Friday, August 21, 2020

WHO SAYS THAT WE DON'T HAVE DIOXINS OR DDT IN OUR GROUNDWATER IN ELMIRA?

Well let's see now: Uniroyal, Crompton, Chemtura and likely Lanxess say that we don't. Apparently Jeff Merriman, a now retired environmental engineer for the polluter, said that we don't. I believe that even our illustrious Ontario Ministry of Environment (MOE/MECP) have stated the same. CRA and GHD, consultants to Uniroyal/Crompton/Chemtura and Lanxess likely all deny that there is either DDT of dioxins/furans in Elmira's groundwater. ............................................................................................................ Do I believe them? No I do not. They are neither nuetral nor unbiased. All of them are in a conflict of interest position regarding the question. It is in their best interests, both credibility wise and financially wise to state thusly. ................................................................................................ They all claim that DDT and especially dioxins/furans are insoluble. They have stated that they are "hydrophobic". They prefer to attach/bond themselves to soil particles and if they are found in surface water it is as a suspended sediment not dissolved into the water. Hmm. .......................................................................................................... There are two main technical reasons why I believe that those parties are being less than forthright. One please look up either the (Ontario) Safe Drinking Water Act (2002) or else just google Ontario Drinking Water Standards (ODWS). Guess what? There are values and criteria stated for both DDT concentrations in our drinking water and for dioxins in our drinking water. They are 30 parts per billion (ug/l) also known as .03 mg/l or parts per million (ppm) for DDT and 15 parts per quadrillion (ppq) or .000000015 mg/l or parts per million (ppm) for dioxins/furans. Soooooo please tell me if these two compounds are insoluble in water then why does Ontario have a specific health based maximum concentration for them in drinking water??????? ..................................................................................................... Secondly please google both DDT and dioxins or even TCDD which stands for Tetra Chloro Dibenzo p Dioxin. Specifically I googled DDT Wikipedia and then TCDD Wikipedia and up they came. These pages show various chemical properties of these compounds such as chemical formula, density, boiling point, vapour pressure and SOLUBILITY! Yes! Well guess what? I checked the solubility readings for DDT, TCDD and also for NDMA. As expected NDMA is very soluble and indeed has by far the highest solubilty reading of 290 mg/l. Next is DDT at 25 ug/l and yes with the lowest solubility of the three is TCDD at .2 ug/l. But guess what? None of these three compounds are described as insoluble. ................................................................................................. Now lets just compare each compounds solubility with its drinking water standard. If in fact a compound's ability to dissolve in water (i.e. solubility) is less than its drinking water standard then there might be an argument that the compound can not pollute the water enough to make it unsafe. That would still somewhat beg the question as to why the province bothered then to set a drinking water standard for it. NDMA solubility is 290 mg/l (parts per million) and its' standard is .009 parts per billion or .000009 parts per million (ppm). Clearly an issue. DDT solubility is 25 ug/l (parts per billion) and its' standard is 30 parts per billion. Well now that is interesting. There is an argument to be made here not for DDT being insoluble but that it's solubility in water is just barely below its' drinking water standard. TCDD solubility is .2 ug/l (parts per billion) and its' standard is .000000015 parts per million or .000015 parts per billion. Also clearly an issue! .......................................................................................................... So DDT possibly may not be a drinking water issue in pristine groundwater which of course Elmira's is not. The question for me is whether the other compounds and solvents in Elmira's groundwater increase the solubility of DDT or decrease it. That is worth examining but don't count on our authorities having any interest in so doing. NDMA we already know is a huge issue in our groundwater but now more than ever I am convinced that we should have been testing for dioxins in our groundwater for at least the last three decades and have not been. Or let me clarify. Perhaps Uniroyal/Lanxess and the MOE/MECP have been doing that testing and simply not sharing the bad news with us.

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