State Implementation Plans:
The Louisiana DEQ must submit a plan to the United
States EPA that demonstrates changes at the nearby plants will bring the air
quality of St Bernard Parish into healthy levels for Sulfur Dioxide.
Currently, St Bernard Parish’s air quality is in violation of the one-hour health standard for sulfur dioxide [ 75 ppb ], and the amount of sulfur dioxide in our air is causing public health issues.
Currently, St Bernard Parish’s air quality is in violation of the one-hour health standard for sulfur dioxide [ 75 ppb ], and the amount of sulfur dioxide in our air is causing public health issues.
Sulfur dioxide is a nonflammable,
colorless gas that is heavier than air, and has a strong, pungent odor with
irritating properties.
Acute exposure occurs when sulfur dioxide levels are ten parts per
billion (10 ppb) for 15 minutes; it is not uncommon to have acute
exposure events in St Bernard Parish.
Below is a chart of 5 minute readings
from various days at the Chalmette Vista monitor, which is located at the site
of Blue Bird Park playground. The
one-hour average is displayed as CDLST intervals. The 5 minute chart illustrates the importance
of keeping the one-hour average below 75 ppb, and easily shows how often the 15
minute intervals with concentrations of sulfur dioxide at or higher than 10 ppb
occur.
| CHALMETTE VISTA SO2 005m | ||
| Date | Time (CST) | Final Value (PPB) |
| July 4, 2016 | 16:00 | 6.0 |
| July 4, 2016 | 16:05 | 4.2 |
| July 4, 2016 | 16:10 | 4.0 |
| July 4, 2016 | 16:15 | 3.4 |
| July 4, 2016 | 16:20 | 25.9 |
| July 4, 2016 | 16:25 | 67.4 |
| July 4, 2016 | 16:30 | 19.1 |
| July 4, 2016 | 16:35 | 14.0 |
| July 4, 2016 | 16:40 | 22.6 |
| July 4, 2016 | 16:45 | 35.9 |
| July 4, 2016 | 16:50 | 83.5 |
| July 4, 2016 | 16:55 | 66.0 |
| 5 pm (CDLST) one-hour avg | 29.3 ppb | |
| July 4, 2016 | 17:00 | 44.9 |
| July 4, 2016 | 17:05 | 190.8 |
| July 4, 2016 | 17:10 | 178.0 |
| July 4, 2016 | 17:15 | 169.3 |
| July 4, 2016 | 17:20 | 140.2 |
| July 4, 2016 | 17:25 | 146.5 |
| July 4, 2016 | 17:30 | 170.9 |
| July 4, 2016 | 17:35 | 118.0 |
| July 4, 2016 | 17:40 | 18.8 |
| July 4, 2016 | 17:45 | 95.7 |
| July 4, 2016 | 17:50 | 88.9 |
| July 4, 2016 | 17:55 | 61.5 |
| 6 pm (CDLST) one-hour avg | 118.6 ppb | |
| July 6, 2016 | 16:00 | 62.4 |
| July 6, 2016 | 16:05 | 8.0 |
| July 6, 2016 | 16:10 | 5.1 |
| July 6, 2016 | 16:15 | 13.0 |
| July 6, 2016 | 16:20 | 84.0 |
| July 6, 2016 | 16:25 | 97.4 |
| July 6, 2016 | 16:30 | 31.1 |
| July 6, 2016 | 16:35 | 37.9 |
| July 6, 2016 | 16:40 | 147.7 |
| July 6, 2016 | 16:45 | 29.0 |
| July 6, 2016 | 16:50 | 16.9 |
| July 6, 2016 | 16:55 | 55.9 |
| 6pm (CDLST) one-hour avg | 49 ppb | |
| July 6, 2016 | 17:00 | 9.0 |
| July 6, 2016 | 17:05 | 6.5 |
| July 6, 2016 | 17:10 | 63.5 |
| July 6, 2016 | 17:15 | 127.7 |
| July 6, 2016 | 17:20 | 145.4 |
| July 6, 2016 | 17:25 | 189.4 |
| July 6, 2016 | 17:30 | 216.6 |
| July 6, 2016 | 17:35 | 173.1 |
| July 6, 2016 | 17:40 | 20.5 |
| July 6, 2016 | 17:45 | 19.6 |
| July 6, 2016 | 17:50 | 12.2 |
| July 6, 2016 | 17:55 | 6.4 |
| 7pm (CDLST) one-hour avg | 82.4 ppb | |
| July 7, 2016 | 13:00 | 11.0 |
| July 7, 2016 | 13:05 | 131.5 |
| July 7, 2016 | 13:10 | 31.6 |
| July 7, 2016 | 13:15 | 60.2 |
| July 7, 2016 | 13:20 | 164.2 |
| July 7, 2016 | 13:25 | 38.6 |
| July 7, 2016 | 13:30 | 29.3 |
| July 7, 2016 | 13:35 | 56.9 |
| July 7, 2016 | 13:40 | 25.8 |
| July 7, 2016 | 13:45 | 24.6 |
| July 7, 2016 | 13:50 | 285.2 |
| July 7, 2016 | 13:55 | 54.0 |
| 3pm (CDLST) one-hour avg | 76 ppb | |
| July 7, 2016 | 14:00 | 22.0 |
| July 7, 2016 | 14:05 | 111.6 |
| July 7, 2016 | 14:10 | 23.9 |
| July 7, 2016 | 14:15 | 20.9 |
| July 7, 2016 | 14:20 | 148.6 |
| July 7, 2016 | 14:25 | 89.8 |
| July 7, 2016 | 14:30 | 12.4 |
| July 7, 2016 | 14:35 | 7.6 |
| July 7, 2016 | 14:40 | 6.4 |
| July 7, 2016 | 14:45 | 37.4 |
| July 7, 2016 | 14:50 | 32.1 |
| July 7, 2016 | 14:55 | 38.2 |
| 4pm (CDLST) one-hour avg | 45.9 ppb | |
| July 7, 2016 | 15:00 | 252.6 |
| July 7, 2016 | 15:05 | 137.2 |
| July 7, 2016 | 15:10 | 38.8 |
| July 7, 2016 | 15:15 | 101.5 |
| July 7, 2016 | 15:20 | 38.0 |
| July 7, 2016 | 15:25 | 52.2 |
| July 7, 2016 | 15:30 | 9.4 |
| July 7, 2016 | 15:35 | 7.2 |
| July 7, 2016 | 15:40 | 7.7 |
| July 7, 2016 | 15:45 | 5.9 |
| July 7, 2016 | 15:50 | 20.2 |
| July 7, 2016 | 15:55 | 142.2 |
| 4pm (CDLST) one-hour avg | 67.7 ppb | |
| July 7, 2016 | 18:00 | 122.1 |
| July 7, 2016 | 18:05 | 118.6 |
| July 7, 2016 | 18:10 | 113.3 |
| July 7, 2016 | 18:15 | 161.8 |
| July 7, 2016 | 18:20 | 127.5 |
| July 7, 2016 | 18:25 | 25.3 |
| July 7, 2016 | 18:30 | 21.5 |
| July 7, 2016 | 18:35 | 28.9 |
| July 7, 2016 | 18:40 | 10.7 |
| July 7, 2016 | 18:45 | 13.8 |
| July 7, 2016 | 18:50 | 8.4 |
| July 7, 2016 | 18:55 | 6.6 |
| 7pm (CDLST) one-hour avg | 63.2 ppb | |
No comments:
Post a Comment