| mercury level | 1.91 | The EPA says high mercury levels are a public health problem. | ||
| mercury contamination | 1.78 | It found no mercury contamination in the soil and water tests. | ||
| mercury emission | 1.65 | The harm from mercury emissions is still uncertain. | ||
| mercury pollution | 1.12 | There are many sources of mercury pollution, some natural. | ||
| mercury thermometer | 0.86 | In addition, never, never discard a mercury thermometer into the trash. | ||
| mercury content | 0.39 | Several independent tests produced a wide range of toxicity levels, suggesting that its mercury content is not uniform. | ||
| mercury filling | 0.39 | The average American has seven mercury fillings, Ziff said. | ||
| mercury release | 0.33 | The agency said it planned to draft regulations to limit mercury releases from power plants. | ||
| mercury vapor | 0.33 | Ensuing tests determined a high level of mercury vapor escaped when the room was opened. | ||
| mercury exposure | 0.26 | At low levels, mercury exposure can cause emotionally irritability and vision and hearing problems. | ||
| mercury problem | 0.26 | Smallmouth bass show no mercury problem. | ||
| mercury spill | 0.26 | In Barnaul, a mercury spill contaminated a terminal. |