10

100

1000

10000

100000

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

Conc. (ug/L)

Fraction of Sites

Benzene in Southern California

Benzene Expected
ug/L

station number YEAR ID BENZENE_CO

211 1 217 2001 083003124T 80000

210 0.995261 74 2001 083000720T 50000

209 0.990521 76 2001 083000764T 44000

208 0.985782 99 2001 083001073T 43200

207 0.981043 116 2001 083001490T 39100

206 0.976303 21 2001 083000258T 39000

205 0.971564 59 2001 083000575T 38000

204 0.966825 115 2001 083001246T 37000

203 0.962085 58 2001 083000574T 35000

202 0.957346 61 2001 083000585T 35000

201 0.952607 131 2001 083001704T 32000

200 0.947867 237 2001 083003813T 31000

199 0.943128 139 2001 083001892T 31000

198 0.938389 19 2001 083000253T 30000

197 0.933649 132 2001 083001710T 30000

196 0.92891 177 2001 083002439T 29100

195 0.924171 45 2001 083000429T 28000

194 0.919431 199 2001 083002853T 26800

193 0.914692 249 2001 083300823T 24800

192 0.909953 14 2001 083000204T 24000

191 0.905213 84 2001 083000815T 24000

190 0.900474 142 2001 083001923T 24000

189 0.895735 197 2001 083002800T 23500

188 0.890995 167 2001 083002155T 23000

187 0.886256 202 2001 083002862T 22000

186 0.881517 143 2001 083001931T 22000

185 0.876777 101 2001 083001075T 21900

184 0.872038 184 2001 083002579T 21500

183 0.867299 95 2001 083000980T 21000

182 0.862559 35 2001 083000293T 21000

181 0.85782 119 2001 083001255T 21000

180 0.853081 48 2001 083000462T 20000

179 0.848341 230 2001 083003311T 20000

178 0.843602 24 2001 083000266T 20000

177 0.838863 175 2001 083002370T 19300

176 0.834123 64 2001 083000637T 18800

175 0.829384 183 2001 083002567T 18200

174 0.824645 220 2001 083003165T 18000

173 0.819905 189 2001 083002664T 18000

172 0.815166 195 2001 083002790T 17800

171 0.810427 135 2001 083001811T 16100

170 0.805687 140 2001 083001900T 16000

169 0.800948 9 2001 083000051T 16000

168 0.796209 155 2001 083002082T 16000

167 0.791469 27 2001 083000270T 16000

166 0.78673 68 2001 083000657T 16000

165 0.781991 10 2001 083000102T 15600

164 0.777251 216 2001 083003104T 15300
163 0.772512 153 2001 083002067T 15000

162 0.767773 170 2001 083002277T 15000

161 0.763033 260 2001 083302499T 14800

160 0.758294 299 2001 6B3600840T 14000

159 0.753555 18 2001 083000251T 14000

158 0.748815 212 2001 083003043T 14000

157 0.744076 151 2001 083002045T 14000

156 0.739336 291 2001 083601370T 13900

155 0.734597 72 2001 083000705T 13000

154 0.729858 201 2001 083002860T 12300

153 0.725118 253 2001 083301612T 12100

152 0.720379 215 2001 083003094T 12000

151 0.71564 263 2001 083302921T 12000

150 0.7109 211 2001 083003042T 12000

149 0.706161 43 2001 083000410T 11300

148 0.701422 100 2001 083001074T 11200

147 0.696682 103 2001 083001078T 11000

