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Air quality in the Canterbury region: Kaiapoi Airshed

Kaiapoi Airshed

Kaiapoi Airshed PM₁₀ Exceedences

Kaiapoi Airshed PM10 Exceedences

Note: The NES targets for this airshed are provisional.

Source data for PM₁₀ - Kaiapoi
Year	2005	2006	2007	2008	2009	2010
Method	TEOM (Adjusted)	TEOM & FDMS	TEOM & FDMS	TEOM FDMS	TEOM FDMS	TEOM FDMS
Valid data (%)	99%	99%	100%	91%	98%	88%
No of exceedences PM₁₀	17	28	20	19	23	23
2^nd highest 24 hour average	94	145	90	85	84	94
Highest 24-hr average	152	161	104	86	86	98
Annual average	22	22	19	22	21	21

Source: Environment Canterbury

Note:
(1) The 2009 highest 24-hour average value for this airshed was due to transboundary pollution from the Australian dust storms. The exceedance due to this event has not been included in this table.

Last updated: 2 August 2011