Massachusetts Bay Transportation Authority lines

We measured Alcohol, Carbon Monoxide, Dust, Hydrogen, Hazardous Gas levels along with the light amount and temperature of Boston Metro stations. The purpose of the study is to inform commuters of Boston Metro of the environment they are exposed to daily. The data was collected in the summer of 2015, more specifically from the end of July to the beginning of August. The measurements were made with the third prototype shown under PROTOTYPE. For accurate results, the measurement was always made during the daytime from 12 PM to 4 PM, and its location, in the middle of subway platforms. In a brief context, the stations that were closer to downtown had higher gas levels due to higher usage of the stations; more people indicated higher gas levels. Detailed results are shown in the videos and the Interactive Map provided below. As mentioned under FUTURE PLANS, the study can go into several directions: applications to other metro systems (New York, Washington, Chicago, etc.,), campaigns utilizing the device, and commercialization for private usage. 

Click on one of our videos to compare air quality from station to station.