146 0.691943 87 2001 083000826T 11000

145 0.687204 81 2001 083000804T 11000

144 0.6824644 2001 083000040T 10000.1

143 0.677725 114 2001 083001459T 10000

142 0.672986 163 2001 083002237T 10000

141 0.668246 56 2001 083000569T 10000

140 0.663507 225 2001 083003225T 9500

139 0.658768 108 2001 083001138T 9300

138 0.654028 196 2001 083002793T 8900

137 0.649289 241 2001 083008888? 8810

136 0.64455 77 2001 083000778T 8600

135 0.63981 12 2001 083000147T 8500

134 0.635071 86 2001 083000824T 8160

133 0.630332 97 2001 083000997T 8100

132 0.6255923 2001 083000038T 7700

131 0.620853 274 2001 083303278T 7560

130 0.616114 60 2001 083000582T 7500

129 0.611374 39 2001 083000369T 7200

128 0.606635 63 2001 083000636T 7140

127 0.601896 298 2001 083603469T 7100

126 0.597156 227 2001 083003262T 7000

125 0.592417 75 2001 083000721T 6800

124 0.587678 104 2001 083001085T 6610

123 0.582938 273 2001 083303275T 6520

122 0.578199 125 2001 083001330T 6500

121 0.57346 235 2001 083003612T 5760

120 0.56872 52 2001 083000487T 5700

119 0.563981 44 2001 083000420T 5600

118 0.559242 219 2001 083003144T 5600

117 0.554502 111 2001 083001219T 5600

116 0.549763 182 2001 083002566T 5420

115 0.545024 239 2001 083003860T 5400

114 0.540284 270 2001 083303188T 5200

113 0.535545 54 2001 083000504T 5200

112 0.530806 138 2001 083001867T 4900
111 0.526066 49 2001 083000464T 4900

110 0.521327 279 2001 083303478T 4600

109 0.516588 129 2001 083001381T 4400

108 0.511848 16 2001 083000246T 4400

107 0.507109 89 2001 083000840T 3900

106 0.50237 149 2001 083002015T 3900

105 0.49763 30 2001 083000277T 3600

104 0.492891 164 2001 083002247T 3560

103 0.488152 147 2001 083002009T 3500

102 0.483412 92 2001 083000945T 3200

101 0.478673 158 2001 083002163T 3200

100 0.473934 37 2001 083000354T 3100

99 0.469194 145 2001 083001980T 3000

98 0.464455 268 2001 083303120T 2900

97 0.4597165 2001 083000045T 2900

96 0.454976 210 2001 083003035T 2800

95 0.450237 293 2001 083601595T 2800

94 0.445498 208 2001 083002966T 2700

93 0.440758 251 2001 083301291T 2700

92 0.436019 34 2001 083000287T 2500.1

91 0.43128 120 2001 083001528T 2500

90 0.42654 207 2001 083002956T 2440

89 0.421801 133 2001 083001779T 2400

88 0.417062 243 2001 083300247T 2400

87 0.412322 284 2001 083600042T 2400

86 0.407583 102 2001 083001076T 2380

85 0.402844 256 2001 083302233T 2300

84 0.398104 128 2001 083001687T 2100

83 0.393365 146 2001 083002007T 2100

82 0.388626 106 2001 083001092T 2100

81 0.383886 134 2001 083001784T 2100

80 0.3791476 2001 083000046T 2100

79 0.374408 154 2001 083002073T 2060

78 0.369668 62 2001 083000619T 2000

77 0.364929 286 2001 083600381T 2000

76 0.36019 42 2001 083000409T 1900

75 0.35545 11 2001 083000142T 1900

