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Air quality in Southland: Invercargill Urban Airshed

Invercargill Airshed

Invercargill Airshed

Invercargill Airshed PM₁₀ Exceedences

Invercargill Airshed PM10 Exceedences

Note: The NES targets for this airshed are provisional.

Source data for PM₁₀ - Invercargill
Year	2005	2006	2007	2008	2009	2010
Method	FH62 BAM	FH62 BAM	FH62 BAM	FH62 BAM	FH62 BAM	BAM data (adjusted)
Valid data (%)	64%	67%	99%	96%	77%	99%
No of exceedences PM10	10	1	2	9	5	35
99.7%ile value		52	54	94	75	95
Highest 24-hr average	198	56	63	110	78	96
Annual average	<75% valid data	<75% valid data	14	14	17	24

Source: Environment Southland

Last updated: 2 August 2011