What is the primary risk of not using proper dive tables?

The primary risk of not using proper dive tables lies in the increased likelihood of decompression sickness. Dive tables are designed to help divers understand the limits of their exposure to pressure while underwater, ensuring safe ascents and providing guidelines on how long they can stay at certain depths. Without adhering to these tables, divers may not ascend slowly enough or may exceed safe time limits at specific depths, leading to the formation of nitrogen bubbles in the bloodstream upon ascending to the surface. This condition, known as decompression sickness, can cause serious health issues, including joint pain, dizziness, and even life-threatening complications. Therefore, using proper dive tables is essential for managing nitrogen absorption and ensuring safe diving practices.