| 1 | Should I give my child fluoride supplements? | |
| 2 | Everyone can benefit from fluoride, not just children. | |
| 3 | The emissions will escalate as nitrogen trifluoride's use increases. | |
| 4 | The new air conditioner is getting into the air, a small amount of CFCs has been sealed. | |
| 5 | He found that about 563 metric tons of nitrogen trifluoride was emitted in 2006. |
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