Coronavirus and UV-C

The COVID-19 pandemic is caused by the SARS-CoV-2 coronavirus, in the same group of viruses which caused the SARS epidemic in 2002-4 and the MERS outbreaks in 2015-18.

Cryptosporidium in Portland Drinking Water

Cryptosporidium was found at low levels in Portland city water several years ago. As a result, the Portland Water Bureau now tests for cryptosporidium almost daily, and has begun a project to treat our city water to remove Cryptosporidium, but the project won’t be completed until 2027.

My view of the world’s drinking water needs

The world recently passed a unique threshold. In all of humankind’s history, the majority of people lived in rural settings. That is, until 2016 when the urban population surpassed the rural population.