Tuesday, May 1, 2012

April Air Quality readings

Some of the higher air quality readings from the three community air monitors in St. Bernard Parish.
View citizen's offsite logs and refinery incidents reports here
Health Standards

Sulfur Dioxide (SO2) 75 ppb hourly average
Hydrogen Sulfide (H2S) 1.4 ppb recommended daily exposure

Particulate Matter (PM 2.5)   35 



Sulfur Dioxide (SO2), at levels as low as 10 and 12 ppb, can cause headaches, bad odors, and other adverse quality of life effects.  Many residents report the "weathering" of vehicles, home trim such as gutters and fencing, and the corrosion on swing sets and other outdoor equipment or furniture.

Hydrogen Sulfide (H2S) can be detected at low levels. H2S at 8 ppb adversely effects nasal passages and respiratory system. H2S effects oxygen uptake in the blood and causes coughing and throat irritation.

The Kilburn and Warshaw 1995 study demonstrated people "living downwind from the processing of sour curde oil demonstrated neurobehavioral dysfunction and suffered headaches, nausea, vomiting, depression, nosebleeds and breathing difficulties." .




April 2012 Air Quality Readings
Hydrogen Sulfide &
Sulfur Dioxide PM 10
4/1/2012 6am Ventura 4 ppb H2S 43
4/2/2012 3pm Ch_Vista 49.5 ppb SO2
4/3/2012 10am Ventura 12 ppb SO2
2pm Ch_Vista 55.4 ppb SO2
4pm Ch_Vista 89.1 ppb SO2 41
5pm Ch_Vista 50.8 ppb SO2 54
4/5/2012 3am Ventura 7 ppb H2S
Meraux 12.0 ppb SO2
7am Ch_Vista 94.6 ppb SO2
8am Ch_Vista 126.5 ppb SO2
9am Ch_Vista 78.5 ppb SO2
3pm Ventura 46
4/7/2012 8pm Ch_Vista 64
Ventura 73
9pm Ch_Vista 66
Ventura 73
10pm Ch_Vista 72
Ventura 73
11pm Ch_Vista 74
Ventura 69
4/8/2012 12am Ch_Vista 73
1am Ch_Vista 57
2am Ch_Vista 57
3am Ch_Vista 66
4am Ch_Vista 67
5am Ch_Vista 68
6am Ch_Vista    Methane 2.46 PPMC 58
11pm Meraux 13.0  ppb SO2
4/9/2012 12am Meraux 16.3 ppb SO2
4/10/2012 4am Ventura 5 ppb H2S
Meraux 6 ppb H2S
5am Ventura 6 ppb H2S
Meraux 6 ppb H2S
6am Ventura 7ppb H2S
Meraux 5 ppb H2S
6pm Ventura 54
7pm Ventura 68
Meraux 10.9 ppb SO2
8pm Ventura 51
4/11/2012 12am Ventura 4 ppb Hydrogen Sulfide
1am Ventura 4 ppb Hydrogen Sulfide
Meraux 10.9 ppb SO2
2am Ch_Vista   Methane 3.48 PPMC
Ventura 4 ppb Hydrogen Sulfide
3am Ch_Vista    Methane 3.20 PPMC
Ventura 4 ppb Hydrogen Sulfide
4/15/2012 8am Ventura 42
9am Ventura 60
10am Ventura 54
11am Ventura 62
Ch_Vista 50.5 ppb SO2
noon   Ventura 44
Ch_Vista 65.1 ppb SO2
1pm Ventura 45
Ch_Vista 97.5 ppb SO2
2pm Ventura 47
Ch_Vista 87.7 ppb SO2
3pm Ventura 41
Ch_Vista 87.3 ppb SO2
4pm Ventura 39
5pm Ventura 38
6pm Ventura 36
7pm Ventura 43
4/16/2012 2am Ventura 35
3am Ventura 37
4am Ventura 37
5am Ventura 34
6am Ventura 39
7am Ventura 36
8am Ch_Vista 47.1 ppb SO2
Ventura 43
9am Ch_Vista 85.6 ppb SO2
Ventura 53
10am Ch_Vista 138.5 ppb SO2
Ventura 49
11am Ventura 35
4/17/2012 9am Ventura 69
noon Ventura 36
4/20/2012 3am Meraux 29.2 ppb SO2
5am Ventura 52
6am Ventura 63
7am Ventura 62
4/21/2012 4am Ventura 4 ppb H2S
5am Ventura 4 ppb H2S
6am Ventura 5 ppb H2S
4/24/2012 12am Ventura 5 ppb H2S
1am Ventura 8 ppb H2S
Meraux 8 ppb H2S
2am Ventura 11 ppb H2S
Meraux 9 ppb H2S
3am Ventura 15 ppb H2S
Meraux 9 ppb H2S
4am Ch_Vista 6 ppb H2S     Met 2.57 PPMC
Ventura 15ppb H2S
Meraux 10 ppb H2S
5am Ch_Vista 11 ppb H2S   Met 2.76 PPMC
Ventura 11 ppb H2S
Meraux 7 ppb H2S
6am Ch_Vista 6 ppb H2S
Ventura 5 ppb H2S 42
4/25/2012 12M Meraux 11.6 ppb SO2
Ventura 5 ppb H2S
1am Ventura 5 ppb H2S
2am Ventura 7 ppb H2S
3am Ventura 7 ppb H2S
4am Meraux 4 ppb H2S 10.1 ppb SO2
Ventura 7 ppb H2S
Ventura 7 ppb H2S
6am Meraux 5 ppb H2S
Ventura 7 ppb H2S
4/26/2012 5am Ch_Vista 5 ppb H2S  52.3 ppb SO2 43
Ventura 4 ppb H2S 11 ppb SO2
6am Ch_Vista 14 ppb H2S 82.8 ppb SO2 38
Ventura 5 ppb H2S  13 ppb SO2
10pm Ventura 9 ppb SO2
4/27/2012 1am Ventura 9 ppb SO2
2am Ch_Vista 5 ppb H2S
Ventura 12 ppb SO2
3am Ch_Vista 9 ppb H2S
Ventura 11 ppb SO2
4am Ventura 6 ppb SO2
5am Ventura 36
9pm Ch_Vista 4 ppb H2S 
Meraux 10.1  ppb SO2
10pm Ch_Vista 6 ppb H2S
Meraux 10.4 ppb SO2
11pm Ch_Vista 5 ppb H2S
Meraux 9.2 ppb SO2
4/28/2012 12am Ch_Vista 6 ppb H2S
1am Ch_Vista 7 ppb H2S
2am Ch_Vista 6 ppb H2S
3am Ch_Vista 7 ppb H2S
4am Meraux      Methane 2.40 PPMC
7pm  Ventura 35
4/29/2012 4am Meraux 3 ppb H2S
5am Meraux 5 ppb H2S
6am Meraux 4 ppb H2S
Ventura 4 ppb H2S
4/30/2012 noon Ch_Vista 21.6 ppb SO2
health  standards
SO2 75 ppb hourly average
H2S 1.4 ppb recommended daily exposure
PM 2.5 35
SO2 values displayed
are hourly averages.
We donot have access to
the 5 minute and 30 minute
peak exposure levels.  We donot have .
access to PM10 conversion information to n 
PM 2.5.

No comments:

Blog Archive