London Atmospheric Emissions Inventory (LAEI)

Emissions by Source Type - Westminster

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NO_x

Borough: Westminster
NOx Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	1,138	619	398	261	134
Aviation	0	0	0	0	0
Rail	35	7	4	5	5
River	70	70	35	72	67
Industrial/Commercial Heat/Power	873	858	838	794	719
Industrial Processes	36	33	15	17	14
Construction	122	126	47	22	16
Domestic Heat/Power	67	58	45	37	31
Other	2	1	2	1	1
Total	2,343	1,773	1,384	1,210	988

PM₁₀

Borough: Westminster
PM10 Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	87	67	46	50	42
Aviation	0	0	0	0	0
Rail	1	0	0	0	0
River	2	2	1	2	3
Industrial/Commercial Heat/Power	25	26	26	23	21
Industrial Processes	3	3	1	2	1
Construction	93	92	106	78	66
Commercial Cooking	49	49	49	46	43
Domestic Heat/Power	4	4	4	4	4
Domestic Biomass/Wood Burning	5	5	4	4	4
Domestic Cooking	6	6	6	5	5
Resuspension	41	34	31	32	32
Other	4	4	4	4	4
Total	321	292	278	250	224

PM_2.5

Borough: Westminster
PM2.5 Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	50	34	22	24	20
Aviation	0	0	0	0	0
Rail	0	0	0	0	0
River	2	2	1	2	2
Industrial/Commercial Heat/Power	23	24	24	21	19
Industrial Processes	3	3	1	2	1
Construction	12	11	12	8	7
Commercial Cooking	49	49	49	46	43
Domestic Heat/Power	4	4	4	4	4
Domestic Biomass/Wood Burning	5	5	4	4	4
Domestic Cooking	6	6	6	5	5
Resuspension	2	1	1	1	1
Other	3	3	3	3	3
Total	159	143	127	121	110

CO₂

Borough: Westminster
CO2 Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	282,713	237,874	192,435	178,631	123,690
Aviation	0	0	0	0	0
Rail	5,020	2,097	1,335	1,889	2,004
River	4,282	4,309	3,461	5,731	6,600
Industrial/Commercial Heat/Power	560,212	543,932	533,007	495,650	443,517
Industrial Processes	1,257	1,324	37,946	0	0
Construction	43,293	44,580	20,715	19,874	20,197
Domestic Heat/Power	200,751	204,656	199,097	184,793	167,360
Other	58	58	212	58	58
Total	1,097,587	1,038,831	988,208	886,627	763,426

Note
This summary dashboard is based on the London Atmospheric Emissions Inventory 2022. The charts show emissions from each air pollution source stacked on top of one another, with the total stack height equalling total emissions from all sources across the borough. The numbers in the table are those used to plot the graph and represent, for each year, the amount of pollutant emitted into the atmosphere (in tonnes/year).
- Industrial Processes: includes emissions from Part A1, A2/B processes, and Non-Road Mobile Machinery (NRMM) exhaust on industrial sites.
- Construction: includes emissions from construction dust (PM) and NRMM exhaust on construction sites.

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