Author Biography


Wudan Yan

Wudan Yan ( is a journalist and contributing writer to IEEE Pulse based in Seattle, Washington.

Author Articles

Testing the Waters

Water on Earth—in our oceans, rivers, lakes, and wetlands—might seem plentiful, but water that is clean and safe enough to drink actually isn’t so abundant.

Cover Story

Grappling with the Health Consequences of Floods

In early September—when the rains from Hurricane Harvey finally subsided in Houston, Texas—Seth Pedersen loaded up his pickup truck with sample collection kits, waders, rubber boots, buckets, and a small aluminum fishing boat. Pedersen, a second year graduate student in environmental engineering at Rice University, was on a mission to test the water in homes flooded by Hurricane Harvey.