sesaa esterhazy station - november 2014 summary...
TRANSCRIPT
SESAA Esterhazy Station - November 2014 Summary Report
SAAQS: Saskatchewan Ambient Air Quality Standards
0
5
10
15
20NO (ppb)
15
20NO2 (ppb)
0
20
40
60
80O3 (ppb)
45
60PM2.5 (ug/m3)
0
25
50
75
100
1 8 15 22 29
RH (%)
1
4
7
10
13
1 8 15 22 29
Air Quality Health Index (AQHI)
Low Risk
(1 to 3)
Moderate Risk
(4 to 6)
High Risk
(7 to 10)
Very High Risk
(>10)
Conc. Avg. SAAQS Exceed SAAQS Exceed
Unit Conc. Conc. Time Standard Days Conc. Time Standard HoursNO ppb 0.1 100.0% 0.6 Nov-27 - - 2.0 Nov-27 12:00 - -
NO2 ppb 1.2 100.0% 3.7 Nov-27 - - 5.9 Nov-27 09:00 212 0
NOx ppb 1.3 100.0% 4.2 Nov-27 - - 6.1 Nov-27 09:00 - -
O3 ppb 25 100.0% 32 Nov-17 - - 36 Nov-16 15:00 82 0
PM2.5 ug/m3 4 100.0% 9 Nov-2 30 0 21 Nov-02 22:00 - -
24-Hour Records
Maximum
Month Records
Maximum
Pollutants 1-Hour Records
Name Uptime
Page 1 of 2
0%
25%
50%
75%
100%
Instrument Uptime (%)
0
0
5
10
15
20
1 8 15 22 29
NOx (ppb)
0
5
10
15
20NO2 (ppb)
0
0
15
30
45
60PM2.5 (ug/m3)
-40
-20
0
20
40
1 8 15 22 29
Ext. Temp (C)
01 8 15 22 29
Monthly Update*All data has been slope, intercept, and baseline corrected. Data may change after validation process.
*All compliance parameters were within the Saskatchewan Ambient Air Quality Standards.
*All compliance parameters were above 90% operational. There are no operational issues to report.
Page 1 of 2
SESAA Esterhazy Station - November 2014 Summary Report
0%
10%
20%
30%N
E
S
W
Wind Rose
0%
10%
20%
30%N
E
S
W
NO2 Pollutant Rose
0%
10%
20%
30%N
E
S
W
O3 Pollutant Rose
0%
10%
20%
30%N
E
S
W
PM2.5 Pollutant Rose
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
PM2.5 ug/m3
0 ≤ C < 2 2 ≤ C < 4 4 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 30 C ≥ 30
O3 ppb 0 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 40 40 ≤ C < 60 60 ≤ C < 82 C ≥ 82
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
PM2.5 ug/m3
0 ≤ C < 2 2 ≤ C < 4 4 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 30 C ≥ 30
O3 ppb 0 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 40 40 ≤ C < 60 60 ≤ C < 82 C ≥ 82
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
SESAA Glen Ewen Station - November 2014 Summary Report
SAAQS: Saskatchewan Ambient Air Quality Standards
5
10
15
20Wind Spd. (m/s)
8
16
24
32NO (ppb)
20
40
60
80O3 (ppb)
0
25
50
75
100
125
1 8 15 22 29
Fair
(26 to 50)
Poor
(51 to 100)
Very Poor
(>100)
Good
(1 to 25)
Air Quality Index (AQI) - based on NO2, SO2, O3
Conc. Avg. SAAQS Exceed SAAQS Exceed
Unit Conc. Conc. Time Standard Days Conc. Time Standard HoursNO ppb 0.3 100.0% 0.7 Nov-5 - - 6.9 Nov-05 10:00 - -
NO2 ppb 1.9 100.0% 3.8 Nov-14 - - 11.1 Nov-14 19:00 212 0
NOx ppb 2.1 100.0% 4.4 Nov-14 - - 12.0 Nov-05 10:00 - -
SO2 ppb 0.9 100.0% 4.6 Nov-30 57 0 25.5 Nov-24 12:00 172 0
O3 ppb 23 100.0% 32 Nov-17 - - 36 Nov-04 12:00 82 0
H2S ppb 0.2 100.0% 1.0 Nov-14 3.6 0 6 Nov-14 01:00 10.8 0
24-Hour RecordsMaximum
Month RecordsMaximum
Pollutants 1-Hour Records
Name Uptime
Page 1 of 2
0%
25%
50%
75%
