Radiocarbon (14C) Concentration of Local Pollution in Street Trees Located at Intersections

13 March 2018, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

At large intersections, vehicles consume and generate a large amount of fossil fuel. Carbon derived from fossil fuels that do not contain radioactive carbon (14C), i.e., dead carbon, is released in large amounts in the roadside air environment. By means of photosynthesis, street trees along the roadside assimilate both dead carbon, not containing radioactive carbon (14C), and contemporary carbon, which includes radioactive carbon (14C). Therefore, the concentration of radioactive carbon (14C) in leaves of trees growing in heavily polluted environments decreases.

Keywords

radioactive carbon
local pollution
street tree
carbon isotope tracing

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