def METHOD_NAME(data, x=2):
    """Converting: ugSOx/m3 to  ugS/ m3.
    Parameters
    ------------------
    data: ndarray
        Contains the data in units of ugSoX/m3.
    x: int
        The number of oxygen atoms, O in you desired SOx compound.
    Returns
    ------------
    data : ndarray
        in units of ugS/ m3.
    Notes
    -----------
    micro grams to kilos is 10**6
    """
    mmO = 15.9999  # molar mass oxygen
    mmS = 32.065  # molar mass sulphur
    mm_compound = (mmS + x * mmO) * 10**3  # *10**3 gives molar mass in micrograms
    nr_molecules = mass_to_nr_molecules(data, mm_compound)
    weight_s = nr_molecules_to_mass(nr_molecules, mmS * 10**3)  # weigth in ug
    return weight_s