100%NO
NO2
NOx
SO2
O3
H2S
WS
WD
ET
Rain
Instrument Uptime (%)
0
1
2
3
4
1 8 15 22 29
Precip. (mm/hr)
0
5
10
0
8
16
0
8
16
24
32NOx (ppb)
0
10
20
30
40
1 8 15 22 29
SO2 (ppb)
0
8
16
24
32NO2 (ppb)
0
20
40
0
25
50
75
100Rel. Humidity (%)
-40
-20
0
20
40
1 8 15 22 29
Ext. Temp (C)
0
5
10
15
20H2S (ppb)
Page 1 of 2
SESAA Glen Ewen Station - November 2014 Summary Report
0%
10%
20%
30%N
E
S
W
Wind Rose
0%
10%
20%
30%N
E
S
W
SO2 Pollutant Rose
0%
10%
20%
30%N
E
S
W
NO2 Pollutant Rose
0%
10%
20%
30%N
E
S
W
H2S Pollutant Rose
0%
10%
20%
30%N
E
S
W
O3 Pollutant Rose
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO2 ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
Monthly Update*All data has been slope, intercept, and baseline corrected. Data may change after validation process.
*All compliance parameters were within the Saskatchewan Ambient Air Quality Standards.
*All compliance parameters are above 90% operational. There are no operational issues to report.
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO2 ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
O3 ppb 0 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 40 40 ≤ C < 60 60 ≤ C < 82 C ≥ 82
H2S ppb 0 ≤ C < 1 1 ≤ C < 3.6 3.6 ≤ C < 5 5 ≤ C < 8 8 ≤ C < 10.8 C ≥ 10.8
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
SESAA Stoughton Station - November 2014 Summary Report
SAAQS: Saskatchewan Ambient Air Quality Standards
0
5
10
15
20Wind Spd. (m/s)
0
25
50
75
100
125
1 8 15 22 29
Fair
(26 to 50)
Poor
(51 to 100)
Very Poor
Good
(1 to 25)
Air Quality Index (AQI) - based on NO2, SO2, PM2.5
0
30
60
90
120NO (ppb)
120 0
3
6
9
12H2S (ppb)
Conc. Avg. SAAQS Exceed SAAQS Exceed
Unit Conc. Conc. Time Standard Days Conc. Time Standard HoursNO ppb 0.7 100.0% 1.3 Nov-1 - - 107.6 Nov-13 14:00 - -
NO2 ppb 2.1 100.0% 4.8 Nov-27 - - 22.3 Nov-13 14:00 212 0
NOx ppb 2.7 100.0% 13.6 Nov-13 - - 129.7 Nov-13 14:00 - -
SO2 ppb 0.4 100.0% 2.2 Nov-1 57 0 6.9 Nov-27 02:00 172 0
H2S ppb 0.2 100.0% 0.7 Nov-14 3.6 0 2.5 Nov-15 00:00 10.8 0
PM2.5 ug/m3 5 100.0% 10 Nov-2 30 0 20 Nov-01 22:00 - -
24-Hour RecordsMaximum
Month RecordsMaximum
Pollutants 1-Hour Records
Name Uptime
Page 1 of 2
0%
25%
50%
75%
100%NO
NO2
NOx
SO2
H2S
PM2.5RH
ET
WS
WD
Rain
Instrument Uptime (%)
0
1
2
3
4
1 8 15 22 29
Accumulated Precip. (mm)
0
5
0
30
0
30
60
90
120NOx (ppb)
0
6
12
18
24
1 8 15 22 29
SO2 (ppb)
0
30
60
90
120NO2 (ppb)
0
25
50
75
100Rel. Humidity (%)
0
10
20
30
40PM2.5 (ug/m3)
-40
-20
0
20
40
1 8 15 22 29
Ext. Temp (ET, C)
0
3
Page 1 of 2
SESAA Stoughton Station - November 2014 Summary Report
0%
10%
20%
30%
40%N
E
S
W
Wind Rose
0%
10%
20%
30%
40%N
E
S
W
SO2 Pollutant Rose
0%
10%
20%
30%
40%N
E
S
W
NO2 Pollutant Rose
0%
10%
20%
30%
40%N
E
S
W
H2S Pollutant Rose
0%
10%
20%
30%
40%N
E
S
W
PM2.5 Pollutant Rose
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO2 ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
S
Monthly Update*All data has been slope, intercept, and baseline corrected. Data may change after validation process.
