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Trees reveal the evolution of environmental pollution
- September 18, 2018
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Chemical analysis of tipuana tree rings and bark by Brazilian researchers shows falling levels of heavy metal pollution in the air of São Paulo City, Southern Hemisphere's largest metropolis.
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"Trees reveal the evolution of environmental pollution", MachPrinciple, September 18, 2018, https://machprinciple.com/post/Trees-reveal-the-evolution-of-environmental-pollution
