Title

The spatial distribution of fossil fuel CO₂ traced by Delta C-14 in the leaves of gingko (Ginkgo biloba L.) in Beijing City, China

Authors

Niu, ZC; Zhou, WJ; Zhang, XS; Wang, S; Zhang, DX; Lu, XF; Cheng, P; Wu, SG; Xiong, XH; Du, H; Fu, YC

Abstract

Atmospheric fossil fuel CO₂ (CO_2ff ) information is an important reference for local government to formulate energy-saving and emission reduction in China. The CO_2ff spatial distribution in Beijing City was traced by Delta C-14 in the leaves of gingko (Ginkgo biloba L.) from late March to September in 2009. The Delta C-14 values were in the range of -35.2 +/- 2.8 similar to 15.5 +/- 3.2 parts per thousand (average 3.4 +/- 11.8 parts per thousand), with high values found at suburban sites (average 12.8 +/- 3.1 parts per thousand) and low values at road sites (average -8.4 +/- 18.1 parts per thousand). The CO2ff concentrations varied from 11.6 +/- 3.7 to 32.5 +/- 9.0 ppm, with an average of 16.4 +/- 4.9 ppm. The CO_2ff distribution in Beijing City showed spatial heterogeneity. CO_2ff hotspots were found at road sites resulted from the emission from vehicles, while low CO_2ff concentrations were found at suburban sites because of the less usage of fossil fuels. Additionally, CO_2ff concentrations in the northwest area were generally higher than those in the southeast area due to the disadvantageous topography.

Corresponding author

Niu Zhenchuan

Volume

23

Issue

1

Page

556-562

Pub year

January, 2016

Publication name

Environmental Science and Pollution Research

Details

http://link.springer.com/article/10.1007%2Fs11356-015-5211-2