During my Wednesday visit to Evonik Degussa's groundbreaking ceremony for its new alkoxide (used as biodiesel catalyst) plant in Mobile, Alabama, they told me about their high-tech wastewater monitoring system - using sea urchins to monitor the site's waste water effluent.According to Evonik, sea urchin bioassay determines the concentration of wastewater versus potential toxicity of a substance by measuring its effect on a living organism such as sea urchins. The company has been using this testing for decades.
