Institutional development · Research, innovation and assessment · Brazil
São Paulo trees grew denser wood as pandemic cut pollution, USP report says
A growth-ring analysis reported by the University of São Paulo found signs of lower vehicle emissions and changes in wood density in São Paulo trees exposed to heavy traffic.
Why it matters: The finding concerns trees beside heavy traffic in São Paulo, whose growth rings showed signs of reduced vehicle emissions and changes in wood density.
Jornal da USP, the University of São Paulo's news outlet, reported that trees developed denser wood when pollution fell during the pandemic.
According to the report, an analysis of tree growth rings identified signs that vehicle emissions had decreased.
The report said the trees analysed were exposed to heavy traffic in São Paulo and showed changes in wood density.
Editor’s view
Scott James, Research and Innovation Editor
The University of São Paulo report concerns trees exposed to heavy traffic in São Paulo, whose growth rings showed signs of lower vehicle emissions and denser wood during the pandemic.
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