ABT in diving refers to which of the following?

In diving, ABT stands for Actual Bottom Time. This term refers to the actual duration a diver spends at the bottom of a dive, excluding any ascent or descent times. Understanding Actual Bottom Time is crucial for divers to manage their nitrogen absorption and ensure they adhere to safe diving practices and dive tables.

Knowing the Actual Bottom Time helps divers calculate appropriate no-decompression limits and avoid the risks associated with exceeding these limits, such as decompression sickness. Monitoring this time is essential for planning diving operations, calculating air consumption, and adhering to safety protocols. Recognizing the importance of Actual Bottom Time enables divers to dive safely while maximizing their underwater exploration without compromising their health.