Which of the following indoor substances is often associated with tobacco smoke?

Tobacco smoke is a complex mixture that contains more than 4700 chemicals, including various harmful substances. This extensive array originates from the combustion of tobacco and can include substances such as nicotine, tar, carbon monoxide, formaldehyde, and various heavy metals. Many of these chemicals are known to be toxic and can lead to significant health issues, including respiratory problems and cancer.

The presence of this vast number of chemicals in tobacco smoke highlights the profound impact it can have on indoor air quality. Since tobacco smoke can linger in the air and settle on surfaces, it contributes to poor indoor environments for both smokers and non-smokers, especially in enclosed spaces.

Understanding the broad range of harmful substances found in tobacco smoke is critical for raising awareness about the risks associated with smoking indoors and the importance of maintaining good indoor air quality.