The global Maritime fleet

In 2017, the global maritime fleet accounted for 107,749 sea vessels of various sizes and carrying capacity. These vessels consumed 361.117 million tonnes of heavy fuel oil.⁸

Table 2 was used to calculate the pollutant emissions of pollutants from ship power plants.

Below are the total emissions from the global marine fleet:

a) carbon dioxide (СО₂) → 361,117,000 * 1.49 = 538 million tonnes;

b) carbon monoxide (CO) → 361,117,000 * 0.9 = 325 million tonnes;

c) hydrogen sulphide (H₂S, in terms of SO₂) → 361,117,000 * 0.001 = 0.36 million tonnes;

d) sulphur oxide (SO₂) → 361,117,000 * 0.0345 = 12 million tonnes;

e) nitrogen oxides (NO_x, in terms of NO₂) → 361,117,000 * (6.9 * 10^-3) = 2 million tonnes;

f) soot → 361,117,000 * (30 * 10^-3) = 10.8 million tonnes;

g) hydrocarbons (CH_x) → 361,117,000 * (20 * 10^-3) = 7.2 million tonnes;

h) benzopyrene (C₂OH₁₂) → 361,117,000 * (7.6 * 10^-8) = 0.000027 million tonnes.