What can be a consequence of inadequate ventilation in welding?

Inadequate ventilation during welding can lead to a buildup of harmful fumes and gases that are produced during the welding process, such as metal vapors, ozone, nitrogen oxides, and other toxic elements. When there is insufficient airflow to remove these pollutants, the concentration of harmful substances increases, significantly raising the risk of health issues. This includes symptoms such as dizziness, headaches, nausea, and in severe cases, unconsciousness.

The emphasis on proper ventilation is a key aspect of welding safety practices, as it helps ensure a safe working environment by minimizing exposure to these hazardous elements. Effective ventilation systems, such as local exhaust ventilation or fume extraction units, are designed to remove pollutants at the source and ensure that the air in the workspace remains safe for workers. Thus, the consequence of inadequate ventilation directly correlates with the increased risk of health problems, which is why this option is considered correct.