Employers must ensure that workers are protected from the harsh and sometimes
life-threatening effects of chemical exposure. As we have discussed in this
video series it is important to understand what chemicals are present in
the workplace, how they are used and the related exposure risk so appropriate
measures can be taken to protect the health and safety of everyone in your facility.
Once you have recognized and assessed the hazardous substances in
your workplace you can control the hazard. There are three main locations
where you can put controls for a hazard. At the source, along the path and at the worker.
Controls at the source are always preferred. The best approach is to follow
this Hierarchy of Controls. At the source. Eliminate the hazardous chemical if possible.
Consider whether the process can be changed so the chemical is not
required. If not, substitute with a less hazardous chemical. For example a
chemical that comes in a pellet form gives off less inhalable dust than a
powdered form. Install engineering controls such as ventilation and dust
capture systems to remove the contaminant and prevent exposure.
Along the path. Develop and implement safe work practices and procedures to manage
instances when a hazard cannot be isolated or eliminated. For example using
a screen to protect workers from welding flash and sparks, proper grounding and
bonding procedures when dispensing flammable substances and using non
sparking tools to open flammable liquid drums. Implement administrative controls
to further contain the risk. These could include rotating
employees to minimize exposure and scheduling high-risk activities when
fewer workers are present. Develop and implement an education and training
program to ensure employees understand what chemical hazards are in the
workplace and what controls are in place to protect their health and safety.
At the worker. Use personal protective equipment as with any hazard the use of
personal protective equipment or PPE is the last line of defense. It is best used
in combination with the other existing controls however in the case of an emergency
PPE may be the best control available. PPE can include goggles and face shields,
boots, gloves, aprons and respiratory protection like half face masks, full
facepiece respirators or helmet hoods. It is preferable that everyone have their
own equipment, be fit tested to ensure it's suitable for the individual and be
trained on how to use it effectively. Chemicals are everywhere even in the
smallest of workplaces with relatively simple processes. Remember to always read
product labels, refer to safety data sheets and follow safe handling
procedures as outlined by the supplier. By doing so you'll go a long way to
keeping your workers healthy and safe. I'm Ilma Bhunnoo and this has been your
health and safety tip from Workplace Safety & Prevention Services.
For more information visit WSPS.CA