1 research outputs found
Recent Decline of Atmospheric Mercury Recorded by Androsace tapete on the Tibetan Plateau
We combined the mercury passive sampling
method and plant biomonitoring
together to understand the long-term changes of atmospheric mercury
concentrations on the Tibetan Plateau. Through the analysis of leaves
of Androsace tapete that represent
growing periods spanning the past decade, we explored the historical
records of atmospheric mercury from 2006 to 2015. Mercury concentration
was stable in the leaves of Androsace tapete during the period between 2006 and 2009, while a significant decrease
occurred after the year of 2010. The decreasing trend is consistent
with the monitoring data of the ground-based stations in other regions
globally. Despite the potential uncertainties using a passive sampling
method and biomonitoring technique, we suggest that Androsace tapete is a potential biomarker that could
provide reliable and effective historical records of atmospheric mercury
concentrations and offer new perspectives in monitoring mercury and
perhaps other atmospheric pollutants in regions where long-term active
monitoring was missing