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Lead-sheathed telecom cables and historic leaded gasoline emissions substantially raise environmental lead levels in Portland, Oregon

Environmental Studies and Forestry

Lead-sheathed telecom cables and historic leaded gasoline emissions substantially raise environmental lead levels in Portland, Oregon

A. E. Shiel, S. Jovan, et al.

Discover how urban moss in Portland, Oregon reveals the hidden legacy of lead contamination linked to old infrastructures and past practices. This research by Alyssa E. Shiel, Sarah Jovan, and Christina J. Murphy uncovers the lasting effects of leaded gasoline and relic telecommunication cables on our environment. Further insights are needed to understand human exposure risks.

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Playback language: English
Abstract
This high-resolution study of lead in urban moss (*Orthotrichum lyellii*) in Portland, Oregon reveals heterogeneous lead distributions linked to neighborhood age and lead sources. Leaded gasoline remains a persistent source, even decades after its phase-out. The highest lead levels are associated with relic lead-sheathed telecommunication cables, highlighting their significant contribution to environmental lead contamination. Further research is needed to quantify the impact of these cables on human exposure.
Publisher
Communications Earth & Environment
Published On
Jul 23, 2024
Authors
Alyssa E. Shiel, Sarah Jovan, Christina J. Murphy
Tags
lead contamination
urban moss
leaded gasoline
telecommunication cables
environmental health
Portland
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