røyk

Røyk is the Norwegian word for the visible mixture of aerosols and gases produced by combustion. It occurs when materials burn, such as tobacco, wood, or fossil fuels, and can arise from fires in both natural and man-made settings. The term is used to describe both the plume from a fire and the smoke generated by smoking tobacco products.

Common sources of røyk include tobacco smoke, wood smoke from fireplaces and stoves, and emissions from industrial processes and vehicles. The composition of røyk varies with the fuel and conditions of combustion but typically includes fine particulate matter (PM2.5 and PM10), carbon monoxide, nitrogen oxides, volatile organic compounds, and polycyclic aromatic hydrocarbons. These components contribute to irritation of the eyes and airways and can have broader health and environmental impacts.

Health effects are a major concern with røyk exposure. Inhalation of røyk can cause acute symptoms such as coughing and throat irritation, and long-term exposure is associated with respiratory and cardiovascular diseases, lung cancer, and other serious health problems. Passive or secondhand røyk exposure can affect bystanders, including children and vulnerable adults.

Regulation and public policy surrounding røyk focus on reducing exposure, especially in indoor spaces. Many countries, including Norway, restrict or prohibit indoor smoking in workplaces and public areas and require health warnings on tobacco products. Public health guidance emphasizes minimizing røyk exposure and promoting smoke-free environments.