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The Department of Homeland Security (DHS) Science and Technology Directorate (S&T) announces the availability of a draft Environmental Assessment (EA) for performing a collaborative scientific study with OSU-University Multispectral Laboratories, L.L.C. (UML) that will include low level outdoor release of inert chemical and biological simulant materials at the Chilocco (former) Indian School Campus outside of Newkirk, Oklahoma, during winter 2018 and again in summer 2018. The study is part of the Department’s ongoing commitment to preparedness and the shared responsibility of protecting the nation’s critical infrastructure. The purpose of this study is to gather data that enhances our predictive capabilities in the event of a biological agent attack. Specifically, this work will help in predicting the extent to which an intentional release of a biological agent may penetrate single family and multi-family structures. These tests will release inert chemicals and biological materials that will be used to measure the amount of material that penetrates the buildings under varied conditions.
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However, simulants will be used in the testing, although the DHS website doesn't state what simulants they will be using.
This project would further advance preparedness by providing improved estimates of the boundaries and levels of contamination in homes and buildings following an outdoor aerosol release of a biological agent under varied conditions. UML will release materials upwind of select buildings and experimentally determine the amount of material that penetrates the buildings. The data collected would facilitate modeling efforts that suppo rt response and recovery decisions and actions by local, state, tribal, and federal emergency managers.
Alternative Inert Particle 1 would utilize titanium dioxide (TiO 2 ), a white odorless powder that is chemically insoluble in water, nonreactive, nonflammable, and nonhazardous. This material is not regulated or defined as a toxic or hazardous material. Alternative Inert Particle 2 is a 90:10% mixture of urea powder with CL Fluorescent Brightener 220. Urea serves an important role in the metabolism of nitrogen -containing compounds by animals and is the main nitrogen -containing substance in the urine of mammals. CL Fluorescent Brightener 220 is a finishing reagent in textiles, and up to 2% b y weight in laundry detergents.
Alternative Biological Particulate 1 would employ the use of Bacillus thuringiensis subsp kurstaki (Btk) barcoded spores, which are the preferred biological material to be employed for sensitive characterization of building penetration. Native Btk , sold under the commercial name of Dipel, is used extensively as a bioinsecticide and is not considered a hazard by the U .S. Environmental Protection Agency ( EPA ) when handled appropriately .
Alternative Biological Particulate 2 would utilize native Btk, without barcoding. Native Btk is an approved biopesticide under the commercial name of Dipel. This alternative would require much more time and labor to execute. Alternative Biological Particulate 3 would employ a tagged, inert, fluorescent particle known as DNATrax. The safety of DNATrax particles cannot be assumed, therefore, its use presented unknown risks not conducive to testing objectives.
The release activities would take place at the abandoned Chilocco campus in rural Oklahoma (Figure 1) during January/ February 2018 and then again during June/July, 2018 . This site is closed to the general public under an exclusive use agreement between the site ’s tribal owners, the Council o f Confederated Chilocco Tribes (CCCT) and the OSU -University Multispectral Laboratories L .L.C. (UML). UML is a nonprofit 501c3 research laboratory , owned by Oklahoma State University, which supports various federal agencies for sensor testing and training.
originally posted by: Phage
However, simulants will be used in the testing, although the DHS website doesn't state what simulants they will be using.
This project would further advance preparedness by providing improved estimates of the boundaries and levels of contamination in homes and buildings following an outdoor aerosol release of a biological agent under varied conditions. UML will release materials upwind of select buildings and experimentally determine the amount of material that penetrates the buildings. The data collected would facilitate modeling efforts that suppo rt response and recovery decisions and actions by local, state, tribal, and federal emergency managers.
Alternative Inert Particle 1 would utilize titanium dioxide (TiO 2 ), a white odorless powder that is chemically insoluble in water, nonreactive, nonflammable, and nonhazardous. This material is not regulated or defined as a toxic or hazardous material. Alternative Inert Particle 2 is a 90:10% mixture of urea powder with CL Fluorescent Brightener 220. Urea serves an important role in the metabolism of nitrogen -containing compounds by animals and is the main nitrogen -containing substance in the urine of mammals. CL Fluorescent Brightener 220 is a finishing reagent in textiles, and up to 2% b y weight in laundry detergents.
Alternative Biological Particulate 1 would employ the use of Bacillus thuringiensis subsp kurstaki (Btk) barcoded spores, which are the preferred biological material to be employed for sensitive characterization of building penetration. Native Btk , sold under the commercial name of Dipel, is used extensively as a bioinsecticide and is not considered a hazard by the U .S. Environmental Protection Agency ( EPA ) when handled appropriately .
Alternative Biological Particulate 2 would utilize native Btk, without barcoding. Native Btk is an approved biopesticide under the commercial name of Dipel. This alternative would require much more time and labor to execute. Alternative Biological Particulate 3 would employ a tagged, inert, fluorescent particle known as DNATrax. The safety of DNATrax particles cannot be assumed, therefore, its use presented unknown risks not conducive to testing objectives.
The release activities would take place at the abandoned Chilocco campus in rural Oklahoma (Figure 1) during January/ February 2018 and then again during June/July, 2018 . This site is closed to the general public under an exclusive use agreement between the site ’s tribal owners, the Council o f Confederated Chilocco Tribes (CCCT) and the OSU -University Multispectral Laboratories L .L.C. (UML). UML is a nonprofit 501c3 research laboratory , owned by Oklahoma State University, which supports various federal agencies for sensor testing and training.
www.dhs.gov...
FAQ
Titanium dioxide has recently been classified by the International Agency for Research on Cancer (IARC) as an IARC Group 2B carcinogen ''possibly carcinogen to humans''.
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The French authorities have submitted an intention to propose a harmonised classification for titanium dioxide as a category IB carcinogen. The intention says the proposal was submitted recently, but details have yet to be published.
Classification as a category 1A or B carcinogen has significant implications under REACH as:
it is a criterion for nominating substances of very high concern (SVHC) under Article 57a; and
substances with such a classification should be restricted in consumer applications – of which titanium dioxide has many, including some using the substance in its nanoform.
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6. Each release will be performed under fair weather conditions such as clear skies with no precipitation forecasted.
7. Wind dire ction will be from the south traveling north between the speeds of 2 to 12 mph.
8. The total particulate matter disseminated will be limited to 600 grams or less over a 10- minute period per release event .
9. Release s will only take place when there are no people conducting agricultura l activities in the fields north of campus.