The goal of any public health emergency is to help as many people as quickly as possible. The COVID-19 pandemic has brought a new dimension to emergency management. Not only has COVID-19 made it…
Topic Pages

Our topic pages introduce the reader to important and emerging environmental public health issues through a curated list of NCCEH and external resources. The most relevant resources have been selected to best guide the search for further information. These lists are not intended to be exhaustive, and the omission of any individual resource does not preclude it from having value.
The transmission of SARS-CoV-2, the virus that causes COVID-19, occurs primarily via direct contact with or respiratory droplets from an infected person. However, there is evidence to suggest that…
Neonicotinoids (also referred to as “neonics”) are insecticides derived from nicotine. They act by binding strongly to nicotinic acetylcholine receptors in the central nervous system of insects,…
Indigenous communities may be disproportionately impacted by a variety of emergencies and disasters, including floods, wildfires, and crude…
Background
Aspects of the built environment, including man-made and natural features, impact human health directly and indirectly through air quality, traffic injuries, and toxic…
Pesticides are chemicals developed to prevent or destroy unwanted species including insects (insecticides) and weeds (herbicides). Organochlorines and organophosphates, developed prior to the…
Carbon monoxide (CO) is an odourless, colourless, and non-irritating gas that is harmful to humans. As a by-product of incomplete combustion, CO is produced by fuel-burning appliances including…
Bed bugs (Cimex lectularius) are small, elusive, and resilient insects that live by feeding on the blood of mammals, including humans. Bed bug infestations have become prominent worldwide…