What is a powder headache, and how can it be avoided?

• A. A headache caused by high noise levels
• B. A headache from NG exposure, minimized by avoiding skin contact
• C. A headache caused by dehydration
• D. A headache from stress and fatigue

Answer: (B)

A powder headache refers specifically to the discomfort or headaches that may arise from exposure to nitrogen gas (NG), particularly in mining and industrial environments where explosives containing ammonium nitrate are used. This type of headache is associated with the inhalation of fumes or contact with materials that release nitrogen dioxide during the detonation process.

To minimize the risk of developing a powder headache, it is crucial to avoid direct skin contact with materials that contain NG, as well as to ensure proper ventilation in work environments to reduce inhalation of harmful gases. Implementing safety measures such as wearing appropriate protective gear and adhering to guidelines for handling these substances significantly decreases the likelihood of exposure.

The other options describe various types of headaches that may occur in a mining setting, but they do not specifically relate to the unique challenges posed by nitrogen gas exposure.