Welcome to ALARA!

ALARA Industrial Hygiene Services Ltd. is a Canadian occupational hygiene consulting company that offered a comprehensive range of consulting services in occupational and environmental health and safety from 1989 to 2018. Services offered included occupational air sampling, noise exposure evaluation, indoor air quality assessments, investigations of mold and other microbial agents, workplace risk assessments, worker training and professional development courses for occupational health professionals.

In 2018 we retired from active occupational hygiene consulting.  We continue to offer consulting services by telephone and email but no longer do in-plant investigations. We have decided to shift the focus of ALARA toward providing educational material and online services on a not-for-profit basis.  By concentrating on an online model of information delivery we anticipate being able to offer informational assistance world-wide. This is frankly an experiment. We do not know if we can do anything meaningful with the information and material resources at our disposal, but we are reluctant to discard these resources when we know that there is a strong need for them in workplaces here in Canada and around the world.


Our goal as consultants has always been to work with our clients to protect the health of their workers, the natural environment, and the community from hazards arising from the workplace.

We hope to do this through assisting other occupational hygiene and safety professionals around the world, who lack our resources for recognition and evaluation of workplace hazards and the recommendation of appropriate control procedures to improve worker well-being and productivity.

ALARA is an acronym for “As Low As Reasonably Achievable”. This is a philosophy first promoted by health physicists regarding the reduction of exposures to ionizing radiation. Occupational hygienists later appropriated the concept for application to all workplace hazards, be they chemical, physical or biological. The ALARA principle recognizes that although it may not be possible to reduce exposures to zero, efforts should be made to reduce workplace exposures as much as necessary to limit harm. We originally chose the name ALARA because it reflects our belief that workers should be protected from all hazardous exposures that could lead to disease or impairment.


ALARA Industrial Hygiene Services Ltd. 103 Parkview Hill Crescent, Toronto, ON Canada M4B 1R5, info@alaraihs.com