SOₓ from Fuel Sulphur

Sulphur-oxide emissions scale linearly with fuel sulphur content. Check MARPOL Annex VI 0.50 % global cap and 0.10 % SECA compliance, plus annual SOₓ mass.

PollutantsMARPOL VI Reg 14

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

m_{\text{SO}_2} = m_\text{fuel} \cdot 2 \cdot \frac{S\%}{100}

Symbol	Meaning	Unit
$m_{\text{SO}_2}$	SO₂ mass emitted	kg
$m_\text{fuel}$	Fuel mass burned	kg
$S\%$	Fuel sulphur (mass fraction)	%
$2$	S→SO₂ stoichiometric factor (64/32)

Source: MARPOL Annex VI Regulation 14

In short

Compute SO₂ emissions from fuel sulphur content and check global-cap (0.50 %) and SECA (0.10 %) compliance under MARPOL Annex VI Reg 14.

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