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ODEQ Nephelometer Network
ODEQ (19)
LRAPA (5)
Forest Health (9)
Field Burning (3)
Visibility (4)
Asotin, WA
Laboratory
Neph Service Frequencies
• Routine Service – once a week– Zero check
– Cal check
– Check zero filter, chart, air flow, datalogger
• QA Review – once a month• Calibration – every 3 months (SUVA 134A)• Cleaning – every 6 months• Data Validation – within one month
Laboratory
KFP Neph vs PM2.5Jan 2005
y = 18.751x - 3.6641
R2 = 0.9982
0
10
20
30
40
50
60
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00
Bscat
FRM
PM
2.5
(ug/
m3)
Laboratory
KFP Neph vs PM2.52004
y = 17.582x - 2.0537
R2 = 0.9848
0
10
20
30
40
50
60
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00
Bscat
FRM
PM
2.5
(ug/
m3)
Laboratory
Klamath Falls PM2.5 vs NephWinter values Oct - May
y = 18.354x - 2.4182
R2 = 0.987
0
10
20
30
40
50
60
70
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00
Neph (bscat)
FRM
PM
2.5
(ug/
m3)
Laboratory
SE PDX Neph vs PM2.51/1/04 to 12/31/04 y = 17.659x - 2.6137
R2 = 0.9731
0
10
20
30
40
50
60
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2
Neph (Bscat)
PM
2.5
(u
g/m
3)
Laboratory
SE PDX Neph vs PM2.51/1/04 to 12/31/04 y = 17.659x - 2.6137
R2 = 0.9731
0
10
20
30
40
50
60
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2
Neph (Bscat)
PM
2.5
(ug
/m3)
Laboratory
WDOE vs DEQ NephSept 2004, Sauvie Island y = 1.1511x + 0.2498
R2 = 0.9924
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
WDOE
DE
Q
Laboratory
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Server & ENVIEW database
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