TEMPE -- Eight Tempe teachers who have been diagnosed with benign brain tumors said condition at their school might be partially to be blame.

All eight worked at Corona del Sol High School near Rural and Warner roads in Tempe.

They said they've been trying to improve conditions for two years.

The school district hired an agency to run some tests at the school. It came back with a 70-page report this week. The district said there were no long-term negative effects that would cause brain tumors.

The tests did find serious air-quality problems at the school. The district said it's addressing those issues.