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Air Quality - Heritage Road Layover - Draft Environmental Project Report

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Study Highlights

map view displaying sensitive receptor location within Study Area of the Project

Sensitive receptors within Study Area of the Project

  • Determines the air quality impacts generated as part of construction and operation of the Project and develops mitigation strategies for any issues
  • Study Area extends 500 m from Project Site and focuses on sensitive receptors within the area, which were residences
  • Considered contaminants include:
    • Particulate matter
    • Criteria air contaminants (nitrogen dioxide, carbon monoxide, sulphur dioxide)
    • Volatile Organic Compounds (VOCs)
    • Odorous contaminants
  • Sources of air pollution in the area include:
    • Traffic on local arterials and railroads
    • Residential, institutional, and commercial heating
    • Transboundary sources
  • Air quality monitoring stations in similar surrounding land uses and close to the Project Site established baseline air concentrations

Potential Effects, Mitigation and Monitoring Measures

Potential Effect 1: Construction related air pollution may pose risks to human health and well-being.

Proposed Mitigation Measures

  • Prior to commencement of construction, develop and implement a detailed Construction Air Quality Management Plan (AQMP).
  • Develop a Communications Protocol and a Complaints Protocol to respond to issues that develop during construction.
  • Dust prevention and control methodologies not limited to:
    • Proper maintenance of equipment and vehicles
    • Minimizing size of active areas on storage piles
    • Usage of non-chemical dust suppressant to reduce dust emissions from temporary unpaved roads or parking lots

Proposed Monitoring Measures

  • Develop and implement Weekly Air Quality Monitoring Plans  that document how air quality monitoring has been conducted and compliance assessed to effectively prevent unacceptable rates of air emissions in accordance with the following guidelines:
  • Monitor placement should generally follow the guidelines provided in the Ministry of the Environment, Conservation and Parks (MECP) Operations Manual for Air Quality Monitoring in Ontario (2018).

Potential Effect 2: Operations related exhaust emissions of diesel powered trains contribute to local and regional air pollution.

Proposed Mitigation Measures

  • A detailed Operations AQMP will be developed and implemented to limit the generation and dispersion of airborne particulate matter, nitrogen oxides and other air contaminants associated with the project operations.
  • Unnecessary train / engine / propulsion system idling will be minimized through technical and operational measures.

Proposed Monitoring Measures

  • On-site inspections will be undertaken to confirm the implementation of the mitigation measures and identify corrective actions if required.
  • Annually, test train propulsion and auxiliary power units, which produces exhaust emissions and ensure that they remain in compliance with applicable emission standards.
  • Develop an Air Sampling and Monitoring Plan and submit an annual report summarizing all sampling and monitoring results accumulated over the preceding year.

Review the full Draft Air Quality Baseline Conditions and Impact Assessment Report.

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