3.8.1 Description of the region
Figure 22: Population density and topography of Lismore and environs
Place names indicate population centres.
Lismore is on the far north coast of New South Wales, at the foot of the range and 33 kilometres from the coast (see Figure 22
). For the purpose of this plan it has been designated a Type 1 airshed. While the mild winters make less likely significant pollution from wood heating, agricultural burning is a potential source. The population of the urban centre is 28,000 therefore at least one monitoring station is required under clause 14(1) of the AAQ NEPM.
No monitoring has been undertaken in Lismore.
3.8.2 Proposed AAQ NEPM assessment scheme
Clause 14(2) of NEPM allows fewer performance monitoring stations where it can be demonstrated that "pollutant levels are reasonably expected to be consistently lower than the standards mentioned in this Measure". PRC (2000d) sets out criteria which when met provide a basis for determining that there is a reasonable expectation that pollutant concentrations are consistently lower than the standards. These screening procedures will be applied.
The urban centre of Lismore is small, less than six kilometres in radius. Because the production of ozone by photochemical processes takes some hours, it is unlikely that emissions from the region could be retained for a sufficient length of time to generate significantly elevated concentrations. This reasoning is offered in lieu of screening arguments as there are currently no ozone data from regional centres in New South Wales from which to apply the criteria in PRC (2000d). The need for monitoring will be reviewed in light of the results of campaign monitoring at Bathurst, and the results of the CSIRO TAPM modelling consultancy.
Monitoring data from the Sydney CBD site demonstrates that CO arising from motor vehicles in Lismore will be low and the screening criteria are satisfied (section 3.1.2). There may be potential for elevated concentrations of CO arising from the use of solid fuels. No monitoring of CO is proposed in Lismore at this stage. NSW will await the outcome of monitoring of CO in other regional centres such as Kalgoorlie (2001) and Toowoomba (2002) before making a final decision.
Data from the Sydney region allows screening of sulfur dioxide and lead (section 3.1.2). In addition, monitoring data from Newcastle (section 3.2.2) allows screening of nitrogen dioxide. Thus monitoring of these three parameters is not required in this region. There is currently insufficient data within New South Wales to allow screening for ozone.
Lismore is located on the north coast of New South Wales and experiences mild winters. Agricultural burning may generate elevated concentrations of PM10.
Lismore is provisionally classified as Type 1. Campaign monitoring of PM10 is scheduled to commence in January 2004.
Page last updated: 26 February 2011