Workers Health & Safety Centre

USW encourages workers exposed to McIntyre Powder to attend Intake Clinic

USW encourages workers exposed to McIntyre Powder to attend Intake Clinic
Nearly 40 years after workers were deliberately exposed to aluminium powder in Ontario mines, United Steelworkers Union (USW) and others are holding a two-day intake clinic.

The objective of the clinic is to study the health effects of “McIntyre Powder” (named after the mining company that produced it) and seek justice for those affected by the deadly practice of forcing workers to sit in a closed room and inhale the toxic dust.

Information will be gathered on each worker’s health, work history, workplace exposures and memories of their experiences with McIntyre Powder. Organizers hope to gain a better understanding of the health issues suffered by these workers and to link their health problems and their exposure to aluminium dust in the workplace.

When May 11 and 12, 2016 – 8:00 a.m. to 8:00 p.m.
Where Ramada Inn (Ballroom), 1800 Riverside Drive, Timmins, Ontario
Who Gold and uranium miners and mill workers who were exposed to McIntyre Powder aluminium dust, their survivors and/or their legal caregivers.
Registration Contact Janice Martell at 1-800-461-7120, or
Walk-ins welcome, but pre-registration is encouraged.
McIntyre Powder was used between 1943 and 1979 in mines and other industries where workers might be exposed to silica dust. It was thought that if workers inhaled this metal, which was ground to a specific micron size, the powder would protect workers’ lungs.

Many of the workers exposed to the dust have died or are incapacitated with serious respiratory and neurological problems.

USW is collaborating on this project with the Occupational Health Clinic for Ontario Workers (OHCOW), the Office of the Worker Advisor (OWA), the McIntyre Powder Project and the Ontario Public Service Employees Union (OPSEU).

Participation in the clinic is expected to take about three hours. An information table, hosted by the McIntyre Powder Project will include a memorial album for the families of deceased mine workers to contribute stories and photos of their loved ones.
Visitors can also review some historical documents about the McIntyre Powder aluminium dust.

In addition to retired workers still living in the area, it is expected that former miners and survivors will attend from out of province.

For more information contact:

Sylvia Boyce, USW Ontario & Atlantic Health, Safety and Environment Coordinator, 905-741-9830,

WHSC offers a wide range of training programs and resources to help workplace parties understand their legal duties and responsibilities related to workplace hazards including the prevention of toxic exposures. Many of these resources also offer essential insight into the information and tools needed to eliminate or reduce harmful workplace and environmental exposures.
To learn more:
Call:    1-888-869-7950