Pretend Gainesville Cares’ Indoor Dioxin Study Is Just Plain WRONG

15 Sep

Part Three: Workgroup’s Indoor Dioxin Study Ignored Two of the Three Exposure Pathways for Contaminants

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Only one pathway of exposure was studied in the workgroup’s investigation of indoor contamination in the Stephen Foster neighborhood. The tracking in of contaminated outdoor soil which might result in the incidental swallowing of very small amounts of indoor dust. Samples for this pathway were obtained by vacuuming dust from floors. There are two other equally relevant pathways of exposure that also meet all five criteria according to the EPA’s pathway of exposure definition that the workgroup failed to study.

hazmat babyTheir study “does not address inhalation of indoor dust. Because of the large day to day variation in indoor air quality, the 2011 dioxin dust workgroup (made up of county/state/federal health & environmental agencies, University of Florida toxicologists, ‘community leaders’, and THE RESPONSIBLE PARTY) did not recommend indoor air testing.” Why would a valid toxic exposure pathway not be studied?

 

“Also, extrapolation of indoor air dioxin levels based on levels in carpets and on floors is too uncertain to accurately assess the health risk from dust inhalation.” Why would an indoor AIR test be sampled from carpets or floors? The devil is in the details and makes it much easier to understand this strange choice of a sample area for indoor AIR testing. Because floor dust is tracked in from outside by foot traffic and is the only pathway affected by the outside soil removal undertaken by the responsible party as a clean-up solution. Beazer East, Inc. funded and supplied the EPA with indoor test results of the one and only pathway with a direct tie to the outside soil remediation they were performing.

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hazmat dog“This report also does not address skin contact with dioxins in indoor dust. Health scientists know too little about the toxicity of dioxins from skin contact to assess the health risk.” But, the workgroup had no problem foraying into uncharted waters when they devoted the bulk of their indoor dioxin study to the brominated dioxins found in homes, even though “health scientists know too little about the toxicity of the brominated dioxins/furans to assess their health risk” and they do not even originate from the Superfund site.

The excuses for not using two ironclad contamination exposure pathways make no sense unless the only pathway of exposure the workgroup wants to consider is the one Beazer East “theoretically” diminished by the replacement of outside soil to the State standard of 7ppt.

The same entities that set the INDOOR dioxin contamination cleanup standard to the unusually high 190 ppt behind closed doors, also decided not to pursue these genuine health risk pathways. So why only use the floor dust as a pathway of exposure, when “Remedial Action Plans (RAPs) should not be approved without a demonstration that ALL relevant pathways have been addressed”? It would be economically catastrophic to Koppers Industries’ wallet if a precedent of permanent relocation, or even an area-wide indoor home remediation was initiated here in Gainesville Florida, and would set the dominoes falling throughout their entire empire of Superfund sites (and they have many, all around the world). This is where people’s lives get trumped by something called “cost prohibitness”. Where there’s smoke, there’s fire. And when the company in charge of the clean-up is also in charge of determining how much they have to clean, the residents with contaminated homes are being manipulated and marginalized in a real game of life or death. If there was enough contamination outside for a foot of soil to be removed across the entire neighborhood, why are some residents being condemned to live in homes with much higher levels of contamination on the inside?

MoneyOverLives

 

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