Formation of Halogenated C - , N - DBPs from Chlor ( am ) ination 1 and UV Irradiation of Tyrosine in Drinking Water

a State Key Laboratory of Pollution Control and Resources Reuse, College of 4 Environmental Science and Engineering, Tongji University, Shanghai, 200092, China 5 b Metropolitan Water District of Southern California, 700 Moreno Avenue, La Verne, 6 California 91750-3399, USA 7 c Department of Civil and Environmental Engineering, Imperial College London, London, 8 SW7 2AZ, UK 9 10 11 12 *Corresponding author. 13 Address: State Key Laboratory of Pollution Control and Resources Reuse, Tongji 14 University, Mingjing Building No. 601, 1239 Siping Road, Yangpu District, Shanghai, 15 200092, China 16 Tel: +86 21 65982691 17 Fax: +86 21 65986839 18 E-mail: [email protected], [email protected]. 19 20 21 Abbreviations: 22 Alanine –Ala; aspartic acid –Asp; carbonaceous disinfection by-products –C-DBPs; 23 chloroform –CF; chloral hydrate –CH; 4-chlorophenol –4-CP; cyanogen chloride –CNCl; 24 1,1-dichloropropanone –1,1-DCP; disinfection by-products –DBPs; dichloroacetic acid 25 –DCAA; dichloroacetamide –DCAcAm; dichloroacetonitrile –DCAN; dichloromethane 26 –DCM; 2,4-dichlorophenol –2,4-DCP; dissolved organic carbon – DOC; dissolved organic 27 nitrogen – DON; gas chromatography/mass spectrometry -GC/MS; haloacetic acids – 28 HAAs; haloacetamides –HAcAms; haloacetonitriles –HANs; halonitromethanes –HNMs; 29 4-hydroxy-benzyl-cyanide –4-HBC; nitrogenous disinfection by-productsN-DBPs; natural 30 organic matter – NOM; purge & trapP&T; trichloroacetic acid –TCAA; trichloroacetyl 31 chloride –TCAC; trichloroacetamide –TCAcAm; trichloroacetonitrile –TCAN; 32 trichloronitromethane –TCNM; 2,4,6-trichlorophenol –2,4,6-TCP; 1,1,1-trichloropropanone 33 –1,1,1-TCP; trihalomethanes –THMs; tyrosine –Tyr; U.S. Environmental Protection 34 Agency –USEPA; water treatment plants–WTPs. 35