The large number of satellites involved could mean this presents a serious risk. The researchers calculate that large constellations of satellites may cause over 360 metric tons of aluminum oxide compounds to enter the atmosphere per year, which could lead to significant ozone depletion.
Aluminum is one of the most common materials in satellites, and reacts with oxygen upon re-entry in the atmosphere to generate aluminum oxide that can interfere with ozone chemistry. A chlorine activation reaction catalyzed on the surface of aluminum oxide particles boosts ozone depletion.
#low-earth-orbit-satellites #ozone-layer-depletion #aluminum-oxides #satellite-emission-impact #environmental-impact
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