Getting Sick (02:24)

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Polluting the environment causes outbreaks of Asthma, Dengue Fever, and Cholera. Citizen Scientists using their smartphones can help reduce risks in their communities. Waleed Abdalati is a former Chief Scientist for NASA.

Propeller Health App vs. Asthma: Part One (03:31)

25 million Americans suffer from Asthma; 13% of Louisville's population is afflicted. David Van Sickle from Propeller Heath decided to create a sensor after learning about the Barcelona outbreak in 1980.

Propeller Health App vs. Asthma: Part Two (05:48)

Louisville partnered with Propeller to distribute the sensors to its citizens. Experts and participants describe the benefits of constant long-term monitoring. Meredith Barrett compiles the data to establish patterns and comparisons across a wide area.

Counting Trucks: Clearing the Air: Part One (05:00)

Asthma afflicts Cassandra Martin and her three Children. Margaret Gordon and Brian Beveridge founded the "West Oakland Environmental Indicators Project" to discover the root causes of Asthma within West Oakland. In 2001, the organization began counting the amount of trucks passing through the neighborhood on the way to the port and requested a truck route ordinance.

Counting Trucks: Clearing the Air: Part Two (06:04)

"West Oakland Environmental Indicators Project" volunteers start collecting air quality data on contaminated areas. High schools students use sensors to discover the amount of pollution in BART Stations and presented their findings at the American Geophysical Union. Martin explains how much she has learned about toxins since joining the organization.

Clues to a Killer Medical Mapping: Part One (04:02)

Cholera first arrived in London in 1832. The government passed the Nuisance laws, banning cesspits and requiring new homes to be attached to sewers. Although the law had good intentions, several more outbreaks occurred.

Clues to a Killer Medical Mapping: Part Two (04:45)

John Snow and Reverend Henry Whitehead discovered the source of the outbreaks. Water carrying the disease infiltrated the pump on Broad Street in SoHo. Richard Barnett explains how this is one of the first cases of solving a medical mystery using geocoded data.

Mosquito Alert: Humans Bite Back: Part One (02:19)

Mosquitos carry diseases such as Zika, Dengue Fever, and Chikungunya and breed in water located in containers. Stopping the spread requires community involvement, especially in poorer locations, and citizen scientists.

Mosquito Alert: Humans Bite Back: Part Two (07:28)

When the Asian Tiger Mosquito began to spread in Barcelona, volunteers used a smartphone app to locate where the species was breeding. Barcelona is the first city to possess an Office of Citizen Science. Experts describe the benefits of the Mosquito Alert app, its findings, and how they partnered with the city to eradicate the spread.

Mosquito Alert: Humans Bite Back: Part Three (02:29)

The developers of the app hope that it will be able to be used globally; a test program is being run in Hong Kong. The National Oceanic and Atmospheric Administration, NASA, The National Science Program and the State Department support the Globe program in Brooklyn. Experts describe how to prevent the spread of mosquitoes and the benefit of citizen scientists.

Medic Mobile: Doing More with Less (08:25)

Jane Katanu Kavita works as the African Regional Designer for Medic Mobile and demonstrates how community health workers use the app. The software transfers the data to larger clinics, which reduces time and resources. Developers and participants of the company discuss the benefits.

Cities, Citizens, and Citizen Science (02:48)

Developers and volunteers from Mosquito Alert, West Oakland Environmental Indicators Project, Medic Mobile, and Propeller Health discuss the advantages of Citizen Scientists. Abdalati summarizes the episode.

Credits: The Crowd and the Cloud: Episode 3—Viral vs. Virus (01:34)

Credits: The Crowd and the Cloud: Episode 3—Viral vs. Virus