tribal school air toxics monitoring: nenahnezad
DESCRIPTION
Tribal School Air Toxics Monitoring: Nenahnezad . Air Quality Control & Operating Permit Program May 23,2012. Nenahnezad Boarding School. Eastern View from Nenahnezad School. Southern View from Nenahnezad School. Northern View from Nenahnezad School. Western View from - PowerPoint PPT PresentationTRANSCRIPT
Tribal School Air Toxics Monitoring: Nenahnezad
Air Quality Control & Operating Permit Program
May 23,2012
Nenahnezad Boarding School
Eastern View from Nenahnezad School
Southern View from Nenahnezad School
Western View from Nenahnezad School
Northern View from Nenahnezad School
Nenahnezad School Setup
Volatile Organic Compound (VOC) Sampling Setup
Carbonyl Sampling
Setup
Local farm area located north of school
Four Corners Power Plant located 5 miles southwest
from the school
San Juan Generating Station located northwest of the school
Western Gas Refinery located northeast of
school in Kirtland, NM
Shiprock is located 24 miles west of school
April VOC Toxic Sample Results With Reported Concentrations (detected)
Data Results: April 2011
Data Results: Nov.2010 – Jun. 2011Overall VOC Toxic Sample Results With Reported Concentrations
Acrolein
Benzene
1,3-Butadiene
1,1,2,2-Tetrach
loroethane
1,2,4-Trimethylb
enzene
1,3,5-Trimethylb
enzene
Acetonitr
ile
Acetyl
ene
Carbon disulfide
Carbon tetra
chlorid
e
Chloromethane
Dichlorodifluoromethane
Dichloromethane
Ethylbenzene
m/p Xylene
Methyl ethyl
ketone
Methyl iso
butyl ke
tone
n-Octa
ne
o-Xylene
Propylene
Styrene
Toluene
Trichlorofluoromethane
0.000
0.200
0.400
0.600
0.800
1.000
1.200
ppbv
April Carbonyl Sample Results Reported Concentrations (detected)
Data Results: April 2011
Data Results: Nov. 2010 – Jun. 2011Overall Carbonyl Sample Results Reported Concentrations
Acetaldehyde Acetone Benzaldehyde Formaldehyde Propionaldehyde Valeraldehyde Hexanaldehyde0.000
0.500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
ppbv
Health effect from high concentration of VOC:
• Acetonitrile – Through inhalation
cause irritation of mucous membranes in humans, weakness, nausea, and convulsions.
– Major effects consist of central nervous system, headaches, numbness and tremor.
– Noncancerous.
• Sources/Potential Exposure/ Uses:– Emissions into the air include
manufacturing and industrial facilities, and automobile exhaust.
– Exposed through breathing contaminated air, from smoking tobacco or through skin contact in the workplace.
– Used in chemical laboratories for the detection of materials such as pesticide residues.
Health effect from high concentration of VOC:
• Acrolein– Toxic to human through
inhalation, oral, or dermal exposures.
– Upper respiratory tract irritation and congestion.
– Noncancerous.
• Sources and Potential Exposure:– Breakdown of certain
pollutants found in outdoor air , from the burning of organic matter including tobacco, from burning of fuels such as gasoline or oil.
– Airborne exposure may occur by contaminated air, by smoking tobacco, nearby vehicle exhaust, or by being near oil or coal fired power plants.
Health effect from high concentration of VOC:
• Benzene– Inhalation may cause
drowsiness, dizziness, headaches, as well as eye, skin, and respiratory tract irritation, and at high levels, unconsciousness.
– Disorders in the blood: Reduces numbers of red blood cells and aplastic anemia.
– Effects on developing fetus.– Increase incidence of
leukemia.– Group A known human
carcinogen.
• Sources and Potential Exposure:– Emissions from burning coal
and oil, gasoline service stations, motor vehicle exhaust.
– Tobacco smoke contains benzene and accounts for nearly half the national exposure to benzene.
– Individuals may also be exposed to benzene by consuming contaminated water.
Health effect from high concentration of Carbonyl:
• Acetaldehyde– Short-term: Irritation of
the eyes, skin, and respiratory tract.
– Long-term: Resemble those of alcoholism.
– Probable human carcinogen.
• Sources and Potential Exposure:– Intermediate product of
higher plant respiration and formed as product of incomplete wood combustion in fireplaces and woodstoves, vehicle exhaust fumes, and coal refining and waster processing.
Health effect from high concentration of Carbonyl:
• Formaldehyde– Human can result in
respiratory symptoms, and eye, nose, and throat irritation.
– Limited human studies reported between lung and nasopharyngeal cancer.
– EPA considered formaldehyde a probable human carcinogen.
• Sources and Potential Exposure:– Predominantly used as a
chemical intermediate.– Minor uses in agriculture, an
analytical reagent, in concrete, fumigants, and disinfectants.
– Major sources appear to be power plants, manufacturing facilities, incinerators and automobile exhaust emissions.
Roadblocks Encountered:• Sampler Timer not opening at
the start of sample run for the VOC sampler.
• Carbonyl Buck pump not upgraded with updated software. Also pump not ending on the sample end date, samples for 72 hours instead of ending at 24 hours.
• Sonic Anemometer datalogger does not recognize field laptop, so downloading software has been difficult.
• Filling out Chain of Custody Forms, make sure there is a template of one to follow.
• Before samplers are setup at site, run an invalid sample in your office, to work out all the questions or problems, before hand.
• Before sampling, make sure all contact personal information are on hand (field staff).– Who is the individual to contact
for troubleshooting?
Recommendations:• Report to the school board on
project.– Suggest applying for a grant to evaluate
the high concentration detected.• Inform the community chapter.
– Recommend applying for a grant and evaluate surrounding community activities.
• NNEPA AQCP will be using results to consider permanent sampling of VOC and Carbonyl for future air monitoring site.
CONTACT INFORMATIONNNEPA AIR QUALITY CONTROL &
OPERATING PERMIT PROGRAMP.O. BOX 529
FORT DEFIANCE, AZ [email protected]
PHONE: (928)729-4246 OR 4096FAX: (928)729-4323 OR 4313