If, as was assumed, the Moon did not have any kind of bow shock and limited atmosphere then "daytime" measurements would mostly correlate with the undisturbed solar wind.

[3] It was feared that the Lunar Module could release enough gas from its engine exhaust to constitute 5% of the entire potential atmosphere of the Moon and contaminate any results from the experiment.

The goal of the experiment was to provide mass per unit charge spectra of the positive ions present near the Moon's surface.

[7] The authors of the original study did later revisit and postulate that there were other possible sources and mechanisms for the entrainment and release of water vapour from Apollo 14's ascent stage.

[11][12] A 2008 study of lunar rock samples revealed evidence of water molecules trapped in volcanic glass beads.