Evaluation of EPA Air Monitoring

From the LEAN web site...
by Wilma Subra

Hydrogen Sulfide

Odor Threshold for Hydrogen Sulfide: 0.5 ppb
Physical Reaction Symptoms: 5 to 10 ppb

Acute Physical Health Symptoms:

Irritates eyes

Irritates nose, throat and lungs

Nausea, dizziness, confusion, headache

Venice Hydrogen Sulfide Air Monitoring Results for the period of April 28, 2010 - May 7, 2010
Date:	Hydrogen Sulfide (parts per billion):
April 28	None Detected
April 29	No Data
April 30	No Data
May 1	No Data
May 2	30 ppb
May 3	1,192 ppb
May 4	46 ppb
May 5	1,010 ppb
May 6	1,000 ppb
May 7	280 ppb

The results of the Hydrogen Sulfide air monitoring in Venice indicates that the concentration from May 2 through May 7 exceeded the odor threshold and Physical Health Symptom concentrations. The Hydrogen Sulfide concentrations on May 3, 5 & 6 exceeded the Physical Reaction Symptoms concentrations by a factor of 100 to 120 times. The Physical Reaction Symptoms have been reported by individuals living and visiting in Venice.

Volatile Organic Chemicals

Louisiana Ambient Air Standards for Volatile Organic Chemicals:

The Louisiana Ambient Air Standards for the most toxic Volatile Organic Chemicals range from 0.25 ppb to 3.76 ppb Annual Average.

• 1,1,2,2-Tetrachloroethane 0.25 ppb
• Benzene 3.76 ppb

The Ambient Air Standards for the remaining Volatile Organic Chemicals range from 5.49 to 61.25 ppb Annual Average.

• 1 and 2-nitropropane 5.49 ppb
• Methylene Chloride 61.25 ppb

Acute Physical Health Symptoms:

Irritation of eyes, skin, skin rashes

Irritate nose, throat and lungs

Headaches

Dizziness, light headed

Weakness

Nausea

Confusion

Venice Volatile Organic Chemicals Air Monitoring Results for the period of April 28, 2010 - May 7, 2010
Date:	Volatile Organic Chemicals (parts per billion):
April 28	None Detected
April 29	None Detected
April 30	3,084 ppb
May 1	923 ppb
May 2	3,416 ppb
May 3	780 ppb
May 4	1,243 ppb
May 5	37 ppb
May 6	483 ppb
May 7	None Detected

The results of the Volatile Organic Chemicals air monitoring indicates that the concentrations from April 30 through May 6 may have exceeded the Louisiana Ambient Air Standards for specific species of Volatile Organic Chemicals. The Volatile Organic Chemical concentrations on April 30 and May 2 may have exceeded the highest concentration of Annual Average Standard by as much 50 times. Specific chemicals that make up the total Volatile Organic Chemical concentrations are needed to further evaluate the results. This information has been requested from the Environmental Protection Agency. The Acute Physical Symptoms associated with the Volatile Organic Chemicals have been reported by individuals living and visiting in Venice.

---

Support this vital work today!

Yes! I want to help make Louisiana safe for us and for future generations!

LEAN is a 501(c)3 Non-Profit Organization Louisiana Environmental Action Network (LEAN) is a non-profit organization working to foster communication and cooperation among citizens and groups to address Louisiana's environmental problems.