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Prior to the release, 1,4-dioxane was measured at 2.4 parts per billion in the Haw, below the Environmental Protection Agency’s health advisory goal of 35 ppb. After the release, The N&O ...
By doing that, Sanford and Seminole County lowered 1,4-dioxane levels in drinking water to about half of the state and federal advisory level – 0.35 parts of the chemical in 1 billion parts of ...
Pittsboro says residents with health conditions should drink bottled water, asks for limited water use so it can limit intake from the Haw River. Pittsboro warns residents that 1,4-dioxane could ...
[28] 1,4-Dioxane was present in ethoxylated raw ingredients at levels up to 1410 ppm (~0.14%wt), and at levels up to 279 ppm (~0.03%wt) in off the shelf cosmetic products. [28] Levels of 1,4-dioxane exceeding 85 ppm (~0.01%wt) in children's shampoos indicate that close monitoring of raw materials and finished products is warranted. [28] While ...
Sanford is calling on two state agencies to say what they know regarding the 1,4-dioxane contamination first discovered a decade ago in the city’s wells, including at what concentration and over ...
In the United Kingdom, the environmental regulator permits only chemical additives which are classed as non hazardous to groundwater for fracturing fluids. [3] [4] [5] Operators are required to disclose the content of hydraulic fracturing fluids to the relevant environment agency [6] while the composition must be disclosed if the regulator demands it. [7]
The uncertainty and variability in the dose–response relationship of dioxins in terms of their toxicity, as well as the ability of dioxins to bioaccumulate, have led WHO experts to recommending very low tolerable daily intake (TDI) of dioxin, 1-4 pg/kg body weight per day, i.e. 7x10 −11 to 2.8x10 −10 g per 70-kg person per day, to allow ...
DEQ’s limits on PFAS are being opposed by the NC Chamber, while Triad-area utilities are opposed to 1,4-dioxane limits in surface water.