Abstract: A vehicle mounted H2S monitoring system is shown having a first sensor, a control module, a second sensor, and a vehicle. The first sensors are coupled to exterior locations on the vehicle and monitor air quality prior to a worker within the vehicle exiting. Second sensors are coupled to a portion of the worker and travel with that worker outside the vehicle. Both sets of sensors monitor environmental conditions for safety of the workers. The control module processes readings received from the sensors to assess environmental conditions and may automatically activate or broadcast an alert in real time to show the safety of the current levels. Alerts may be transmitted to a remote location for oversight.