*All compliance parameters were within the Saskatchewan Ambient Air Quality Standards.
*All compliance parameters are above 90% operational. There are no operational issues to report.
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO2 ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
H2S ppb 0 ≤ C < 1 1 ≤ C < 3.6 3.6 ≤ C < 5 5 ≤ C < 8 8 ≤ C < 10.8 C ≥ 10.8
PM2.5 ug/m3
0 ≤ C < 2 2 ≤ C < 4 4 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 30 C ≥ 30
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
SESAA Wauchope Station - November 2014 Summary Report
SAAQS: Saskatchewan Ambient Air Quality Standards
0%
5%
10%
15%
20%N
EW
Wind Rose
0%
5%
10%
15%
20%N
EW
SO2 Rose
0%
5%
10%
15%
20%N
EW
H2S Rose
0%
5%
10%
15%
20%N
EW
PM2.5 Rose
0
3
6
9
12
1 8 15 22 29
SO2 (ppb)
0
3
6
9
12
1 8 15 22 29
H2S (ppb)
0
10
20
30
40
1 8 15 22 29
PM2.5 (ug/m3)
-40
-20
0
20
40
1 8 15 22 29
Ambient Temp (C)
0
25
50
75
100
1 8 15 22 29
Rel. Humidity(%)
0
1
2
3
4
1 8 15 22 29
Precipitation (mm/hr)
Conc. Avg. SAAQS Exceed SAAQS Exceed
Unit Conc. Conc. Time Objective Days Conc. Time Objective HoursSO2 ppb 0.4 100.0% 2.4 Nov-1 57 0 5.9 Nov-01 02:00 172 0
H2S ppb 0.2 100.0% 0.6 Nov-2 3.6 0 3.0 Nov-02 00:00 10.8 0
PM2.5 ug/m3 5 100.0% 15 Nov-2 30 0 27 Nov-01 19:00 - -
24-Hour RecordsMaximum
Month RecordsMaximum
Pollutants 1-Hour Records
Name Uptime
Page 1 of 1
0%
25%
50%
75%
100%SO2
H2S
PM2.5
RH
ET
WS
WD
Rain
Uptime (%)
0%
5%
E
S
W 0%
5%
E
S
W 0%
5%
E
S
W 0%
5%
E
S
W
Monthly Update
*All data has been slope, intercept, and baseline corrected. Data may change after validation process.
*All compliance parameters were within the Saskatchewan Ambient Air Quality Standards.
*All compliance parameters were greater than 90% operational this month. There are no operational issues to report.
