| Taking the source water of Yangcheng Lake as the research object, 10 typical odor compounds 2 methylisoborneol(2 MIB), geosmin（GSM）, 2,4,6 trichloroanisole（2,4,6 TAC）, 2,3,4 trichloroanisole（2,3,4 TAC）, 2,3,6 trichloroanisole（2,3,6 TAC）, 2 isopropyl 3 methoxypyrazine（IPMP）, 2 isobutyl 3 methoxypyrazine（IBMP）, β cyclocitral, β ionone, isophorone in water were detected by solid phase microextraction (SPME) GC MS. The possible sources of algae were analyzed. Based on the dominant algae species in source water of Yangcheng Lake from January to December 2018, a multiple linear regression model with the above odor compounds as variables was established. Results showed that 2 MIB, GSM, β cyclocitral, β ionone and isophorone had strong correlation with Melosira, Synedra, Anabaena, Chroococcus, Oscillatoria， Microcystis, Aphanizomenon in source water. |
