
Decades of Data Map the Future of Heavy Metal Pollution Control
Researchers in Southwestern China utilized isotope dating and leaching experiments to distinguish natural background levels from human-caused contamination. The data reveals a historical spike in Cadmium and Mercury, peaking in 2009 before a fluctuating decline. High mobility in current soil samples suggests that legacy waste poses a continuing, active threat to the ecosystem.
By Zhao, Shi, Zhu, Li, Liu, Huang, Liu

