London Atmospheric Emissions Inventory (LAEI)

Emissions by Source Type - Harrow

---

NO_x

Borough: Harrow
NOx Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	400	333	252	144	70
Aviation	1	1	1	1	1
Rail	28	26	19	13	14
River	0	0	0	0	0
Industrial/Commercial Heat/Power	90	86	84	80	71
Industrial Processes	29	5	2	2	2
Construction	28	29	14	14	11
Domestic Heat/Power	91	81	61	53	47
Other	6	5	5	5	5
Total	672	566	437	313	220

PM₁₀

Borough: Harrow
PM10 Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	46	46	39	37	30
Aviation	0	0	0	0	0
Rail	1	1	1	0	0
River	0	0	0	0	0
Industrial/Commercial Heat/Power	2	2	2	2	2
Industrial Processes	1	1	0	0	0
Construction	47	56	25	47	44
Commercial Cooking	4	4	4	4	4
Domestic Heat/Power	7	7	6	6	6
Domestic Biomass/Wood Burning	23	23	20	21	20
Domestic Cooking	8	8	8	8	7
Resuspension	19	19	18	19	19
Other	6	6	14	7	7
Total	165	174	138	153	139

PM_2.5

Borough: Harrow
PM2.5 Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	25	24	19	18	15
Aviation	0	0	0	0	0
Rail	1	1	0	0	0
River	0	0	0	0	0
Industrial/Commercial Heat/Power	2	2	2	2	2
Industrial Processes	1	1	0	0	0
Construction	5	6	3	5	5
Commercial Cooking	4	4	4	4	4
Domestic Heat/Power	7	7	6	6	6
Domestic Biomass/Wood Burning	23	23	20	21	20
Domestic Cooking	8	8	8	8	7
Resuspension	1	1	1	1	1
Other	6	6	13	6	6
Total	83	82	77	72	65

CO₂

Borough: Harrow
CO2 Emissions by Source Type
Emissions (Tonnes) from	2016	2019	2022	2025	2030
Road Transport	132,175	135,119	128,390	110,452	75,489
Aviation	237	190	192	190	190
Rail	6,144	5,777	4,178	3,434	3,565
River	0	0	0	0	0
Industrial/Commercial Heat/Power	56,274	53,001	51,791	48,080	42,038
Industrial Processes	16,923	243	250	53	53
Construction	8,321	8,542	5,427	12,152	13,387
Domestic Heat/Power	291,062	300,534	287,633	279,645	258,599
Other	456	465	1,402	465	465
Total	511,593	503,871	479,263	454,472	393,785

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.

---