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TRANSPORTATION ENERGY DATA BOOK: EDITION 20 - Center for ...

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Source<br />

Chapter 4<br />

Criteria Pollutants<br />

Summary Statistics from Tables in this Chapter<br />

Table 4.1 Transportation’s share of U.S. emissions, 1998<br />

co 78.6%<br />

No,<br />

voc<br />

PM-1 0<br />

PM-2.5<br />

SO2<br />

NH,<br />

Table 4.10 Transportation’s share of lead emissions<br />

1970<br />

1998<br />

<strong>TRANSPORTATION</strong><strong>ENERGY</strong><strong>DATA</strong>BOOIC <strong>EDITION</strong>~O-<strong>20</strong>00<br />

53.4%<br />

43.5%<br />

2.1%<br />

7.2%<br />

7.2%<br />

5.2%<br />

82.3%<br />

13.1%<br />

4-l

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