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Table 1 Four fluorescence components decomposed from surface water (SW), sediment pore water (SDPW), and soil pore water (SPW) of the Qingshui Stream of Chongqing, China

From: Linking biological toxicity and the spectral characteristics of contamination in seriously polluted urban rivers

Samples Ex/Em/(nm) Component Wavelength in the references/(Ex/Em/nm)
SDPW of site 1–5; SW of site 5 225/325, < 225/320, < 250/350 C1: Tryptophan-like < 240/330-370 [26, 27]
SDPW/SPW/SW of site 1–5 275/300, 275/340, 280/320, 280/325, 280/330, 280/340, 280/350 C2: Protein-like 240-280/300-350 [28]
SW of site 1–4 200/380, < 200/380, < 225/380, 240/400, 240/390 C3: Humic-like (Ultraviolet A) < 250/370-430 [26, 27, 29]
SPW of site 2–5 250/375, 250/380, 245/400, 250/400, 270/370, C4: Fulvic acid-like 240-270/370-440 [29]