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Scottish House Condition Survey: Energy Efficiency And Estimated Emissions From The Scottish Housing Stock - 2003/04

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Table 3: Emissions of nitrogen oxides from dwellings in Scotland: October 2003-September 2004
Weight of emissions per dwelling per year

Lower decile

Lower quartile

Median

Upper quartile

Upper decile

Mean

95% Confidence Interval for mean

Sample size

(kg / year)

(kg / year)

(kg / year)

(kg / year)

(kg / year)

(kg / year)

Lower bound

Upper bound

All dwellings

7

9

11

17

27

15.1

14.7

15.6

3,090

by tenure

Owner-occupier

8

9

12

17

27

15.8

15.2

16.3

2,016

LA/other public

7

8

9

13

27

12.9

12.2

13.7

612

HA/co-op

6

7

10

18

26

13.7

12.6

14.7

258

Private-rented

7

9

13

21

31

16.9

15.1

18.7

204

by household type

Single adult

6

8

11

16

25

13.7

12.8

14.6

418

Small adult

7

8

11

17

26

15.4

14.2

16.6

550

Single parent

7

8

9

16

31

14.1

12.5

15.8

182

Small family

8

9

12

16

25

14.3

13.5

15.1

429

Large family

9

9

13

20

33

17.4

15.7

19.1

229

Large adult

8

10

11

16

25

14.9

13.8

15.9

320

Older smaller

8

9

12

19

33

17.1

15.7

18.5

500

Single pensioner

6

8

11

18

28

14.7

13.6

15.7

462

by banded weekly income

< £100

7

8

11

19

29

16.6

13.8

19.4

188

£100-£200

7

8

10

18

29

15.0

14.1

15.9

622

£200-£300

7

8

11

17

27

14.6

13.7

15.4

606

£300-£400

7

9

10

15

24

13.9

12.9

14.8

429

£400-£500

7

9

11

15

23

13.5

12.6

14.4

365

£500-£700

8

9

12

17

26

15.5

14.3

16.6

426

£700 +

9

12

15

21

31

19.4

17.6

21.2

309

by type of dwelling

Detached houses

10

12

15

21

33

20.3

19.0

21.5

760

Semi-detached houses

8

9

11

15

29

15.2

14.3

16.1

696

Terraced houses

8

9

10

13

27

13.2

12.6

13.9

734

Tenement flats

6

7

9

16

23

12.8

12.1

13.6

516

Other Flats

7

8

9

18

26

13.8

12.8

14.7

384

by age of dwelling

Pre-1919

7

10

15

22

34

19.6

18.1

21.1

555

1919-1944

7

8

10

15

25

13.6

12.6

14.6

414

1945-1964

7

9

11

15

28

14.2

13.5

14.9

742

1965-1982

8

9

11

18

29

15.1

14.3

15.8

843

Post-1982

6

8

11

16

22

13.2

12.5

13.9

536

by central heating and fuel type

Gas central heating

7

8

10

12

17

11.2

10.9

11.4

2,093

Electric central heating

16

19

27

36

50

30.9

29.3

32.6

561

Other central heating

10

12

15

20

26

17.9

16.7

19.2

314

No central heating

12

14

18

25

37

21.6

19.5

23.7

122

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Page updated: Monday, December 18, 2006