Atmospheric deposition of .sup.7Be, .sup.210Pb in Xining, a typical city on the Qinghai-Tibet Plateau, China

First continuous observations of .sup.7Be and .sup.210Pb monthly total depositional fluxes were performed from December 2014 to November 2017 in Xining, a typical city on the Qinghai-Tibet Plateau, China. The depositional fluxes showed a clear seasonal variation, with peak depositional fluxes in sum...

Full description

Saved in:
Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2020-06, Vol.324 (3), p.1141
Main Authors: Hu, Jufang, Sha, Zhanjiang, Wang, Jinlong, Du, Jinzhou, Ma, Yujun
Format: Article
Language:English
Subjects:
Precipitation variability
Troposphere
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:First continuous observations of .sup.7Be and .sup.210Pb monthly total depositional fluxes were performed from December 2014 to November 2017 in Xining, a typical city on the Qinghai-Tibet Plateau, China. The depositional fluxes showed a clear seasonal variation, with peak depositional fluxes in summer for .sup.7Be and in summer or fall for .sup.210Pb, and minimum values in winter for both .sup.7Be and .sup.210Pb. These are ascribed to the seasonal variability in precipitation and the stratosphere-troposphere exchange of atmosphere. The annual depositional fluxes were 1555 Bq m.sup.-2 year.sup.-1 for .sup.7Be and 284 Bq m.sup.-2 year.sup.-1 for .sup.210Pb. The annual volume-weighted activities and depositional fluxes of .sup.7Be increased with altitude.
ISSN:0236-5731
DOI:10.1007/s10967-020-07127-3