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Air Quality Bulletins

Lowering of SO2 Air Quality Standards

Lowering of SO2 Air Quality Standards On October 27, 2017, the MOECC announced its regulatory proposal to change the sulphur dioxide (SO2) air standards. The new standards would be phased-in over a five year period but the MOECC is considering whether to apply these...

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Recent Airzone News and New Projects

Recent Airzone News and New Projects Airzone has been retained to update air quality regulations for jurisdictions in Canada. This work includes updating of guidance documentation and dispersion modelling assessment tools. Airzone’s CALA-accredited laboratory has...

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Recent News and Projects – 2017

Spring 2017 News and Projects Airzone continues to act as an independent third-party reviewer for the Regional Municipality of Durham for the regulatory source testing of the Durham York Energy Centre. This review includes the auditing of laboratory analyses for key...

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New Lower Formaldehyde Exposure Limits – 2017

New Lower Formaldehyde Exposure Limits - 2017The current occupational exposure limits (OELs) for formaldehyde in Ontario, as provided in O. Reg. 833, includes a short-term exposure level (STEL) of 1 ppm and a ceiling limit of 1.5 ppm. Due to the notice of intended...

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2017 – NPRI Changes to Reporting Requirements

2017-NPRI Changes to Reporting Requirements Modifications to reporting thresholds: The mass threshold for cobalt (and its compounds) has been reduced from 10 tonnes to 50 kilograms, and the concentration threshold has been reduced from 1% to 0.1%. Information for...

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The MOECC has amended O. Reg. 524/98

The MOECC has Amended O. Reg. 524/98 The MOECC has amended O. Reg. 524/98 (commonly known as the Exemption Regulation) which lists all activities that do not require an emissions permit. This has included demolition activities, emissions related to small residences...

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