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CRC Report No. A-34 - Coordinating Research Council

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SCE (ppbC)<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

30<br />

25<br />

Onroad Mobile Gasoline non-Catalyst Exhaust (hot stabilized)<br />

liquid gasoline<br />

140<br />

120<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

PAMS concentration (ppbC)<br />

SCE (ppbC)<br />

20<br />

15<br />

10<br />

5<br />

0<br />

SCE (ppbC)<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

gasoline vehicle evaporative loss<br />

4<br />

3.5<br />

3<br />

2.5<br />

2<br />

1.5<br />

1<br />

0.5<br />

0<br />

exper.<br />

SCE<br />

6hr avg<br />

on-road diesel<br />

9 10 11 12 9 10 11 12 9 10 11 12 9 10 11 12<br />

0 0 0 0 6 6 6 6 12 12 12 12 18 18 18 18<br />

Mean source contribution estimates at Van Nuys by 6-hour period. Start hour (PDT) is indicated.<br />

H:\crca<strong>34</strong>-receptor\report\Final\appendixB.doc B-25

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