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO2 ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
H2S ppb 0 ≤ C < 1 1 ≤ C < 3.6 3.6 ≤ C < 5 5 ≤ C < 8 8 ≤ C < 10.8 C ≥ 10.8
PM2.5 ug/m3
0 ≤ C < 2 2 ≤ C < 4 4 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 30 C ≥ 30
Color Code for Wind Spd & Pollutant Conc. Class
Page 1 of 1
SESAA Wawota Station - November 2014 Summary Report
SAAQS: Saskatchewan Ambient Air Quality Standards
0
10
20
30
40NO (ppb)
30
40NO2 (ppb)
0
20
40
60
80O3 (ppb)
60
80PM2.5 (ug/m3)
0
25
50
75
100
1 8 15 22 29
RH (%)
1
4
7
10
13
1 8 15 22 29
Air Quality Health Index (AQHI)
Low Risk
(1 to 3)
Moderate Risk
(4 to 6)
High Risk
(7 to 10)
Very High Risk
(>10)
Conc. Avg. SAAQS Exceed SAAQS Exceed
Unit Conc. Conc. Time Objective Days Conc. Time Objective HoursNO ppb 0.4 99.7% 2.5 Nov-13 - - 23.1 Nov-13 10:00 - -
NO2 ppb 1.4 99.7% 2.7 Nov-13 - - 15.2 Nov-13 10:00 212 0
NOx ppb 1.7 99.7% 5.2 Nov-13 - - 38.2 Nov-13 10:00 - -
O3 ppb 26 99.9% 34 Nov-17 - - 38 Nov-16 17:00 82 0
PM2.5 ug/m3 4 99.9% 10 Nov-2 30 0 58 Nov-01 20:00 - -
24-Hour Records
Maximum
Month Records
Maximum
Pollutants 1-Hour Records
Name Uptime
Page 1 of 2
0%
25%
50%
75%
100%
Instrument Uptime (%)
0
0
10
20
30
40
1 8 15 22 29
NOx (ppb)
0
10
20
30
40NO2 (ppb)
0
0
20
40
60
80PM2.5 (ug/m3)
-40
-20
0
20
40
1 8 15 22 29
Ext. Temp (C)
01 8 15 22 29
Monthly Update*All data has been slope, intercept, and baseline corrected. Data may change after validation process.
*All compliance parameters were within the Saskatchewan Ambient Air Quality Standards.
*All compliance parameters were greater than 90% operational.
*Operational issues include 2 hours of NO/NO2/NOx data, and 1 hour of data for all other parameters, flagged as "power failure" on Nov 4.
NO/NO2/NOx is slower to recover following power disruptions.
Page 1 of 2
SESAA Wawota Station - November 2014 Summary Report
0%
10%
20%
30%
40%N
E
S
W
Wind Rose
0%
10%
20%
30%
40%N
E
S
W
NO2 Pollutant Rose
0%
10%
20%
30%
40%N
E
S
W
O3 Pollutant Rose
0%
10%
20%
30%
40%N
E
S
W
PM2.5 Pollutant Rose
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
O3 ppb 0 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 40 40 ≤ C < 60 60 ≤ C < 82 C ≥ 82
PM2.5 ug/m3
0 ≤ C < 2 2 ≤ C < 4 4 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 30 C ≥ 30
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
S
Page 2 of 2
SESAA Weyburn Station - November 2014 Summary Report
SAAQS: Saskatchewan Ambient Air Quality Standards
0
5
10
15
20Wind Spd. (m/s)
0
8
16
24
32NO (ppb)
0
20
40
60
80O3 (ppb)
1
4
7
10
13
1 8 15 22 29
Air Quality Health Index (AQHI)
Low Risk
(1 to 3)
Moderate Risk
(4 to 6)
High Risk
(7 to 10)
Very High Risk
(>10)
Conc. Avg. SAAQS Exceed SAAQS Exceed
Unit Conc. Conc. Time Standard Days Conc. Time Standard HoursNO ppb 0.5 99.6% 1.3 Nov-14 - - 5.1 Nov-05 19:00 - -
NO2 ppb 1.5 99.6% 4.1 Nov-27 - - 11.0 Nov-05 19:00 212 0
NOx ppb 1.9 99.6% 4.9 Nov-27 - - 16.1 Nov-05 19:00 - -
