Figure 3.1: PM10 particulate levels and emissions in main centres of population
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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
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 |
