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Review
. 2022 Dec 2;8(1):55.
doi: 10.1038/s41526-022-00244-1.

Overview of lunar dust toxicity risk

Michael Pohlen  1 , Danielle Carroll  2   3   4   5 , G Kim Prisk  2 , Aenor J Sawyer  6   7   8
Affiliations
Review

Overview of lunar dust toxicity risk

Michael Pohlen et al. NPJ Microgravity. .

Abstract

Lunar dust (LD), the component of lunar regolith with particle sizes less than 20 μm, covers the surface of the Moon. Due to its fineness, jagged edges, and electrostatic charge, LD adheres to and coats almost any surface it contacts. As a result, LD poses known risks to the proper functioning of electronic and mechanical equipment on the lunar surface. However, its mechanical irritancy and chemical reactivity may also pose serious health risks to humans by a number of mechanisms. While Apollo astronauts reported mild short-lived respiratory symptoms, the spectrum of health effects associated with high-dose acute exposure or chronic low-dose exposure are not yet well-understood. This paper explores known and potential human risks of exposure to LD which are thought to be important in planning upcoming lunar missions and planetary surface work.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1. Footprint in lunar regolith.
The footstep of Buzz Aldrin compacting fine grains of lunar soil during an Apollo 11 EVA. Copyright © NASA Public Domain.
Fig. 2
Fig. 2. Lunar dust grains.
Scanning electron microscopy images of native lunar dust grains collecting during an Apollo 17 EVA. Copyright © NASA Public Domain.
Fig. 3
Fig. 3. Lunar dust adherent to spacesuit.
Gene Cernan, Apollo 17 commander, is seen with his spacesuit covered in lunar dust following an EVA. Lunar dust can also be seen adhering to the interior of the lunar module. Copyright © NASA Public Domain.
See this image and copyright information in PMC

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