existing air quality monitoring networks · existing air quality monitoring networks: background...
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www.epa.nsw.gov.auwww.epa.nsw.gov.au
Existing Air Quality Monitoring Networks:
Background
Adam Gilligan, Regional Director North
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www.epa.nsw.gov.au2
NSW EPA
Leader Partner Protector
The NSW Environment Protection Authority protects our environment
and community – our air, waterways, land and health of the community –
by working with communities, government and business.
We hold people and organisations to account through:
Licensing | Monitoring | Regulation | Enforcement
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PARTICLE MATTER - SIZE AND POLLUTION MEASUREMENT EXPLAINED –
EXAMPLE, THE HUNTER REGION.
Particle size is measured
in micrometres or µm.
1 µm = 1 millionth of a
metre
PM2.5 ≤ 2.5 µm diameter
PM10 ≤ 10 µm diameter
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PARTICLE MATTER – WHY SIZE MATTERS
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UPPER HUNTER FINE PARTICLE CHARACTERISATION STUDY
- WHERE PARTICLES COME FROM 1/2
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UPPER HUNTER FINE PARTICLE CHARACTERISATION STUDY
- WHERE PARTICLES COME FROM 2/2
Aerodynamic Particle Diameter, da, m
0.01 0.1 1 10 100
Du
st M
ass,
M, m
g/m
3
0
1
2
3
Diesel Particulate
Mine Dust
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EPA IMPACT ASSESSMENT CRITERIA
PM10 annual = 25 µg/m3
PM10 24 hour = 50 µg/m3
PM2.5 annual = 8 µg/m3
PM2.5 24 hour = 25 µg/m3
TSP annual = 90 µg/m3
Dust deposition annual = 4 g/m3/month
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WHAT IS A WIND ROSE?
❖ Bars indicate the direction from
which the wind blows
❖ Bar length indicate frequency.
The longest bar, shown here
pointing to the south-east,
indicates the wind was most
often from the south-east
❖ Colours indicate wind strength.
Hot pink on the outer edges of
the bars depicts the strongest
wind
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NAMOI AIR QUALITY MONITORING1/3
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NAMOI AIR QUALITY MONITORING2/3
Modelling Domain 1:
Gunnedah to Narrabri
Modelling Domain 2:
Gunnedah to Quirindi
Modelling Domain 3:
Coxs Creek catchment (background)
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NAMOI AIR QUALITY MONITORING3/3
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NAMOI REGION AIR QUALITY – WHAT WE HAVE ALREADY DONE
PLUS INTERIM MEASURES
1. Investigated wind patterns, population and emissions at ‘Todoroski’ and ‘Rambol’
2. Published industry air quality data on:
- Wil-gai (Boggabri)
- Breeza (Curlewis, Caroona)
- Maules Creek
- Werris Creek
3. Publication of Namoi regional air quality review of seasonal results July 2015 to May 2017
4. Data QA/QC processes aligned with those used by OEH for the public monitoring networks
5. Weekly PM10, PM2.5
6. PM10, PM2.5 levels are within EPA guidelines except during bushfires and dust storms
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APPROACH OF THE EPA
Our focus:
Upwind and downwind Mine Monitoring Optimisation, paying particular attention to
measuring emissions. Aiming for continuous PM10 by relying on the network for
receiver monitoring
Our method:
Open, respectful relationship development with stakeholders.
Transparent, honest, timely communication and information provision to facilitate
community-supported network designs
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Questions and comments
Supplied images: John Spencer/EPA