Scientists utilize breath and sweat to detect trapped humans

This article was about a new way of finding human remains under debris of fallen buildings. This is able to happen because “Molecules in their breath, sweat and skin have been used to detect humans in a simulation of a collapsed building, raising the prospect of portable sensors for use in real-life situations.” The sensors placed detect carbon dioxide and ammonia as it leaves the body of the human. When the body is at rest though, the levels of ammonia decrease researchers were not able to identify why this happens. Researchers stated that “The simulations was composed of three separate sections” the environment section which dealt with the environment like the air flow and temperature, the void section where the participant was situated, and the collapsed building section where the debris of the voiding and the materials of the building.

Article here.