Montrose Environmental Group Litd (LEHDER)


Environmental - Consultant


LEHDER Environmental Services is an environmental consulting company focused on providing Excellence in Industrial Air Quality Services. Formed in 1995, LEHDER is now one of the largest Air Quality Management companies in Canada. All Air Quality aspects – source testing, emission inventories, air dispersion modeling, data interpretation and approval applications – are managed internally without outsourcing and partnering.

We provide services to companies in the petroleum and petrochemical sectors, steel industry, glass manufacturing, mining and smelting industries, automotive and associated suppliers, hospitals and health care facilities, government agencies, organic and inorganic chemical manufacturers, food processors, marine transport, pharmaceutical manufacturers and the pulp and paper industry.

Please visit our web pages for further details on the services LEHDER provides:


Ron Regier
Office Manager

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