Table 13.3: Summary data estimates based on the conversion of TEOM data

Area	Maximum	99.5 percentile	Annual average	Days > 50 µgm^-3	% of winter days guideline was exceeded
Takapuna 1997	72	61	28	12 estimated 13 equivalent	11%
Takapuna 1998	56	52	28	6 estimated	5%
Takapuna 1999	70	63	26	6 estimated	5%
Hamilton 1998	49	46	20	0	0
Hamilton 1999	61	58	22	8 estimated	7%
Hamilton 2000	61	46	21	1 estimated	1%
Hamilton 2001	93	73	20	6 estimated 10 equivalent	8%
Te Kuiti 1998	59	59	22	5 estimated	4%
Rotorua 1998	72	56	19	3 estimated	2%
Rotorua 1999	61	49	19	2 estimated	2%
Rotorua 2000	50	44	17	2 estimated	2%
Rotorua 2001	53	51	17	4 estimated	4%
Tauranga 1998	44	40	20	0	0
Tauranga 1999	48	43	19	0	0
Tauranga 2000	40	37	19	0	0
Tauranga 2001	39	32	17	0	0
Lower Hutt 1998	53	44	18	1 estimated	1%
Lower Hutt 2001	42	37	18	0	0
Upper Hutt 2000	72	68	20	6 estimated 7 equivalent	6%
Upper Hutt 2001	85	79	20	10 estimated 15 equivalent	12%
Christchurch 1997	310	251	33	45 estimated 52 equivalent	42%
Christchurch 1998	194	148	26	30 estimated 32 equivalent	26%
Christchurch 1999	201	95	34	43 estimated 44 equivalent	36%
Christchurch 2000	224	168	29	36 estimated 39 equivalent	32%
Christchurch 2001	257	182	32	58 estimated	48%
Timaru 1997	143	106	34	53 measured 57 equivalent	46%
Timaru 1998	104	94	30	42 measured	34%
Timaru 1999	151	108	32	62 estimated	50%
Timaru 2000	156	132	33	60 estimated	49%
Timaru 2001	140	128	32	58 estimated	48%
Ashburton 1999	94	77	25	26 estimated	21%
Ashburton 2000	100	78	25	23 estimated	19%
Rangiora 1999	79	75	21	19 estimated	15%
Rangiora 2000	104	78	20	11 estimated	9%
Kaiapoi 2001	136	122	33	50 estimated	41%

Note: Guideline value exceedences are highlighted in bold.