There are no set health limits for exposure to that mold, but the levels are not high, said Ed Delorme, the SCM industrial hygienist who took air and surface samples at the school. Tom Brandon, district facilities director, said McLoughlin's indoor air quality is generally good. Stachybotrys is not harmful in its dormant state, but if conditions are right it can bloom and release toxic spores. The spores can sicken people who breathe them. Children under the age of 1 are the most susceptible, but older people exposed to high concentrations may experience flulike symptoms, said Dr. Larry Jecha of the Benton-Franklin District Health Department.
Mold only exists when there is moisture and a food source, such as wood fibers.
There have been no reported illnesses associated with the mold at McLoughlin. But the school nurse has been instructed how to handle complaints, said Principal Dianna Veleke. Parents are encouraged to contact the nurse if they think their child suffered any problems from the mold. Brandon said the district decided to have McLoughlin evaluated after a teacher complained of a moldy smell. A representative of the district's insurance carrier also noticed a smell when she walked through the building, which is home to Washington's largest middle school student body.