The 4,340 workplace fatalities recorded in 2009 was the smallest total since the Bureau of Labor Statistics first began tracking the data in 1992. It's the second straight year that fatal work injuries have reached a historic low, following a 10 percent drop in 2008.
High unemployment and layoffs in more dangerous industries like construction played a major role in the decrease, the agency said. The construction unemployment rate is 17.3 percent, nearly double the overall jobless rate of 9.5 percent.
Workers on average logged 6 percent fewer hours last year than in 2008. Employees in construction worked 17 percent fewer hours in 2009 than the previous year.
Workplace suicides declined by 10 percent to 237 after reaching a historic high in 2008. But that count is still the second highest total recorded since the agency began tracking workplace deaths.
One of the few sectors where the fatality rate increased was in building and grounds maintenance, where the number of deaths rose 6 percent.
The report is based on preliminary numbers that could change once the final report is released next year.
In other findings:
- Transportation incidents, which accounted for nearly 40 percent of all work fatalities last year, fell 21 percent from 2008.
- Fatalities among black workers declined 24 percent. Black employees also saw a larger decline in the number of hours worked than white or Hispanic workers.
- Workplace homicides declined 1 percent to 521 cases. That is nearly half the all-time high of 1,080 homicides recorded in 1994.