LEHDER Environmental | Senior/Intermediate Air Quality Specialist

Air Quality Specialist – Intermediate/Senior

Formed in 1995, LEHDER Environmental Services is now one of the largest Air Quality Management companies in Canada. At LEHDER we recognize our client’s need to make decisions that provide for operational flexibility while meeting regulatory, economic and social requirements.

The LEHDER team consists of over 40 talented technologists, scientists, engineers, and project managers.  We are looking for an intermediate or senior level industrial air quality specialist with a minimum of 3 - 5 years of air quality experience to join our team in Sarnia.  

Job Description

The successful candidate will join our Industrial Services Group.  Project work will include creating source and emission inventories including calculation development; conducting dispersion modelling for both permitting and incident scenarios; compiling Emission Summary and Dispersion Modelling Reports and ECA Applications; and preparing NPRI/GHG/Toxics Reduction calculations and reports. 


  • Degree or Diploma in Environmental Science, Chemistry, Atmospheric Science, Engineering, Environmental Technology or related field

  • 3+ years of experience in air permitting and emission inventory development

  • Dispersion modelling skills using AERMOD and CalPuff

  • Demonstrated expertise in Excel with emphasis on data analysis, calculation development using a variety of functions, and QA/QC strategies

  • Experience in interpreting and applying regulatory requirements 

  • Strong skills related to technical writing and oral and written communication

 Working At LEHDER

LEHDER’s Head Office is located in Sarnia-Lambton, the perfect place to live, work and play. Home to just over 128,000 residents in southwestern Ontario, Sarnia-Lambton offers the water enthusiast many opportunities including world class yachting, a thriving fishing industry, and beautiful sandy beaches which are characteristic of the area. Even land lovers will appreciate the Blue Water Experience with our spacious parks, variety of festivals, 20 public golf courses and an incredible array of special events throughout the year.(www.liveinlambton.ca). LEHDER's Western Division is based in Edmonton, Alberta.

LEHDER's corporate culture fosters an environment of integrity, respect and enthusiasm.  We offer a flexible work schedule that recognizes a healthy work/life balance and employees have direct access to mentorship.  LEHDER offers a full suite of benefits, including Group RRSP plans, medical and dental insurance, Employee Assistance Program, fitness expense reimbursement, and overtime pay.  

LEHDER is committed to providing accessible employment practices that are in compliance with the Accessibility for Ontarians with Disabilities Act (AODA). Applicants requiring accommodation for disability

during any stage of the recruitment process are encouraged to advise accordingly.

Ways to Apply

  • Email your resume and cover letter to: careers@lehder.com

  • Complete the online application on our careers page: www.lehder.com/careers

  • Please clearly indicate the position for which you are applying.

Applications will be accepted until November 30, 2018.

LEHDER Environmental Services Limited
Suite 210, 704 Mara Street
Point Edward, Ontario
N7V 1X4


We thank all applicants however, only those selected for an interview will be contacted.