What Does High Hemoglobin Mean? High hemoglobin levels mean that measured hemoglobin levels are above the upper limits of normal for the age and sex of the person (see above normal values). For example, a 19 year old that has a detected hemoglobin level of above 17.7 g/dl would have a high hemoglobin level.
Chemical engineers held about 33,300 jobs in 2012. Chemical engineers work mostly in offices or laboratories. They may spend time at industrial plants, refineries, and other locations, where they monitor or direct operations or solve onsite problems.
Other chemical engineers are employed at refineries and industrial plants, where the engineer is expected to respond in case of an emergency at the plant, which could mean exceeding a 40-hour workweek. Some chemical engineers commonly work 45 to 50 hours a week in a plant or refinery environment. Some chemical engineering jobs call for extensive travel to and from worksites within the U.S and abroad, which can also push the total working hours above full time.