Two children and their mother were unconscious Wednesday night when found. The three were taken to the hospital, along with a third child. Gregory Smith Journal Staff Writer Mark Reynolds Journal Staff Writer mrkrynlds SMITHFIELD, R.I. — Two children and their mother were unconscious Wednesday night when rescuers took them from their house, which was filled with carbon monoxide, authorities said. A third child, who was conscious, was also taken to the hospital. Firefighters went to 9 Pleasant View Ave., a one-level single-family house owned by the Greenville Public Library at about 8:33 p.m. after dispatchers fielded a 911 call from the family’s father, said Smithfield Fire Chief Robert Seltzer. Investigators measured the presence of carbon monoxide at a level of 700 parts per million initially, Seltzer said. A range of 35-40 parts per million is considered unsafe, he said. The children were ages 7, 9 and 11. The family’s father told authorities that he had gone into the garage to do something for a while, Seltzer said. When he returned to the house, he said, he determined there had been an apparent malfunction of the home’s heating system, noticed soot in the house, and realized something was wrong with the rest of his family. Seltzer did not identify the names of the family members. All three children and their mother were taken from the house on stretchers. A fire rescue from the Harmony Fire District in Glocester and two fire rescue trucks from Smithfield took the three children to…more detail