Black Carbon

Black carbon - the sooty fraction of PM - is a major short-lived climate forcer, particularly damaging when deposited on Arctic ice and snow. The IMO is developing control measures for ships operating in or near the Arctic.

PollutantsShort-lived climate forcer

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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{BC} = m_\text{PM} \cdot f_\text{BC}

Symbol	Meaning	Unit
$m_\text{BC}$	Annual black-carbon mass	t
$m_\text{PM}$	Annual PM mass	t
$f_\text{BC}$	BC fraction of PM by engine type

Source: IMO PPR Sub-Committee; IPCC AR6

In short

Estimate black-carbon emissions from marine engines - BC fraction of PM by engine type, and annual mass.

Learn the theory AR5 GWP100 in maritime emissions accounting