SEATTLE - The University of Washington ran a study to see if drug smoke from fentanyl and methamphetamine is affecting transit operators and passengers.
"We consistently put [detectors] by the operator on their seat and that's to be representative of their exposures," said Marissa Baker, a UW assistant professor of environmental and occupational health sciences who co-led the assessment.
Researchers additionally hid the battery-powered monitoring devices behind signs and panels. Same with trains.
