Showing posts written by Evan Walters
Per- and polyfluoroalkyl substances (PFAS) have become a global focus in environmental analysis. With this attention comes the need for reliable, efficient sample preparation methods. The U.S. EPA has...
Per- and polyfluoroalkyl substances (PFAS) are a highly persistent group of synthetic chemicals that can be toxic to humans through bioaccumulation, gradual build up over time. In fact, toxicological ...
Pesticide residues in food, even at low levels, pose significant health risks and have been linked to chronic illnesses and developmental issues. To protect consumers, regulatory authorities closely m...
Environmental laboratories are often required to demonstrate that their procedures do not introduce background contamination or interferences that would result in false positives or poor analytical pe...
In the United States, the Environmental Protection Agency (EPA) establishes performance criteria in which laboratories must demonstrate their technical capability to produce results that are accurate ...
Throughout my entire life I have always had an appreciation for water. Growing up in the Midwest, I spent my summers at the lake and winters in the snow. As a child, school taught me that water makes ...
Every day, you are exposed to toxic pollutants at various levels and frequencies. There are thousands of different toxins that exist in the world, most of them being directly related to the activities...
Have you ever heard about monitoring wastewater for Covid-19 outbreaks? If you haven’t, let me be the first to tell you that environmental chemists can monitor Coronavirus outbreaks on a routine basis...
If you live in an urban area or city, then you may be familiar with paying a water bill for the water you utilize in your home. For the most part, this water bill covers the cost of water testing, tre...