The absorbance of the working standards each has different concentrations (0.04, 0.20, 0.40, 0.60, 0.80, 1.00 2.00, 3.00, 4.00, 5.00, and 6.00) ng/mL was determined using a UV-Visible spectrophotometer and calibration curves were generated from the absorbance data by plotting the graph of absorbance against concentration (ng/mL) as shown in Figures &. Using linear regression analysis, concentration equations y = 0.38x -0.236 (equation in figure ) and y = 0.161x + 0.033 (equation in figure ) were generated both with a very good correlation coefficient of R 2 = 0.996 from which the concentration of BPA in each sample was calculated as presented on table 1 and 2. A blank sample was analyzed and was confirmed to be BPA-free. Descriptive statistics of mean and standard deviation were used to obtain the concentration of BPA in each sample as readings were taken in triplicate. Table . BPA concentrations in one brand of PC drinking water bottles (ng/mL). Key: values are mean ± standard deviations of three determinations SML of BPA set by EFSA in 2018 is 0.05 mg/L corresponding to TDI of 4 µg/kg bw/day Discussion BPA is a prototypic EDC that its toxicological impacts on human health have been the subject of debate over the last few decades as a result of its deleterious effect on human health. Studies confirm the presence of BPA in human serum, amniotic fluid, placental tissue and umbilical cord blood, and its presence in human tissues have been linked to the oral ingestion of foods contaminated with BPA due to its migration from PC bottles into foods.