Alan D. Griffiths

T-Rex: the transportable radon-222 explorer for environmental or public health studies

We describe the development and testing of a “suitcase sized” 100 L two-filter dual flow-loop radon monitor, weighing ∼18 kg, flow rate ∼5 L min −1 , Rn-222 sensitivity ∼0.02 s −1 ∙(Bq∙m −3 ) −1 , temporal resolution 30-min, and operational range ∼0.3 – 30,000 Bq∙m −3 . Its porta...

Drivers of Atmospheric Volatile Methylated Sulfur Variability Across the Southern Ocean and Antarctic Coast

Abstract. Biogenic volatile methylated sulfur (VMS) gases, dimethyl sulfide (DMS) and methanethiol (MeSH), are major precursors of climate-cooling sulfate aerosol, yet their sources, co-emission and fate remain poorly constrained over the Southern Ocean and Antarctica. In this st...