With students, teachers and staff preparing to return to classes in less than two weeks, new samplings of mold levels in a dozen Howard County schools are prompting more questions than answers about whether the air is safe to breathe.
The study, commissioned by the county and conducted by an outside environmental consultant and released earlier this month, found some spore levels were higher than industry standards.
What that means, exactly, has caused much head scratching. There are no "universally accepted" standards in the air-quality industry or state and federal government rule books.
A spokesman for the county schools said buildings are...