SO2 ppb 0.9 100.0% 3.1 Nov-28 57 0 12.4 Nov-26 13:00 172 0
O3 ppb 25 72.6% 33 Nov-16 - - 37 Nov-16 14:00 82 0
H2S ppb 0.8 99.9% 4.7 Nov-21 3.6 1 51.8 Nov-21 00:00 10.8 3
PM2.5 ug/m3 2 100.0% 6 Nov-25 30 0 19 Nov-01 18:00 - -
24-Hour RecordsMaximum
Month RecordsMaximum
Pollutants 1-Hour Records
Name Uptime
Page 1 of 2
0%
25%
50%
75%
100%NO
NO2
NOx
SO2
O3
H2SPM2.5
WS
WD
ET
Rain
Instrument Uptime (%)
0
5
0
8
0
8
16
24
32NOx (ppb)
0
5
10
15
20
1 8 15 22 29
SO2 (ppb)
0
8
16
24
32NO2 (ppb)
0
20
0
10
20
30
40PM2.5 (ug/m3)
-40
-20
0
20
40
1 8 15 22 29
Ext. Temp (C)
0
15
30
45
60H2S (ppb)
0
25
50
75
100
1 8 15 22 29
RH (%)
Page 1 of 2
SESAA Weyburn Station - November 2014 Summary Report
0%
10%
20%
30%N
E
S
W
Wind Rose
0%
10%
20%
30%N
E
S
W
SO2 Pollutant Rose
0%
10%
20%
30%N
E
S
W
NO2 Pollutant Rose
0%
10%
20%
30%N
E
S
W
H2S Pollutant Rose
0%
10%
20%
30%N
E
S
W
O3 Pollutant Rose
0%
10%
20%
30%N
E
S
W
PM2.5 Pollutant Rose
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
Color Code for Wind Spd & Pollutant Conc. Class
Page 2 of 2
S S
Monthly Update
*All data has been slope, intercept, and baseline corrected. Data may change after validation process.
*All compliance parameters were within the Saskatchewan Ambient Air Quality Standards, with the exception of 3 1-hour H2S exceedance
events, and 1 24-hour H2S exceedance event. Please refer to the exceedance summary tables for details.
*All compliance parameters are above 90% operational, with the exception of the O3 analyzer.
*Operational issues include 3 hours of NO/NO2/NOx data, and 1 hour od H2S data flagged as "power failure" intermittently throughout the
month due to power disruptions. All parameters were affected by these power disruptions, however NO/NO2/NOx and H2S were slower
to recover. The O3 analyzer was malfunctioning Nov 3-11, due to an intermittent issue which resolved itself after an airpointer hard reset.
Exceedance Time WS WD AQHI Rain SO2 NO2 O3 H2S PM2.5
mmm-dd hh:mm m/s deg - mm ppb ppb ppb ppb ug/m3
H2S 51.8 Nov-21 00:00 1.0 165 2 0.0 3.4 1.7 22 51.8 4
H2S 24.3 Nov-21 04:00 1.1 157 2 0.0 4.7 1.4 23 24.3 3
H2S 19.6 Nov-20 23:00 1.3 155 2 0.0 3.2 2.3 22 19.6 4
Exceedance Summary
Summary of Other Parameters During Exceedance1-hour Exceedance Information
Pollutant Conc. ppb
Parameters UnitWind Speed m/s 0.3 ≤ WS < 1.4 1.4 ≤ WS < 3.1 3.1 ≤ WS < 7.8 7.8 ≤ WS < 10.8 10.8 ≤ WS < 13.6 WS ≥ 13.6
SO2 ppb 0 ≤ C < 1 1 ≤ C < 5 5 ≤ C < 10 10 ≤ C < 57 57 ≤ C < 172 C ≥ 172
NO2 ppb 0 ≤ C < 5 5 ≤ C < 15 15 ≤ C < 30 30 ≤ C < 100 100 ≤ C < 212 C ≥ 212
O3 ppb 0 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 40 40 ≤ C < 60 60 ≤ C < 82 C ≥ 82
H2S ppb 0 ≤ C < 1 1 ≤ C < 3.6 3.6 ≤ C < 5 5 ≤ C < 8 8 ≤ C < 10.8 C ≥ 10.8
PM2.5 ug/m3
0 ≤ C < 2 2 ≤ C < 4 4 ≤ C < 10 10 ≤ C < 20 20 ≤ C < 30 C ≥ 30
Color Code for Wind Spd & Pollutant Conc. Class
WS WD AQHI Rain SO2 NO2 O3 H2S PM2.5
H2S 4.7 Nov-21 3.5 236 2 0.0 1.6 2.0 24 4.7 2
24-hour Exceedance Information
Page 2 of 2