Total sulfate is originated from sea salt, dust, and produced by oxidation of SO2 in the atmosphere.
I would like to know how to calculate the portions of sea-salt sulfate and mineral dust sulfate by using sodium and calcium or magnesium, respectively, as tracers.
in another way, how can I estimate the portion of non-sea salt sulfate?
thanks
Hi Mr. Abdelfettah Benchrif,
You can calculate non-sea salt SO4, K, Ca or Mg by using following equation :
nssCX= CX (aerosol)- {(CX/CNa)sea * (CNa)aerosol}
where: CX (aerosol) is the concentration of the species X (SO4, K, Ca or Mg) in aerosol sample, (CX/CNa)sea is the ratio of the given species X and Na+ in sea water, and (CNa)aerosol is the concentration of Na+ in the aerosol sample.
Please see the attached articles for more info.
https://www.researchgate.net/post/Can_we_calculate_non-sea_salt_fractions_of_ions_such_as_SO4_Cl_Ca_Na_etc_by_taking_Mg_as_a_reference_ion_from_sea
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