Mercury levels in the atmosphere have decreased throughout the 21st century (IMAGE)

American Chemical Society

Mercury levels in the atmosphere have decreased throughout the 21st century

Caption

This plant (left), found along the slopes of Mount Everest, grows in individual layers (right) that have been used to understand how atmospheric mercury levels have changed in the past 40 years.

Credit

Adapted from ACS ES&T Air 2025, DOI:10.1021/acsestair.4c00296 (left) and Yindong Tong (right)

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