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P.H Umbrella / Acid Rain Risk Detection

P.H Umbrella
P.H Umbrella

Rain's PH down due to car's exhaust emmissions causes acid rain.
Acid rain might cause skin diseases.
Most people, however, are exposed to rain without umbrella.
I wonder if they're going to avoid the rain when they get to know it's quite dangerous.
People can know the acid degree if the color of the umbrella made of Litmus test paper gets changed.
I'd suggest this special umbrella with acid rain sensor to make people avoid acid rain and know the nature is getting worse.


University of Ulsan

University of Ulsan
Ulsan, South Korea

Hwang Soon-Ho


University of Ulsan

University of Ulsan
Ulsan, South Korea

Jun-Hyun Park Young-il Lee Chang-Hee Jang