1 High altitude: 1,500 to 3,500 metres (4,900 to 11,500 ft) - The onset of physiological effects of diminished inspiratory oxygen pressure (PiO 2) includes decreased exercise performance and increased ventilation (lower arterial PCO 2).
Structural Iron / Steel Worker Salary. (United States). Men make up the majority of Structural Steel Workers in the United States, bringing in about $18.59 per hour. Pay generally varies between $12.81 per hour and $30.32. Unfortunately, some people in this line of work are without benefits â about two-fifths lack coverage. On the flip side, more than half have medical insurance and nearly two in five receive dental plans.
Mechanical engineers in the top 10 percent of earners made an average of $56.52 per hour, or $117,550 per year, while the lowest 10 percent made an average of $23.91 per hour, or $49,730 per year. The median 50 percent of mechanical engineers made about $37.03 per hour, or $77,020 per year.ational Averages. The federal Bureau of Labor Statistics (BLS) reports that the 232,660 mechanical engineers in the U.S. earned an average salary of $38.74 per hour, or about $80,580 per year in 2009.