更多hexavalent例句

1. Georgia’s local public health departments offer a $122 well test that can detect a limited number of toxins, but not hexavalent chromium.
2. Each one contained hexavalent chromium levels between 30 and 140 times higher than drinking-water guidelines in North Carolina, and between 100 and 490 times higher than those in California.
3. On the other hand, Vengosh also has conducted research showing that ash from Wyoming-sourced Powder River Basin coal — the coal that Georgia Power uses at Plant Scherer — contains high levels of hexavalent chromium.
4. The coal ash deposits have heavy concentrations of hexavalent chromium, a carcinogen.