Notifiable waste is considered hazardous or harmful to the environment.

Most city residents only venture outside after dark since direct sunlight is now considered hazardous to their health.

The prisoners were used for work out in the vacuum that was considered particularly hazardous.

The chemicals are considered extremely hazardous in a concentration of 1,000 parts per million, he said.

These two locations are considered especially hazardous because of the heights involved.

Masks that have the snorkel built in are considered hazardous as well.

Among other measures, the plan will halve the amount of lead considered hazardous in children's blood.

When does a building have enough drug dealing in the hallways to be considered hazardous?

Health specialists found levels of radiation in his nose and hair that are considered very hazardous.

Anything greater than 1 percent asbestos is considered hazardous, she said.