In this borough of 2,900
in the westernmost part of the state, the steel
industry used to be the primary employer. Today,
Midland's schools offer the most jobs —
and now are beginning to unravel a mystery that
could affect the health of their students.
For five days this fall, USA TODAY monitored
the air near Midland Elementary-Middle School,
a red-brick building blocks from the riverside
steel plants that defined the town for generations.
It was one of 95 schools in 30 states where the
newspaper teamed with scientists at Johns Hopkins
University and the University of Maryland to take
samples and analyze toxic chemicals in the air...