What is a common symptom indicative of exposure to a toxic gas?

Shortness of breath is a common symptom indicative of exposure to toxic gases due to the impact these substances can have on the respiratory system. Many toxic gases can irritate the airways, lung tissues, or disrupt the body's ability to transport oxygen effectively. This disruption can lead to feelings of breathlessness or the sensation of not being able to breathe properly.

While headaches, dizziness, and nausea are also symptoms that can arise from various types of toxic exposures, particularly from different gases or chemicals, shortness of breath is particularly significant as it points directly to an impairment in respiratory function, a critical concern in situations involving toxic gas exposure. Recognizing this symptom can be vital for prompt identification and response to a hazardous situation.