Pros Accurate Detection: Nicotine tests provide specific, measurable evidence of smoking that can confirm or refute suspicions, leading to targeted remediation Policy Enforcement: Clear evidence from tests can help operators enforce non-smoking policies more effectively and fairly by correlating violations with tangible evidence Customer Confidence: Demonstrating the use of rigorous testing procedures can build trust with customers, ensuring them of a smoke-free environment Cons Cost of Testing Kits: Regular use of nicotine testing kits can become costly, especially for large fleets requiring frequent testing Increased Vehicle Downtime: Time-consuming cleaning with test kits can delay vehicle availability for users Labor-Intensive Process: Performing tests on multiple vehicles needs many employees and does not scale well Potential for False Positives/Negatives: While reliable, chemical tests are not infallible and can sometimes produce false results, leading to unnecessary actions or missed detections 5

Each belief was modeled separately and adjusted for susceptibility and use status
Satellite-based spatiotemporal trends in PM 2.5 concentrations: China, 20042013
Lin, Y., Liang, L., Ding, R., Prosper, A