Environmental issues

Air

Appendix C: Glossary

AGL Above ground level

Agreement The agreement made on 1 May 1992 between the Commonwealth, the States, the Australian Capital Territory, the Northern Territory and the Australian Local Government Association, a copy of which is set out in the Schedule [to the Commonwealth Act]

Air NEPM National Environment Protection Measure for Ambient Air Quality (26 June 1998)

airshed A volume of air confined to a geographic region, and within which pollutants are contained. An area in which air quality is subject to common influences from emissions, meteorology and topog-raphy

ambient air The external air environment (does not include the air environment inside buildings or structures)

CBD Central Business District

CO Carbon monoxide

DOAS Differential Optical Absorption Spectrometry

EPA Environment Protection Authority of New South Wales

Fire management means all activities associated with the management of fire prone land, including the use of fire to meet land management goals and objectives

GRUB Generally representative upper bound (referring to a performance monitoring station, as described in the PRC Guideline Paper.

katabatic Refers to movements of cold air. Katabatic flows drain down a valley, analogous to stormwater flows

monitoring station a facility for measuring the concentration of one or more pollutants in the ambient air in a region or sub-region

NATA  National Association of Testing Authorities

NEPC  National Environment Protection Council

NEPM  National Environment Protection Measure

NEPM  Standards defined in Schedule 2 of the NEPM (refer also to definitions standards contained in Schedule 2).

Pollutant
Averaging period
Maximum concentration
Goal within 10 years maximum allowable exceedences
CO
8 hours
9.0 ppm
1 day a year
NO2
1 hour
1 year
0.12 ppm
0.03 ppm
1 day a year
none
O3
1 hour
4 hours
0.10 ppm
0.08 ppm
1 day a year
1 day a year
SO2
1 hour
1 day
1 year
0.20 ppm
0.08 ppm
0.02 ppm
1 day a year
1 day a year
none
Pb
1 year
0.50 µg/m3
none
PM10
1 day
50 µg/m3
5 days a year

NO  Nitric oxide

NO2  Nitrogen dioxide

NOX  Oxides of nitrogen

NMHC  Non-methane hydrocarbons

O3  Ozone

Pb  Lead

performance monitoring station  a monitoring station used to measure achievement against the goal.

PM10  Particles which have an aerodynamic diameter less than or equal to10 µm

PM2.5  Particles which have an aerodynamic diameter less than or equal to 2.5 µm

PMS  Performance monitoring station, as defined in the Air NEPM

ppm  Parts per million

PRC  Peer Review Committee

region  means an area within a boundary surrounding population centres as determined by the relevant participating jurisdiction

SO2  Sulfur dioxide

sub-region means a populated area within a region whose air quality differs from other areas in the region due to the topography, meteorology and sources of pollutants

TEOM Tapered element oscillating microbalance

TSP Total suspended particulate matter

VOC Volatile organic compounds

µg/m3  Microgram (1 millionth of 1 gram) per cubic metre

Page last updated: 26 February 2011