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Table 3.2: Summary of PM10 concentrations at Auckland residential ambient monitoring sites
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| Area | 24-hour maximum | 24-hour 99.5 percentile | Annual average | % days monitored | Days > 50 µgm-3 | % of winter days guideline was exceeded |
|---|---|---|---|---|---|---|
|
Takapuna 1997 |
50 |
48 |
19 |
15% |
1 measured |
5% |
|
Takapuna 1998 |
38 |
37 |
15 |
15% |
0 |
0 |
|
Takapuna 1999 |
39 |
36 |
n/a |
13% |
0 |
0 |
|
Takapuna 2000 |
30 |
30 |
14 |
17% |
0 |
0 |
|
Takapuna 1995 (TEOM) |
39 |
36 |
17 |
56% |
0 |
0 |
|
Takapuna 1996 (TEOM) |
32 |
30 |
17 |
40% |
0 |
0 |
|
Takapuna 1997 (TEOM) |
47 |
40 |
18 |
93% |
0 |
0 |
|
Takapuna 1998 (TEOM) |
37 |
34 |
18 |
100% |
0 |
0 |
|
Takapuna 1999 (TEOM) |
46 |
41 |
17 |
63% |
0 |
0 |
|
Mt Eden 1997 |
42 |
41 |
n/a |
11% |
0 |
0 |
|
Mt Eden 1998 |
40 |
39 |
21 |
17% |
0 |
0 |
|
Mt Eden 1999 |
46 |
45 |
20 |
16% |
0 |
0 |
|
Mt Eden 2000 |
43 |
42 |
18 |
16% |
0 |
0 |
|
Henderson 1998 (partisol) |
33 |
33 |
n/a |
7% |
0 |
0 |
|
Henderson 1999 (partisol) |
55 |
53 |
21 |
15% |
1 measured |
5% |
|
Henderson 2000 (partisol) |
38 |
37 |
17 |
16% |
0 |
0 |
|
Penrose 1994 |
101 |
95 |
24 |
10% |
3 measured 23 equivalent |
19% |
|
Penrose 1995 |
77 |
69 |
25 |
17% |
2 measured 12 equivalent |
10% |
|
Penrose 1996 |
48 |
47 |
25 |
15% |
0 |
0 |
|
Penrose 1997 |
66 |
65 |
25 |
15% |
3 measured 18 equivalent |
15% |
|
Penrose 1998 |
48 |
46 |
24 |
16% |
0 |
0 |
|
Penrose 1999 |
81 |
73 |
24 |
16% |
2 measured 12 equivalent |
10% |
|
Penrose 2000 |
57 |
53 |
19 |
16% |
1 measured 6 equivalent |
5% |
|
Penrose 2001 |
72 |
64 |
18 |
27% |
2 measured 7 equivalent |
5% |
|
Khyber Pass 1998 |
121 |
104 |
30 |
14% |
2 measured 12 equivalent |
10% |
|
Khyber Pass 1999 |
62 |
58 |
21 |
16% |
1 measured 6 equivalent |
5% |
|
Khyber Pass 2000 |
95 |
83 |
28 |
15% |
2 measured 13 equivalent |
11% |
|
Khyber Pass 2001 |
69 |
58 |
23 |
23% |
1 measured 3 equivalent |
3% |
Note: Guideline value exceedences are highlighted in bold.
* This is an estimate of the number of days PM10 concentrations may have exceeded the guideline value if monitoring had been carried out on all days during winter (May to August inclusive). It is extrapolated from the number of measured exceedences and the number of days when monitoring did occur.
