Staff and swimmers treated for chemical exposure at Greensborough's Watermarc pool The Watermarc pool at Greensborough. Picture: Glenn Daniels Source: Leader TEN people have been treated for chlorine exposure at Greensborough's Watermarc pool. MFB spokesman Trevor Woodward said the pool staff were conducting a "dechlorination" when chlorine fumes escaped into the air ducts about 10am. "Ten people were affected by the fumes and were treated at the scene with oxygen," Mr Woodward said. Most were fine but two were taken to hospital by ambulance. The warm water pool and some upstairs rooms were evacuated during the incident. The main pool, which was reportedly hosting a school swimming carnival, was not affected by the incident. Exposure to chlorine fumes can cause symptoms including burning of eyes, nose, and mouth, choking, chest pain, vomiting, dizziness and skin blisters.