought medical help when he felt nauseous and believed he had been exposed to methyl bromide, a toxic gas used to fumigate logs at the port.
Read more: Three people in hospital after incident at the Port of Tauranga
Methyl bromide suspected as Tauranga port worker 'quarantined and decontaminated'