Overall refinery SO 2 emissions have decreased by 69.3% (to 17.6 kt) since 2000, including an 87.2% decrease in LCP emissions and a 23.6% decrease in process unit SO 2 emissions.
kt Refinery SO 2 Emissions
Refinery SO 2 Emissions
Large Combustion Plants
Process Units
50
40
30
20
10
0
2000
2005
2010
2015
2020
Source: UKPIA
Transport SO 2 Emissions
kt Transport SO 2 Emissions
The transport sector is the second largest emitter of SO 2 emissions. Since 2000, transport sector emissions have decreased by 83.4%, including a 60.5% decrease in emissions in 2020, to 32 kt. In 2020, due to massive reductions in SO 2 emissions from other transport segments, the shipping segment represented 75% of transport SO 2 emissions. Travel restrictions resulted in a reduction in aviation SO 2 emissions by 60.6% in 2020. Road fuels have been “sulphur-free” since 2009 and therefore road transport represents only 0.6% of UK transport SO 2 emissions.
Shipping Road Aviation Railway Other
100 120 140 160 180 200 220
0 20 40 60 80
2000
2005
2010
2015
2020
Source: NAEI
33 | Statistical Review | 2022
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