74 0.350711 246 2001 083300466T 1900

73 0.345972 203 2001 083002869T 1840

72 0.341232 174 2001 083002365T 1630

71 0.336493 287 2001 083601236T 1600

70 0.331754 214 2001 083003053T 1600

69 0.327014 245 2001 083300360T 1600

68 0.322275 66 2001 083000639T 1570

67 0.317536 107 2001 083001112T 1560

66 0.312796 13 2001 083000197T 1500

65 0.308057 173 2001 083002357T 1500

64 0.303318 200 2001 083002854T 1400

63 0.298578 276 2001 083303324T 1300.1

62 0.293839 123 2001 083001309T 1300.1

61 0.2891 124 2001 083001598T 1300

60 0.28436 148 2001 083002014T 1100
59 0.279621 20 2001 083000256T 1100

58 0.274882 36 2001 083000339T 1100

57 0.270142 141 2001 083001916T 1100

56 0.265403 137 2001 083001849T 1000.1

55 0.260664 181 2001 083002552T 1000

54 0.255924 144 2001 083001946T 991

53 0.251185 122 2001 083001564T 952

52 0.246445 109 2001 083001181T 942

51 0.241706 242 2001 083099999T 930

50 0.236967 98 2001 083001054T 882

49 0.232227 213 2001 083003048T 860

48 0.227488 180 2001 083002497T 800.1

47 0.222749 236 2001 083003785T 790

46 0.218009 192 2001 083002756T 760

45 0.21327 233 2001 083003520T 750

44 0.208531 38 2001 083000362T 580

43 0.203791 71 2001 083000704T 570

42 0.199052 161 2001 083002226T 550

41 0.194313 150 2001 083002016T 500.1

40 0.189573 23 2001 083000264T 500.1

39 0.184834 283 2001 083303824T 500.1

38 0.180095 228 2001 083003281T 500.1

37 0.175355 136 2001 083001823T 472

36 0.170616 82 2001 083000812T 470

35 0.165877 127 2001 083001374T 430

34 0.161137 73 2001 083000706T 420

33 0.156398 126 2001 083001629T 420

32 0.151659 205 2001 083002929T 402

31 0.146919 171 2001 083002301T 390

30 0.14218 88 2001 083000827T 350

29 0.137441 41 2001 083000404T 300.1

28 0.132701 166 2001 083002253T 300.1

27 0.127962 31 2001 083000281T 300

26 0.123223 105 2001 083001091T 280

25 0.118483 178 2001 083002441T 279

24 0.113744 206 2001 083002942T 263

23 0.109005 204 2001 083002893T 250.1

22 0.104265 33 2001 083000286T 250.1

21 0.099526 267 2001 083303117T 230

20 0.094787 193 2001 083002773T 210

19 0.090047 275 2001 083303308T 200

18 0.085308 255 2001 083302091T 183

17 0.080569 250 2001 083301196T 170

16 0.075829 160 2001 083002225T 160

15 0.07109 57 2001 083000573T 150

14 0.066351 94 2001 083000973T 150

13 0.061611 70 2001 083000703T 140

12 0.056872 257 2001 083302243T 130.1

11 0.052133 234 2001 083003521T 130

10 0.047393 80 2001 083000801T 120 9 0.042654 93 2001 083000958T 100.1 8 0.037915 226 2001 083003230T 100.1
7 0.033175 28 2001 083000272T 100.1 6 0.028436 65 2001 083000638T 83 5 0.023697 112 2001 083001433T 74 4 0.018957 186 2001 083002609T 73 3 0.014218 288 2001 083601340T 72 2 0.009479 51 2001 083000479T 69 1 0.004739 297 2001 083603227T 53
ug/L ug/L

