The model finished. Alena rotated the view. The color-coded isopleths pulsed outward from the proposed smokestack: blue (safe), green (caution), yellow (warning), and then—a fist of red reaching directly over the village of Santa Clara.
She opened the “Source Parameters” tab. Her cursor hovered over the stack height. Minera Global wanted 45 meters. She knew, from her own pilot runs, that a 75-meter stack would lift the emissions above the inversion layer. The red would become orange. Orange would become yellow. Santa Clara would breathe. aermod view
In the final save dialog, she clicked . The model did not judge. It only calculated. But for the first time all week, the silence after the run sounded like peace. The model finished
The Invisible Line
The cost difference was $2.3 million. The cost of a childhood asthma ward? Priceless. She opened the “Source Parameters” tab