By Greg Barnes Most people would agree, river otters are adorable. But beyond their playfulness, the otters have an important role in determining the health of a river system. At N.C. State University, scientists this year released two studies on river otters that they plan to use as baselines for future research. The first study, […]
![plate holding grains of dark red metal. According to the US Department of Labor, hexavalent chromium [Cr(VI)] is one of the states of the element chromium. It is usually produced by an intensive heating process, such as burning or in industry. Cr(VI) is known to cause cancer. In addition, it targets the respiratory system, kidneys, liver, skin and eyes. Image courtesy Wikimedia Commons](https://i0.wp.com/www.northcarolinahealthnews.org/wp-content/uploads/2016/10/640px-ChromVI-oxid.jpg?resize=640%2C480&ssl=1)