Table 1 pSO4 contributors tracked by CMAQ-STM

From: Cross-regional PM2.5 sulfate transport to the Pearl River delta: dynamics and chemistry

pSO4 contributors

Short terms

Descriptions

Aqueous-phase reactions

SAQ

Total contributions from all aqueous-phase reactions

SAQH2O2

Aqueous-phase oxidation by H2O2 (\({{\rm{H}}}_{2}{{\rm{O}}}_{2}+{\rm{S}}\left({\rm{IV}}\right)\to {\rm{S}}\left({\rm{VI}}\right)+{{\rm{H}}}_{2}{\rm{O}}\))

SAQO3

Aqueous-phase oxidation by O3 (\({{\rm{O}}}_{3}+{\rm{S}}\left({\rm{IV}}\right)\to {\rm{S}}\left({\rm{VI}}\right)+{{\rm{O}}}_{2}\))

SAQFEMN

Aqueous-phase oxidation catalyzed by Fe3+ and Mn2+ (\({{\rm{O}}}_{2}+{\rm{S}}\left({\rm{IV}}\right)\to {\rm{S}}\left({\rm{VI}}\right)\))

SAQMHP

Aqueous-phase oxidation by methyl hydroperoxide (MHP) (\({\rm{MHP}}+{\rm{S}}\left({\rm{IV}}\right)\to {\rm{S}}\left({\rm{VI}}\right))\)

SAQPAA

Aqueous-phase oxidation by peracetic acid (PAA) (\({\rm{PAA}}+{\rm{S}}\left({\rm{IV}}\right)\to {\rm{S}}\left({\rm{VI}}\right))\)

Gas-phase reaction

SGAS

Gas-phase oxidation by OH (\({\rm{OH}}+{{\rm{SO}}}_{2}\to {\rm{S}}\left({\rm{VI}}\right)+{\rm{H}}{{\rm{O}}}_{2}\))

Emission

SEMIS

Direct emissions in the form of pSO4 within d02

Background

SBG

pSO4 sources outside of the d02, or the contributions of initial/boundary conditions in d02 simulations