Pollutants Slope Offset r2 POL 53.9 0.06 99.99 CAF 28.2 0.05 99.99 OFX 43.8 -1.64 99.89 SA 48.7 0.03 99.99 CBZ 64.0 2.14 99.94 BPA 53.0 0.75 99.90 OES 10.6 -0.13 99.97 ACB 39.5 0.59 99.97 MCP 42.0 0.50 99.98 DFN 37.5 0.16 99.97 IBP 17.3 0.11 99.99 PCP 47.4 0.27 99.96 4NP 5.5 -0.45 94.75

Table 3: Regression analysis of the calibration data for each compound of the mixture at 230 nm.