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.
Chemical engineers can change the world. Chemical engineers work to improve the quality of people's lives. Most items used by people everyday have needed chemical engineers to produce them. Chemical engineers are helping to end starvation, disease and poverty. They are working to save the environment by developing alternative technologies to combat acid rain, lead pollution and the greenhouse effect.