For the past few months, Bostonist has engaged in a scientific experiment. We've been sniffing around T stops to find out which ones are the most pleasant and which ones are an offense to the olfactory nerves. Each day this week, we'll evaluate the odors you will find at various T stops.

Today, the Blue Line:

Aquarium: High tide, dolphin pee
Airport: Pleather luggage, SFO-BOS redeye sweat, pee
Government Center: Dunkin Donuts, stale cigarette smoke, desperation, pee
Suffolk Downs: AquaNet, barnyard animals, failure, pee

Is a pattern emerging yet? Are there any smells and stops you'd like to add? Just you wait. We'll go sniffing the Green Line tomorrow!

Korri Crowley, Michael Femia, C. Fernsebner, Jon Petitt, Vidalia Shiraz, Caroline Roberts, and Victoria Welch contributed to this series. Image mashup by Caroline Roberts.