MTBE_CONC_ TBA_CONC_

Falta

5200 37,100

1500 1100 37,100

7300 496 37,100

499000 121000 37,100

35200 37,100

5400 37,100

2500 120 37,100

73000 6100 37,100

91000 150000 37,100

90000 57000 37,100

92000 99000 37,100

620000 66000 37,100

65000 22000 37,100

31000 63000 37,100

22000 12000 37,100

180000 14500 37,100

260000 70000 37,100

1210000 26000 37,100

1060000 323000 37,100

1900000 37,100

44000 16000 37,100

25000 2500 37,100

173000 17200 37,100

21000 58000 37,100

23000 19000 37,100

5000.1 10000.1 37,100

1080 6400 37,100

14500 15400 37,100

17000 45000 37,100

14000 10000.1 37,100

2100 570 37,100

70000 56000 37,100

15000 5900 37,100

2100 10000.1 37,100

99000 6990 37,100

294000 90100 37,100

17300 2480 37,100

43000 110000 37,100

16000 1300 37,100

890 2250 37,100

605000 403000 37,100

85000 52000 37,100

84000 110000 37,100

47000 24000 37,100

6700 620 37,100

280 1800 37,100

3030 2440 37,100

83900 9260 37,100
29000 2000 37,100

13000 5000.1 37,100

12100 1020 37,100

9900000 37,100

13000 13000.1 37,100

8600 970 37,100

470 45 37,100

7130 59700 37,100

2700 2800 37,100

18900 12000 37,100

851000 34300 37,100

1100000 9400 37,100

62000 170000 37,100

34000 160000 37,100

828 950 37,100

25000 9230 37,100

97000 89000 37,100

14000 2300 37,100

8000 38000 37,100

540000 460000 37,100

2800000 37,100

17000 4100 37,100

4400 4120 37,100

8600 9200 37,100

33000 12000 37,100

42100 52000 37,100

19500 1150 37,100

50000 82000 37,100

3300 57000 37,100

84300 273000 37,100

850 580 37,100

160000 240000 37,100

17400 593 37,100

12000 37,100

7100 63000 37,100

11600 2980 37,100

49000 15000 37,100

62000 20000 37,100

40000 50000 37,100

794 243 37,100

247 200 37,100

340000 50.1 37,100

540360 37,100

1900 300 37,100

7600 4100 37,100

5100 12000 37,100

300 46000 37,100

13600 3180 37,100

37000 150000 37,100

2800 10000.1 37,100

840 2900 37,100

81000 160000 37,100
23000 5600 37,100

240000 200000 37,100

7900 1000 37,100

2100 2400 37,100

12000 6400 37,100

6800 27000 37,100

8000 20000 37,100

8940 1060 37,100

120000 110000 37,100

2200 940 37,100

280 80000 37,100

7900 10000 37,100

350 370 37,100

93000 47000 37,100

290 1700 37,100

25000 4400 37,100

25000 37,100

9000 760000 37,100

3600 2500.1 37,100

550000 2000000 37,100

540 400 37,100

76800 4790 37,100

16000 410000 37,100

3900 10000.1 37,100

2400 4500 37,100

1880 12 37,100

7200 2500.1 37,100

22000 95000 37,100

22000 26000 37,100

13000 16000 37,100

8900 4800 37,100

1200 25.1 37,100

1190 10.1 37,100

160000 120000 37,100

5000.10 37,100

12300 7920 37,100

1600 5200 37,100

4400 37,100

401 78 37,100

335 262 37,100

790000 37,100

200000 37,100

680 77 37,100

21400 3100 37,100

11000 8660 37,100

290000 37,100

500.1 120 37,100

46000 2100 37,100

4300000 37,100

200000 370000 37,100

37000 37000 37,100

21000 1400 37,100
3100 21000 37,100

2200 34000 37,100

460 140 37,100

160000 1200 37,100

33000 8600 37,100

5390 1660 37,100

10400 9790 37,100

13300 59100 37,100

620 50.1 37,100

358 2710 37,100

400000 27000 37,100

40000 9100 37,100

160000 25000.1 37,100

110000 16000 37,100

26000 120000 37,100

120000 400000 37,100

5300 11000 37,100

13000 50000.1 37,100

800000 1100000 37,100

390000 85000 37,100

130000 27000 37,100

72000 13000 37,100

6560 120000 37,100

3300 570 37,100

2700 180000 37,100

19000 24000 37,100

3000 1800 37,100

7220 2350 37,100

3100 37,100

460 600 37,100

370000 170000 37,100

34000 45000 37,100

1700 1000.1 37,100

3900 41000 37,100

3330 2580 37,100

7680 501 37,100

760000 370000 37,100

100000 110000 37,100

250.10 37,100

900 840 37,100

11000 2200 37,100

14100 88 37,100

8200 400 37,100

1300 540000 37,100

1800 500.1 37,100

1500 75000 37,100

6400 5500 37,100

200000 13000.1 37,100

11000 37,100

15000 7000 37,100

95000 13000 37,100

27000 79000 37,100
3900 180000 37,100

2830 4690 37,100

1780 101 37,100

43000 54000 37,100

10000 37,100

460 910 37,100

47000 14000 37,100