HVO 2009 Annual Environmental Management Report - Final

Coal & Allied – Hunter Valley Operations
TSP Short Term Assessment
No short term (24 hour) impact assessment criteria applies to HVAS TSP monitors.
PM 10 Annual Average Assessment
PM 10 monitors were sampled in accordance with AS 3580.9.6 (2003). The PM 10 impact assessment criterion
was an annual average concentration of 30g/m 3 . During 2009 all HVO PM 10 monitors were below the annual
criterion (Table 20 and Figure 25). The sites showed an increase in dust levels compared with 2008. A
decrease in annual rainfall in 2009 compared with 2008 is likely to have contributed to higher dust levels,
particularly during August and November which typically coincides with hot and dry periods (Figure 26).
Table 20: Annual Average HVAS PM 10 Results 2007 to 2009
Monitor
Annual Assessment
Criteria (g/m3)
Mean (g/m3)
2009 2008 2007
Cheshunt East 30 27.3 21.8 24.2
Maison Dieu 30 23.9 18.5 21.2
Jerrys Plains School 30 19.3 15.8 18.0
Kilburnie Sth 30 17.5 15.0 20.3
Warkworth School 30 26.0 21.9 29.7
Wandewoi 30 17.6 16.6 19.4
Long Point 30 21.7 - -
HVO 2007 to 2009 Annual Average PM 10
35
30
25
PM10 (μg/m 3 )
20
15
10
5
0
Cheshunt East Maison Dieu Jerrys Plains
School
Kilburnie Sth
Warkworth
School
Wandewoi
Long Point
Gauge
PM10 2009 PM10 2008 PM10 2007
Figure 25: Annual Average HVAS PM 10 Results 2007 to 2009
AEMR 2009 65