Hopefully you were able to attend the meeting last night presented by the ABC Alliance about natural gas exploration in our area and how it impacts our community, including drilling near the Argyle schools. But as you can see from the following Channel 11 video, Argyle ISD parents aren’t the only ones concerned about gas drilling near their children. Harmful chemicals were found at 3 FWISD Schools:
You can read more details on the FWISD and other drilling issues on Texas Sharon’s site.
Here is a map of the Argyle Schools and the drilling and proposed drilling in our area. You can review the state collected air samples by our schools clicking on the above menu link TCEQ COLLECTED AMBIENT AIR SAMPLES.
{ 10 comments… read them below or add one }
Carbon Disulphide was found 1.5 miles from a site in very high concentrations. My home 1.5 miles from Blessing Site. Alarmingly high.
This is a NEUROTOXIN and incredibly dangerous.
Especially if you or a loved one develops a sulfur allergy.
And TCEQ currently does NOT test for sulfur compounds. I was told, that the sulfur trailer is ‘too expensive to bring up to North Texas’. They will test for H2S with a wand to see if they can detect it. But hey, our noses can do that, or if they can’t we will drop dead from it.
That’s our governmental agencies for you. I’m not saying we need less regulatory systems. We need more, reliable, transparent regulation that will keep us safe.
If you feel REALLY sleepy,
get headaches,
slur your words,
metabolize alcohol differently,
have trouble concentrating,
get diarrhea,
walk into walls in your home,
become agitated more easily,
entering into early menopause
please put it together,
it may just simply be the toxic cocktail you are being exposed to everyday.
The one, that no one, (and the TCEQ openly admits to) “has any idea what the long term effects of this combination of compounds does”.
Reassuring isn’t it?
Don’t you feel, we should know what the long term effects are before we continue any more of this mayhem?
18 to 24 month Emergency Moratorium.
What a lot of you don’t know, is that both in Argyle and Bartonville, the well water has had these huge influxes of chlorides and sulfates, indicative of natural gas extraction.
Can I please get a few more volunteers to help keep yourself and me safe??
http://www.cdc.gov/niosh/idlh/75150.html
Carbon disulfide
IDLH Documentation
CAS number: 75–15–0
NIOSH REL: 1 ppm (3 mg/m3) TWA, 10 ppm (30 mg/m3) STEL [skin]
Current OSHA PEL: 20 ppm TWA, 30 ppm CEILING,
100 ppm 30-minute MAXIMUM PEAK
1989 OSHA PEL: 4 ppm (12 mg/m3) TWA, 12 ppm (36 mg/m3) STEL [skin]
1993-1994 ACGIH TLV: 10 ppm (31 mg/m3) TWA [skin]
Description of Substance: Colorless to faint-yellow liquid with a sweet ether-like odor.
LEL: . . 1.3% (10% LEL, 1,300 ppm)
Original (SCP) IDLH: 500 ppm
Basis for original (SCP) IDLH: The chosen IDLH is based on the statement in Patty [1963] that symptoms occur after 30 minutes of exposure to 420 to 510 ppm [Flury and Zernik 1931]. AIHA [1956] reported that severe symptoms and unconsciousness may occur within 30 minutes at 1,100 ppm [Patty 1963]. Patty [1963] also reported that exposure of humans to 4,800 ppm for 30 minutes causes coma and may be fatal [Flury and Zernik 1931].
Existing short-term exposure guidelines: 1992 American Industrial Hygiene Association (AIHA) Emergency Response Planning Guidelines (ERPGs):
ERPG-1: 1 ppm (60-minute)
ERPG-2: 50 ppm (60-minute)
ERPG-3: 500 ppm (60-minute)
National Research Council [NRC 1984] Emergency Exposure Guidance Levels (EEGLs):
10-minute EEGL: 200 ppm
30-minute EEGL: 100 ppm
60-minute EEGL: 50 ppm
ACUTE TOXICITY DATA
Lethal concentration data:
Species
Reference
LC50
(ppm)
LCLo
(ppm)
Time
Adjusted 0.5-hr
LC (CF)
Derived
Value
Rat
Rat
Rat
Rat
Rat
Mouse
Human
AIHA 1992
AIHA 1992
AIHA 1992
AIHA 1992
Izmerov et al. 1982
Izmerov et al. 1982
Lefaux 1968
>1,670
15,500
3,000
3,500
7,911
3,165
—–
—–
—–
—–
—–
—–
—–
4,000
1 hr
1 hr
4 hr
4 hr
2 hr
2 hr
30 min
>2,088 ppm (1.25)
19,375 ppm (1.25)
6,000 ppm (2.0)
7,000 ppm (2.0)
12,658 ppm (1.6)
5,063 ppm (1.6)
4,000 ppm (1.0)
>208 ppm
1,938 ppm
600 ppm
700 ppm
1,266 ppm
506 ppm
400 ppm
Other animal data: RD50 (mouse), >81,000 ppm [AIHA 1992].
