In contrast to the analysis above, other authors recently concluded the risk of TFA to humans and the environment is de minimis (i.e. negligible) based on examples like a projected concentration of TFA in the ocean of 0.2 µg/L by 2100 compared to the NOEC in the algae R. subcapitata of 2500 µg/L 109,110 , as well the median human serum levels of 8.46 µg/L in the serum and staff of Nankai University being 4 orders of magnitude below effect doses in rats.