2021 grain dust explosions show decrease in incidents, result in one death

In the annual report recording nationwide grain dust bin explosions, seven incidents were reported in 2021, down from eight in 2020.

Kingsly Ambrose, Purdue University associate professor of agricultural and biological engineering and author of the report, said that despite the decrease in explosions from the previous year, one fatality and five injuries were reported. The 10-year average for explosions stands at 8.0, down from 8.1 in 2020.

The explosions occurred in one feed mill, one ethanol plant, one grain mill and four grain elevators. The probable ignition sources were identified as one case of a fire, two incidences of smoldering grain,

The dust explosions occurred in six different states, Ambrose said, with two occurring in Minnesota, one in Georgia, one in Idaho, one in Indiana, one in Iowa and one in Oregon. while four cases were from unknown sources. Fuel sources for the explosions were identified as grain dust in five cases, and the remaining two cases were unknown.

“Grain dust acts as a fuel for these explosions, and all it takes is a small spark for ignition to occur,” Ambrose said. “Controlling grain dust can significantly reduce the possibility and severity of explosions. Simple and effective housekeeping is the first line of defense.”

Ambrose said keeping good maintenance of equipment to ensure proper working order and properly training workers are measures to help eliminate grain dust explosions.

Download Report 

Featured Stories

Hunter Foland works with chicks at Purdue ASREC
Why Spring Start was the right beginning

Raised in Greentown, Indiana, a town just east of Kokomo, Hunter Foland grew up surrounded by...

Read More
Ty Hoskins takes measurements from a mesocosm; an FNR alumnus fights a wildfire; a doe stands in snow
FNR Shares Most Read Stories of 2025

2025 was a productive year for Purdue Forestry and Natural Resources across the three land grant...

Read More
Mountain Bluebird taking wing, a migratory species that ranges widely across the western North America.
Research uses radar to expose sky’s organized, living habitat

When people think about habitats on Earth, they likely picture forests, oceans or grasslands. Few...

Read More
Natalie Nenneker poses with apples
Rooted in sustainability: Growing a future in food and farming

For Natalie Nenneker from Wadesville, Indiana, Purdue Agriculture offered the perfect place to...

Read More
person running
Purdue Agriculture athletes honored for academic performance

Two Purdue Agriculture student athletes were named Academic All-Big Ten Honorees for the fall...

Read More
Purdue University's bell tower at the West Lafayette campus with greenery in the foreground.
Purdue welcomes two faculty members for Spring 2026 semester

Camila Nicolli, research assistant professor of mycotoxin fungal biology in the Department of...

Read More