You are here

Biological Agents

Document

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 present, but does not determine or estimate mould exposure. Health-based exposure limits for indoor mould in residential environments have not been established; inspecting for visible and hidden mould,...

View Full Article

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 risk of exposure to mould and to prevent structural damage; the underlying cause of dampness must be identified and eliminated or mould will reappear. Effective mould remediation requires the physical...

View Full Article

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 environments is associated with asthma and asthma-like symptoms (in asthmatic people), upper respiratory tract symptoms, cough and wheeze, and hypersensitivity pneumonitis in susceptible people. There is...

View Full Article

April 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 Picks After searching through the dozens of articles referenced in the scan, our librarian picks the ones she feels may be especially interesting to our stakeholders.  Her “Editor Picks” for April 2018 include: The built environment: Understanding how physical...

View Full Article

February 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 Picks After searching through the dozens of articles referenced in the scan, our librarian picks the ones she feels may be especially interesting to our stakeholders.  Her “Editor Picks” for February 2018 include: A review of the experimental evidence on the...

View Full Article

January 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 Picks After searching through the dozens of articles referenced in the scan, our librarian picks the ones she feels may be especially interesting to our stakeholders.  Her “Editor Picks” for January 2018 include: Adverse effects after medical, commercial, or self-...

View Full Article

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 facilitating access to legal cannabis, particularly when retail outlets are difficult to access, and to undercut the black market. However, indoor cultivation and processing of cannabis may also...

View Full Article

Irrigating Food Crops with Water Containing Cyanobacteria Blooms

Primary inquiry: Small horticulture growers have been watering their crops with surface water containing a cyanobacterial bloom, before selling their crops at local markets. Can irrigation of food crops using surface water affected by cyanobacteria blooms result in bioaccumulation of cyanotoxins in these crops? Can cyanotoxins bioaccumulate to a concentration that might cause a public health...

View Full Article

Cyanobacteria in Freshwater

What are cyanobacteria? Are cyanoblooms preventable? Who is at risk and how does exposure occur? Is there testing for cyanotoxins? This NCCEH document provides a brief outline of these key questions related to cyanobacteria and the toxins they produce.

View Full Article

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 mould in indoor environments. Some PHIs/EHOs conduct initial walkthroughs only, some conduct comprehensive investigations, and others educate the public about next steps without conducting any field...

View Full Article

Paralytic Shellfish Poisoning

Trigger for Investigation On June 18, 2010 a commercial harvester advised an inspection specialist at CFIA of four cases of suspect PSP-related illness that occurred June 17, 2010. CFIA began an investigation and trace-back and advised relevant public health authorities of illnesses to ensure follow-up of cases. You are the epidemiologist working at the local health authority where the cases...

View Full Article

Workshops Presentations