That can make the surface hazardous in wet conditions.

Therefore, he said, the crew would have had no reason to believe that they were hazardous in any event.

Some of the more covert missions had been hazardous in the extreme.

Driving will be hazardous in many areas of the Atlantic provinces.

Underground oil spills are most hazardous in areas where the water table lies close to the ground.

Road travel after dark is especially hazardous in all areas of the country.

"The preliminary results in the field are that there is nothing hazardous in the air," he said.

Additionally, conditions were hazardous in some areas outside the towers.

The drop was only a few feet, not hazardous in itself.

Such jobs are among the most hazardous in the city.