Decomposition analysis of the pollution intensities in the case of the United Kingdom

Figures & data

Figure 1. Decomposition of aggregate CO intensity.

Figure 2. Decomposition of aggregate CO₂ intensity.

Figure 3. Decomposition of aggregate NO_x intensity.

Figure 4. Decomposition of aggregate SO₂ intensity.

Table 1. The contribution of each sector to total manufacturing pollution

Economic sector	NACE	SO2 (%)	NOx (%)	CO (%)	CO2 (%)
Food and beverages	15	8.05	11.36	3.81	8.37
Tobacco products	16	0.06	0.08	0.03	0.08
Textiles	17	1.82	1.50	0.69	1.73
Clothing manufacture	18	0.56	0.44	0.18	0.38
Leather, luggage and footwear	19	0.10	0.15	0.07	0.13
Timber	20	0.12	1.80	1.51	0.63
Pulp and paper	21	4.56	3.46	1.54	3.96
Publishing and printing	22	0.16	0.78	0.70	0.67
Coke oven and refined petrol prods	23	26.33	13.85	4.32	18.15
Basic chemicals	24	15.21	10.87	6.65	12.19
Rubber products	25	4.52	3.47	1.33	4.08
Non-metallic minerals	26	16.46	24.53	5.95	14.26
Iron and steel	27	16.11	12.56	56.84	25.22
Fabricated metal products	28	0.55	2.18	1.97	1.68
Machinery and equipment	29	0.89	2.11	1.95	1.56
Office machinery, computers	30	0.11	0.11	0.09	0.10
Electrical machinery and apparatus	31	0.70	0.67	0.37	0.65
Radio, television and comms	32	0.32	0.49	0.25	0.37
Medical, and precision instruments	33	0.17	0.40	0.44	0.31
Motor vehicles and trailers	34	0.80	1.87	1.30	1.65
Other transport equipment	35	1.06	1.10	0.82	1.15
Manufacture of other products	36	1.34	6.23	9.18	2.70

Note: Average contribution over the period examined: for UK (1990–1997).

Table 2. The change in pollution intensity 1990–1997

Economic sector	NACE	SO2/VA (%)	NOx/VA (%)	CO/VA (%)	CO2/VA (%)
Food and beverages	15	−72	−60	−71	−31
Tobacco products	16	−31	−14	−13	21
Textiles	17	−75	−34	−19	−31
Clothing manufacture	18	−95	−77	−55	−66
Leather, luggage and footwear	19	−34	−20	−22	−9
Timber	20	−45	17	15	18
Pulp and paper	21	−82	−41	22	−43
Publishing and printing	22	−124	−54	−23	−28
Coke oven and refined petrol prods.	23	8	1	7	27
Basic chemicals	24	−63	−47	−33	−20
Rubber products	25	−89	−55	−58	−47
Non-metallic minerals	26	−63	−47	−48	−31
Iron and steel	27	−12	−5	−11	1
Fabricated metal products	28	−74	−53	−12	−49
Machinery and equipment	29	−91	−65	−44	−56
Office machinery, computers	30	−67	−72	−92	−62
Electrical machinery and apparatus	31	−74	−72	−15	−72
Radio, television and comms	32	−50	−113	−71	−86
Medical, and precision instruments	33	−106	−72	−29	−79
Motor vehicles and trailers	34	−132	−90	−77	−71
Other transport equipment	35	−18	−6	0	0
Manufacture of other products	36	−148	−103	−101	−102

Notes: Average growth over the period examined: UK (1990–1997). In order to remove the influence of the observations for the first and last years of the sample the percentage change is based on the difference between the average of the first two years and the average of the last two years.

Table 3. The change in physical capital intensity 1990–1997

Economic sector	NACE	PCI change rate (%)
Food and beverages	15	−8.4
Tobacco products	16	60.9
Textiles	17	−12.1
Clothing manufacture	18	−10.5
Leather, luggage and footwear	19	−33.2
Timber	20	−17.8
Pulp and paper	21	−6.7
Publishing and printing	22	−2.1
Coke oven products, refined petroleum products, processing of nuclear fuel	23	41.8
Basic chemicals	24	−6.6
Rubber products	25	6.6
Non-metallic minerals	26	3.8
Iron and steel	27	−16.7
Fabricated metal products	28	−20.3
Machinery and equipment	29	−11.0
Office machinery, computers	30	5.7
Electrical machinery and apparatus	31	−8.1
Radio, television and comms	32	40.9
Medical, precision, optical instruments	33	0.4
Motor vehicles and trailers	34	17.3
Other transport equipment	35	−13.7
Manufacture of other products	36	−3.6

Notes: Average growth over the period examined: UK (1990–1997). In order to remove the influence of the observations for the first and last years of the sample the percentage change is based on the difference between the average of the first two years and the average of the last two years.

Table 4. The change in pollutants–physical capital ratio 1990–1997

Economic sector	NACE	SO2/PC (%)	NOx/PC (%)	CO/PC (%)	CO2/PC (%)
Food and beverages	15	−52	−40	−51	−10
Tobacco products	16	−93	−75	−75	−41
Textiles	17	−51	−10	5	−7
Clothing manufacture	18	−54	−37	−15	−26
Leather, luggage and footwear	19	−19	−5	−6	6
Timber	20	−9	53	52	54
Pulp and paper	21	−55	−13	49	−16
Publishing and printing	22	−89	−19	12	7
Coke oven and refined petrol prods	23	−56	−63	−57	−37
Basic chemicals	24	−36	−20	−6	8
Rubber products	25	−56	−21	−24	−14
Non-metallic minerals	26	−45	−29	−30	−13
Iron and steel	27	5	12	6	18
Fabricated metal products	28	−20	1	42	5
Machinery and equipment	29	−56	−30	−9	−21
Office machinery, computers	30	−57	−61	−82	−52
Electrical machinery and apparatus	31	−38	−36	21	−36
Radio, television and comms	32	−13	−77	−34	−49
Medical, and precision instruments	33	−73	−38	4	−45
Motor vehicles and trailers	34	−83	−41	−28	−22
Other transport equipment	35	−30	−17	−11	−12
Manufacture of other products	36	−64	−19	−17	−18

Notes: Average growth over the period examined: UK (1990–1997). In order to remove the influence of the observations for the first and last years of the sample the percentage change is based on the difference between the average of the first two years and the average of the last two years.