• 1910.1030 BBP Training

Case 8: Tear gas residue carpet salvage in a home

A gentleman stood in the doorway of his wife’s home and screamed at the police outside, “I have a gun and I’m not afraid to use it!” or something close to that according to his wife.  The husband lived during the police action that followed his comments but the home was damaged from the tear gas projectiles fired into it. 

The contamination (tear gas) on the property was dispersed throughout the entire home.  A chemical fogger and manual hand sprayer were used to distribute the tear gas neutralizing solution.  The MSDS for the tear gas neutralizing chemical is on hand in accordance with OSHA Standard Hazard Communication 1910.1200.  

The Get The Odor Out formula used is specifically formulated to neutralize CS and CN teargas particulate. The whole of the interior of the structure was treated with the teargas neutralizer.

Gloves and all applicable personal protective equipment (PPE) were provided to create a protective barrier in between the technician and the site environmental hazards such as tear gas in accordance with OSHA Standard Personal Protective Equipment 1910.132. Before any action was taken by the technicians, a work plan was developed to identify hazards clearly and the work practice controls were adhered to and continually updated during the project. 

The actual inputs on the project were 32 hours of technician labor, 8 gallons of tear gas neutralizer, and 4 sets of personal protective equipment (PPE).  The customer requested that the biological fluids on the couch be treated to salvage the item opposed to discarding the piece of furniture.  

A disinfectant was applied to areas of the couch that may have been affected by blood with the MSDS for the chemical available in accordance with OSHA Standard Hazard Communication 1910.1200.  In order to salvage the carpet, the entire home was treated with multiple layers of teargas neutralizing solution.  After all the carpet and expose surfaces were treated with neutralizer, the entire home was then treated with a chemical extractor. 

This extractor was able to recover the teargas powder that was neutralized but still rested down in the carpet and surfaces.  The neutralizing solution is sprayed out of nozzles on the end of the wand and recovered through the larger vacuum hose which then settles in the recovery tank.  

In other teargas projects, most of them included the removal of carpet and pad due to the talc that settled into it.  The carpet on this project was able to be salvaged.  The HVAC system of the home was also treated with teargas neutralizer in order to target any reactive powder in the ventilation system.  

The home was restored to use after the remediation but it is unknown if the husband was allowed back home after the police were finished with him.

To neutralize any residual reactive tear gas dust, the entire home was treated with an atomizing fog of Get The Odor Out.  During the entire remediation, the windows were left open to introduce fresh air.  

Air scrubbers were used to circulate the air while the foggers sprayed solution.  Any airborne particulate was hydrated from the solution fog and would settle down for recovery on the ground or through the HEPA filter on the air scrubber and/or circulated outside through an open window or door.  The base ingredient of this product is Stabilized Chlorine Dioxide (2000 PPM) in addition to additives that neutralize CS and CN types of tear gas.  

Detergent water (Ajax) was used to wash surfaces in preparation for the chemical neutralizer.  In summary, the tear gas powder was concentrated in wall cavities and did not saturate the carpet.  The entire home was treated with the furniture and carpet salvaged.