Lines 33: those show -> compounds that have
Lines 35: those show -> compounds that have a
Sentence on line 42 in spring, in fall, in winter, in summer should be at the end of each statement
Line 71: some of the papers by Lin reported contribution of resolved compounds to the overall absorption coefficient that was considerably higher than reported here. It might be worth citing these numbers. For example, Lin (2017) attributes about 50% of the total absorption to nitroaromatics. Do you have any suggestions why his numbers could be so different from numbers reported here?
Line 164-165: are -> were
Line 178: LOD (limit of detection) is a more common term
Line 216: compounds with high conjugation degree and strong light-absorbing capability (e.g., PAHs) at longer wavelength-> conjugated compounds that absorb strongly at longer wavelengths (e.g., PAHs)
Figure 1 appears very grainy on my computer, I would recommend uploading a higher resolution version in the final revision
Figure 2: the red box showing results of this study and black dotted lines separating different types of sites may be hard to see; it may be worth making them thicker