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. 2021 May 13;21(10):3387. doi: 10.3390/s21103387

Table 3.

Color index (CI) values (multiplied by 103) for oligotrophic ocean waters calculated for different combinations of λblue, λgreen and λred and compared for natural unpolluted water and polluted by three kinds of dispersed oils: biodiesel BD, lubricant oil CL and crude oil FL.

Wavelengths, nm Color Index CI × 103 Relative Difference, %
λblue λgreen λred BD CL FL Natural Unpolluted Water BD CL FL
440 555 670 −5.95 −5.46 0.67 −3.11 −91 −76 121
440 555 675 −6.18 −5.74 0.51 −3.21 −92 −79 116
440 550 670 −6.03 −5.36 0.81 −3.19 −89 −68 125
440 550 675 −6.25 −5.63 0.66 −3.29 −90 −71 120
445 555 670 −5.59 −5.13 0.45 −2.87 −95 −79 116
445 555 675 −5.82 −5.39 0.30 −2.97 −96 −82 110
445 550 670 −5.66 −5.02 0.59 −2.94 −92 −70 120
445 550 675 −5.87 −5.27 0.44 −3.04 −93 −74 114