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.
Some chemical engineers specialize in a particular process, such as oxidation (a reaction of oxygen with chemicals to make other chemicals) or polymerization (making plastics and resins).
Geological engineers investigate things that are part of or are made to be part of the earth, including roads, mines and quarries, dams, petroleum production, railways, building projects, pipelines, and forestry operations. They engineer clean-up and environmental assessments where pollution occurs.