Elizabeth Sturges Corbitt

TL;DR: In this paper, a global 3D simulation with the GEOS-Chem model assuming gas-phase Br to be the sole Hg0 oxidant (Hg + Br model) was conducted and compared to the previous version of the model with OH and ozone as the sole oxidants, and the results showed that the Hg+ Br model is equally capable of reproducing the spatial distribution of TGM and its seasonal cycle at northern mid-latitudes.

TL;DR: In this paper, an empirical gas-particle partitioning relationship log 10(K 1 ) = (10±1)- (2500±300)/T where K = (PBM/PM2.5)/RGM with PBM and RGM in common mixing ratio units, PM 2.5 in µg m 3, and T in K.

TL;DR: In this article, a new mechanism for atmospheric Hg0√√HgII redox chemistry in the GEOS-Chem global model and examine the implications for the global atmospheric HOg budget and deposition patterns.

TL;DR: It is found that including this sink in a fully coupled global biogeochemical box model helps to balance the large anthropogenic release of Hg from commercial products recently added to global inventories and implies that legacy anthropogenic Hg can be removed from active environmental cycling on a faster time scale.

TL;DR: In this paper, the authors examined source-receptor relationships for present-day conditions and four 2050 IPCC scenarios encompassing a range of economic development and environmental regulation projections, and used the GEOS-Chem global model to track mercury from its point of emission through rapid cycling in surface ocean and land reservoirs to its accumulation in longer lived ocean and soil pools.