Humber/Ontario Real Estate Course 3 Exam Practice

Lead is considered a hazardous substance under the Occupational Health and Safety Act due to its toxic properties and the serious health risks associated with exposure. Lead can lead to a variety of health issues, including neurological damage and developmental delays in children, making it a critical substance for regulation and safe handling.

Mould, radon, asbestos, and UFFI are also hazardous substances, as each has its own associated health risks, such as respiratory problems and carcinogenic effects. Flg0925, however, does not refer to a known hazardous substance and therefore would not be considered in this context. Understanding the implications of each of these substances is vital for ensuring safety and compliance within workplaces and residential areas.