Construction Skills Certification Scheme (CSCS) Practice Test

How is occupational asthma commonly caused?

1. Inhaling construction dust

2. Excessive loud noise

3. Working in damp environments

4. Exposure to sharp tools

The correct answer is: Inhaling construction dust

Occupational asthma is commonly caused by inhaling substances that can irritate the airways, and construction dust is a significant factor in this. When workers are exposed to various types of dust, such as wood dust, silica, or other particulate matter found on construction sites, the inhalation can lead to chronic inflammation of the airways and trigger asthma symptoms. Inhaled irritants directly impact lung function, leading to bronchoconstriction and increased mucus production, which are typical responses in individuals predisposed to asthma. Over time, consistent exposure to construction dust can result in the development of hypersensitivity in the airways, making it difficult for affected individuals to breathe comfortably, especially during physical exertion. While the other listed options pose health risks within construction environments, they are less directly linked to the specific development of occupational asthma. For instance, excessive loud noise can lead to hearing loss rather than respiratory issues, working in damp environments may contribute to mold and mildew-related respiratory problems, and exposure to sharp tools is a safety concern without a direct link to asthma.