Other human data: Symptoms have occurred after 30 minutes of exposure to concentrations ranging from 420 to 510 ppm while exposure to 4,800 ppm for 30 minutes causes coma and may be fatal [Flury and Zernik 1931]. Severe symptoms and unconsciousness may occur within 30 minutes at 1,100 ppm [Patty 1963]. It has been reported that 760 ppm causes an immediate headache that lasts for hours [Browning 1953]. It has also been reported that minor symptoms are induced after several hours of exposure to 300 ppm, distinct signs of poisoning at 400 ppm, severe poisoning after 30 minutes at 1,150 ppm, and life-threatening health effects at 3,200 to 3,800 ppm [Bittersohl et al. 1972]. It has been reported that exposure at 2,000 to 3,300 ppm leads to narcosis in 30 minutes, and death occurs after 30 to 60 minutes of exposure at 5,000 ppm [Paluch 1954].
Revised IDLH: 500 ppm [Unchanged]
Basis for revised IDLH: Based on acute inhalation toxicity data in humans [Bittersohl et al. 1972; Browning 1953; Flury and Zernik 1931; Lefaux 1968], the original IDLH for carbon disulfide (500 ppm) is not being revised at this time.
REFERENCES:
1. AIHA [1956]. Carbon disulfide (carbon bisulfide). In: Hygienic guide series. Am Ind Hyg Assoc Q 17:446-447.
2. AIHA [1992]. Emergency response planning guidelines: carbon disulfide. Akron, OH: American Industrial Hygiene Association.
3. Bittersohl G, Ehrhardt W, Grund W, Grunewald A [1972]. Schwefelkohlenstoff. In: E. Kersten, ed., Franz Koelsch Handbuch der Berufserkrankungen. Jean, Germany: VEB Gustav Fischer Verlag, pp. 271-273 (in German).
4. Browning E [1953]. Toxicity of industrial solvents. New York, NY: Chemical Publishing Company, pp. 381-391.
5. Flury F, Zernik F [1931]. Schädliche gase dämpfe, nebel, rauch- und staubarten. Berlin, Germany: Verlag von Julius Springer, p. 299 (in German).
6. Izmerov NF, Sanotsky IV, Sidorov KK [1982]. Toxicometric parameters of industrial toxic chemicals under single exposure. Moscow, Russia: Centre of International Projects, GKNT, p. 32.
7. Lefaux R [1968]. Practical toxicology of plastics. Cleveland, OH: Chemical Rubber Company, p. 118.
8. NRC [1984]. Emergency and continuous exposure limits for selected airborne contaminants. Vol. 1. Washington, DC: National Academy Press, Committee on Toxicology, Board on Toxicology and Environmental Health Hazards, Commission on Life Sciences, National Research Council, pp. 41-56.
9. Paluch R [1954]. Toksykologia przemyslowa. PWT, Warszava, p. 351 (in Polish).
10. Patty FA, ed. [1963]. Industrial hygiene and toxicology. 2nd rev. ed. Vol. II. Toxicology. New York, NY: Interscience Publishers, Inc., p. 902.
Go back to the Documentation for Immediately Dangerous To Life or Health Concentrations (IDLHs)
This page was last updated 8/16/96:
Go back to the NIOSH home page or to the CDC home page.
Thank you Jana, Zoe, Runner Susan and many other who are trying to inform the public.
If residents would get past the “Benzene,” they would realize there are far greater chemicals in the drilling process that are dangerous to individuals and animals.
Wait, I don’t see anything on
24 hours a day,
7 days per week,
365 days per year.
Where are those guidelines?
Damage to the reproductive system and the nervous system from exposure to carbon disulfide is irreversible.
California has set a long-term limit of 300 ppb, and it is considered one of the more protective limits in the country, even though there hasn’t been as much research into the compound as others.
Like benzene, workers exposed to CS2 were getting poisoned and over the years, recommended exposure levels for CS2 kept dropping. This compound may need more research in order for us to know what the “safe” level is. There is no safe level of benzene, but in our modern life it is wickedly difficult to get that to zero for everyone. Because CS2 is not naturally occurring, I wonder whether it wouldn’t be easier to get that zero — like asbestos exposure.
The limit for Texas was set to 1 ppb. One expert I checked with said “are you sure that isn’t 1 ppm?” Even TCEQ acknowledges that level is too protective — based on current research.
By the way, that — based on current research — is a huge qualifier, folks.
You cannot know what no one knows.
I haven’t checked on whether Texas has revisited that level, but I’m sure to do it right, it would take a while and would be based on research that is not nearly as exhaustive as the research on benzene.
Sadly, that’s where we are. Feels good to be a guinea pig, doesn’t it?
Peggy – I believe you said it before….We ARE the experiment. Agreed!
TCEQ does NOT test for carbon disulfide. The only way to know is to have independant testing done.
It would be prudent of the school district to have indepentant testing done and make those results known to the public.
The EPA has identified about 180-190 air toxics. TCEQ’s permanent monitors track 46 of them — most related to the creation of ozone.
TCEQ measures 84 air toxics with its Summa canisters — but not sulfides. I believe only one carbonyl is in that suite they test for — it’s not formaldehyde.
If an inspector finds 800 ppm on their TVA wand — which has been measured downwind of Argyle Central — no one, apparently, has a a way of telling us what comprises those 800 parts. In fact, they apparently can’t even break down just 1 of those ppm.
Lon Burnam filed a bill Monday that requires a 1,200-foot setback from schools.
http://www.star-telegram.com/2011/02/21/2865325/bill-would-extend-gas-drilling.html