"People living in places with high proportions of black, mixed or 'other' ethnic groups are more likely to be exposed to above EU NO2 limit value concentrations than those in areas with a high proportion of white people," said the Aether study.
E-value concentrations were compared with fractions extracted using a modified Tessier sequential extraction.
The IC50 values (concentrations of 50%% inhibition of cell viability) were determined by the relative survival curve.
Various experimental parameters such as supporting electrolytes, pH values, concentrations of Bi3+, deposition potentials and deposition times were optimized.
Sample size could be as small as 400 g with a negligible change in sample variability, and without a biologically significant change in nutritive value concentrations.
An NR80 value (concentrations resulting in 80% viability of the RTL-W1 cells) of 2.1 mg/L was obtained for the biocide TCC (Figure 2).
The IC50 values (concentrations of each indole compound required to reduce oxidative DNA damage by 50%) are given as means + standard deviations for N = 6 different determinations.
However, due to the low D-values, concentrations higher than 0.4% should be tested to accomplish the set aim.
The IC50 values (concentrations needed to kill 50%% of tumor cells) were determined on B16F10-Nex2, ranging from 6.9 to 25.4 μM (Table 2).
Dose response curves were plotted and the IC50 values (concentrations at which cellular effects are inhibited by 50%) were calculated using a linear regression analysis.
