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Figure 7.6:

PM10 particulate levels and emissions in main centres of population

Return to the point in the document where this figure is located.

Notes:

(1) The size of the pie graphs is proportional to the amount of emissions in each location represented.

(2) A different scale is used on the Christchurch (St Albans) graph.

(3) Dunedin reports on industrial and domestic emissions only and therefore is not shown on the map.

(4) µg/m3 = micrograms per cubic metre.

Data sources: Data compiled from Air and Environmental Services Ltd, 2001; Auckland Regional Council, 2006a; Auckland Regional Council, 2006b; Environment Canterbury, 2004; Environment Canterbury, 2006; Environment Waikato, 2006a; Environment Waikato, 2006b; Greater Wellington Regional Council, 2005; Otago Regional Council, 2005a; Otago Regional Council, 2005b.

Auckland (Takapuna) PM10

Legend for graphs.

Christchurch (St Albans) PM10

Hamilton PM10

Dunedin PM10

Wellington (Upper Hutt) PM10

 

Text description of figure

PM10 particulate levels and emissions by sector

 

Auckland (annual)

Auckland (winter)

Christchurch (winter)

Wellington (winter)

Hamilton (winter)

Emissions

5900 t/yr

29,000kg/day

13700 kg/day

11650 kg/day

2229 kg/day

Sector

Transport

47.00%

27

9.00%

17.00%

11.00%

Domestic

39.00%

64

82.00%

63.00%

72.00%

Industry

14.00%

9

9.00%

16.00%

4.00%

Other

 

 

 

4.00%

13.00%

PM10 particulate levels and emissions in main centres of population

 

Auckland (Takapuna)

Christchurch (St Albans)

Wellington (Upper Hutt)

Hamilton

Dunedin (Albany Street)

Year

24hr max (µg/m3)

Annual average

24hr max (µg/m3)

Annual average

24hr max (µg/m3)

Annual average

24hr max (µg/m3)

Annual average

24hr max (µg/m3)

Annual average

1990

 

 

187

21

 

 

 

 

 

 

1991

 

 

145

24

 

 

 

 

 

 

1992

 

 

171

37

 

 

 

 

 

 

1993

 

 

120

 

 

 

 

 

 

 

1994

 

 

283

 

 

 

 

 

 

 

1995

 

 

191

26

 

 

 

 

 

 

1996

 

 

 

 

 

 

 

 

 

 

1997

50.5

19.2

278

33

 

 

 

 

65

24

1998

38.1

15.4

151

27

 

 

35

15

71

23

1999

39.0

14.9

194

28

 

 

44

15

59

27

2000

30.5

14.1

182

23

 

 

43

15

48

21

2001

62.3

14.1

220

29

50

14

67

16

60

24

2002

42.4

17.4

214

24

49

14

36

16

48

21

2003

49.8

16.6

133

25

34

15

62

15

48

22

2004

59.5

20.4

135

24

49

12

55

17

57

20

2005

51.5

16.9

147

20

23

9

37

16

52

21