Population exposure to PAHs in Tianjin area

25 7 2005 7 Acta Scientiae Circumstantiae Vol. 25,No. 7 Jul., 2005,,,. [J ].,2005,25 (7) :989-993 LI Xinrong, LI Bengang, TAO Shu, et al. Population exposure to PAHs in Tianjin area[j ]. Acta Scientiae Circumstantiae,2005,25 (7) :989-993 1, 1, 1, 3, 1, 1, 1, 1, 1, 2 11,, 100871 21, 100050 :2004210229 :2005204215 :2005204225 : PAHs, -, 16 PAHs., 313 g kg - 1 d - 1, 413 318 311 g kg - 1 d - 1. 75 %, 20 %, 5 %. 8 PAHs 0138 g kg - 1 d - 1, 3 0148 0145 0136 g kg - 1 d - 1. : ; ; ; :025322468 (2005) 0720989205 :X80214 :A Population exposure to PAHs in Tianjin area LI Xinrong 1, LI Bengang 1, TAO Shu 1, 3, GUO Miao 1, CAO Jun 1, WANG Xuejun 1, LIU Wenxin 1, XU Fuliu 1, WU Yongning 2 1. Laboratory for Earth Surface Processes, College of Environmental Sciences, Peking University, Beijing 100871, China 2. Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050, China Received 29 October 2004 ; received in revised form 15 April 2005 ; accepted 25 April 2005 Abstract : The population exposure to PAHs in Tianjin area was estimated based on field test data and other data from the literature. A multimediaπmulti2pathway human exposure model was employed to calculate the populations Chronic Daily Intake (CDI) of PAHs. The population s lifelong CDI was 313 g kg - 1 d - 1 in this area. And the daily exposures of child, youth and adult were 413, 318, and 311 g kg - 1 d - 1, respectively. Diet exposure was the most important route, accounting for around 75 % of total dose. Respiration ranked second, and contributed 20 % of the total dose. Lifelong CDI of eight carcinogenic PAHs was 0138 g kg - 1 d - 1, and it were 0148, 0145 and 0136 g kg - 1 d - 1 respectively in the three sub2populations. Keywords :population exposure ; PAHs ; food ; respiration ( PAHs), [1 ].,., -.,, (NHEXAS) 46 [2 ]. Van den Berg [3 ]., 16 PAHs ( PAH 16 ),. 1 EPA [4 ].,, : (40332015,40024101), (2003CB415004), : (1975 ),, ; 3 ( ) Foundation item :National Scientific Foundation of China (No. 40332015, 40024101) ; National Basic Research Program(No. 2003CB415004) Biography :LI Xinrong(1975 ), female, Ph. D. candidate ; 3 Corresponding author

990 25,.,, (0 6 ) (6 18 ) ( > 18 ) 3., 4 14 3 [10 ], [4,11 ].,.,, 50.,. 100 %,.,. 2 211,, 3 PAH 16 413 318 311 g kg - 1 d - 1. 313 g kg - 1 d - 1.,.., 77 g d - 1 148 g d - 1, 177 g d - 1. 8 PAHs (PAH 8 ), 0138 g kg - 1 d - 1. 0148 0145 0136 g kg - 1 d - 1. 816 1715 2014 g d - 1. PAH 8 (3112, ( ) ( ) ( ) ( ). g d - 1 ) [12 ]. 212 1 PAH 16 PAH 8. 70,. 2, (13 ) (9 ), 22, [ 5 ], [1 ], [6 ], 5. [7 9 ]. 2. 1, PAHs. 75 %. 3 79 % 75 % 74 %.,, PAH 16 3813 %., ( PAHs ).,, 1314 %. 1514 %.,,. (24 ) (12 ). 1 PAH 16 PAH 8 (a) PAH 16 ; (b) PAH 8 Fig. 1 Contributions of various pathways to Tianjin s population exposure of PAH 16 and PAH 8 1 PAH 8. PAH 16,. PAH 8,

7 : 991, 617 % 815 %., 912 %. PAH 16, PAH 8,3 40 %. PAH 8, 10 [8 ]. 213 PAHs,. 2 16 PAH. 3., 2 16 PAH Fig. 2 Life2time average exposure of Tianjin s residence to 16 PAH compounds,,., 60 %,, 11 % 6 %. 3 311 Van den Berg 11 PAHs 1 [3 ].,Van den Berg,., [1 ]., PAHs [13 ].,. 1 PAHs.,.,, 80, 2000. 1991,. 1 PAHs 1) Table 1 Comparison of dietary intakes of PAHs between Tianjin and other countries PAHs (1983) [15 ] (1990) [13 ] (1991) ( ) [9 ] (2000) [16 ] (Nap) 3018 72. 7 0172 0. 93 (Any) 110 1. 7 0136 0. 46 (Ane) 116 3. 3 0106 0. 08 (Fle) 411 7. 7 0117 0. 24 (Phe) 819 16. 8 0187 4. 51 2100 1176 2. 37 (Ant) 118 3. 4 0103 0. 64 5160 0108 0. 10 (Fla) 312 6. 0 0199 0199 1. 66 4130 0171 0. 98 (Pyr) 114 2. 3 1110 4100 1108 1. 47 (a) (Baa) 011 0. 3 0122 0120 0. 36 0114 0127 0. 36 (Chr) 018 1. 6 0150 0186 1. 53 0190 0149 0. 64 (b) (Bbf) 217 4. 4 0118 0131 0. 36 1100 0117 0. 22 (k) (Bkf) 015 0. 9 0106 0110 0. 14 0130 0108 0. 11 (a) (Bap) 018 2. 0 0125 0112 0. 29 0136 0110 0. 13 (1,2,32cd) ( I1p) 011 0. 2 0108 0. 46 0131 0104 0. 05 (a,h) (Daa) 215 7. 6 0103 0110 0104 0. 05 (ghi) (Bgp) 012 0. 4 0121 0120 0. 36 7160 0119 0. 25 PAHs 6015 131. 4 3154 3176 10. 31 2616 6133 8. 42 2) 1212 25. 5 1911 36. 0 2310 45. 9 6015 131. 4 :1) ;2)

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