1.   Nauseating odors wafted from the nearby sewage treatment plant.

2.   A foul odor wafted from narrow alleys where children played near open sewers.

3.   A new odor wafted recently from the MCI Center, the home arena of the Wizards.

4.   Faint odors of decay waft through the air.

5.   The odor of liquor wafted from the rear of the boat.

6.   This means that by the time visitors are ready for brunch, fishy odors have wafted away and are replaced by the tantalizing smell of hot bagels.

7.   When the wind blows or a door opens or a strong odor wafts in, a sneeze is likely to be set off.