Indoor Air

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Carbon Dioxide in Indoor Air

A Public Health Inspector calls about an issue flagged at an older elementary school.  As part of a teacher complaint process, the provincial health and safety agency has been conducting a workplace…
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Contaminants in black market cannabis: consumers need answers

Legalization of cannabis in 2018 was intended, among other things, to cut off funding to organized crime by removing revenue streams from the sale of illicit cannabis. Public health broadly supported…
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Cooling Tower Registries and Building Water Management Plans: Strategies to combat Legionnaires’ Disease

There’s something in the aerosols Devices that aerosolize water can increase the risk of exposure to Legionella bacteria through inhalation, leading to serious illness such as Legionnaires’ disease…
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Growing at Home: Health and Safety Concerns for Personal Cannabis Cultivation

Personal cultivation as described by the proposed Cannabis Act (2017) will permit adults to cultivate up to four cannabis plants per household. This provision is intended to both promote equity by…
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Guide for Implementing the Carbon Monoxide Monitoring and Response Framework in Long-term Care Facilities

This guide is intended for public health practitioners, facility/property maintenance managers, risk managers, occupational hygienists, clinicians, or other persons working at long-term care…
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Health Effects from Mould Exposure in Indoor Environments - revised

Moulds are naturally occurring and widespread in the environment; therefore, it is not possible to eliminate exposure. Sufficient evidence exists to conclude that exposure to mould in indoor…
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March 2018 Environmental Health Research Scan

Full Scan The attached PDF version of the Research Scan has over 100 references and is broken into over 30 categories.Editor’s PicksAfter searching through the dozens of articles referenced in the…
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Mould Assessment Recommendations - revised

Excessive dampness and mould growth on building material surfaces and contents can pose health risks and should not be tolerated in indoor environments. A mould assessment determines if mould is…
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Mould Remediation Recommendations - revised

Excessive dampness and mould growth on building material surfaces and contents can pose health risks and should not be tolerated in indoor environments. The main goal of remediation is to reduce the…
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NCCEH Mould Investigation Toolkit

Public Health Inspectors (PHIs) and Environmental Health Officers (EHOs) across Canada have different responsibilities, policies, and guidelines when it comes to investigating public inquiries about…
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Pepper Spray in the Indoor Environment and in the Vicinity of Food Products and Preparation Surfaces

Pepper spray is discharged during an attempted robbery of a jewellery store in a large urban mall.  The robbery site is located next to the mall’s food court.  For several days, mall patrons continue…
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Recommendations for Safe Re-occupancy of Marijuana Grow Operations

The following guide offers a practical approach to achieving safe re-occupancy of former marijuana grow operations (MGOs) and reviews possible exposures/hazards (tables 1 and 2). It is essential to…
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Residential Indoor Radon Testing

Radon is a known carcinogen, and is estimated to cause up to 10% of all lung cancers in Canada. It is a radioactive gas that is produced by the decay of uranium. Radon is naturally occurring, and…
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Residential Use of Wood-Burning Appliances in Canada

This report summarizes information on woodsmoke emissions and health effects associated with woodsmoke exposures from residential wood-burning (RWB) in Canada and provides a qualitative indication of…
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