Table 2.5: Summary data for CO monitoring in the Bay of Plenty
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| 1992 |
1993 |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
2001 |
|
|---|---|---|---|---|---|---|---|---|---|---|
|
One-hour average CO concentrations Rotorua (Pereika) |
||||||||||
|
% valid data |
98% |
5% |
89% |
98% |
18% |
98% |
||||
|
Hours > 30 mgm-3 |
0 |
0 |
0 |
0 |
0 |
0 |
||||
|
99.9 %ile mgm-3 |
3.9 |
0.3 |
4.1 |
4.7 |
0.3 |
4.7 |
||||
|
Maximum mgm-3 |
5.8 |
0.4 |
5.7 |
7.1 |
0.3 |
6.7 |
||||
|
Eight-hour average CO concentrations Rotorua (Pereika) |
||||||||||
|
% valid data |
100% |
5% |
91% |
99% |
18% |
99% |
||||
|
Hours > 10 mgm-3 |
0 |
0 |
0 |
0 |
0 |
0 |
||||
|
99.9 %ile mgm-3 |
2.5 |
0.2 |
2.8 |
3.4 |
0.1 |
3.6 |
||||
|
Maximum mgm-3 |
3.2 |
0.2 |
3.6 |
4.0 |
0.1 |
4.6 |
||||
|
One-hour average CO concentrations Tauranga (Otumoetai) |
||||||||||
|
% valid data |
97% |
7% |
67% |
63% |
18% |
87% |
||||
|
Hours > 30 mgm-3 |
0 |
0 |
0 |
0 |
0 |
0 |
||||
|
99.9 %ile mgm-3 |
2.2 |
0.6 |
2.9 |
2.7 |
0.8 |
2.7 |
||||
|
Maximum mgm-3 |
3 |
0.7 |
4 |
3.2 |
1 |
3 |
||||
|
Eight-hour average CO concentrations Tauranga (Otumoetai) |
||||||||||
|
% valid data |
98% |
8% |
69% |
64% |
18% |
89% |
||||
|
Hours > 10 mgm-3 |
0 |
0 |
0 |
0 |
0 |
0 |
||||
|
99.9 %ile mgm-3 |
1.1 |
0.2 |
1.6 |
1.3 |
0.3 |
1.3 |
||||
|
Maximum mgm-3 |
1.4 |
0.2 |
1.8 |
1.4 |
0.3 |
2.0 |
||||
|
One-hour average CO concentrations Tauranga (Marsh) |
||||||||||
|
% valid data |
77% |
96% |
||||||||
|
Hours > 30 mgm-3 |
0 |
0 |
||||||||
|
99.9 %ile mgm-3 |
5.9 |
4.9 |
||||||||
|
Maximum mgm-3 |
9.3 |
6.7 |
||||||||
|
Eight-hour average CO concentrations Tauranga (Marsh) |
||||||||||
|
% valid data |
80% |
97% |
||||||||
|
Hours > 10 mgm-3 |
0 |
0 |
||||||||
|
99.9 %ile mgm-3 |
4.4 |
3.6 |
||||||||
|
Maximum mgm-3 |
4.9 |
4.6 |
||||||||
|
One-hour average CO concentrations Rotorua (Fenton) and Opotiki |
||||||||||
| Opotiki 2002 |
1997 |
1998 |
1999 |
2000 |
||||||
|
% valid data |
74% |
5% |
29% |
58% |
18% |
|||||
|
Hours > 30 mgm-3 |
0 |
0 |
0 |
0 |
0 |
|||||
|
99.9 %ile mgm-3 |
2.1 |
0.3 |
5.8 |
5.5 |
4.1 |
|||||
|
Maximum mgm-3 |
3.6 |
0.4 |
6.4 |
8.3 |
6.2 |
|||||
|
Eight-hour average CO concentrations Rotorua (Fenton) and Opotiki |
||||||||||
|
% valid data |
77% |
5% |
30% |
61% |
18% |
|||||
|
Hours > 10 mgm-3 |
0 |
0 |
0 |
0 |
0 |
|||||
|
99.9 %ile mgm-3 |
1.1 |
0.2 |
3.7 |
4.6 |
2.6 |
|||||
|
Maximum mgm-3 |
1.8 |
0.2 |
4.0 |
5.3 |
2.7 |
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