Potassium could build up to dangerous levels in your body.

If power still surged above dangerous levels, it would be cut again for an hour.

This makes your blood pressure rise, perhaps to dangerous levels.

What would be considered a dangerous level to small children?

In the past, a coach would have used this moment to push his players hard, perhaps to a dangerous level.

If you have high blood pressure to begin with, it can rise to dangerous levels.

The wind brought the chill factor down to dangerous levels.

There are no dangerous levels of asbestos in the air.

The heart rate slows and the blood pressure can drop to dangerous levels.

The only way to know if you're living with dangerous levels is to test your house or office for it.