Table 5. Components and Content of the Tar, wt %.
| component | content |
|---|---|
| heavy polycyclic aromatic hydrocarbons | 1.386 |
| light polycyclic aromatic hydrocarbons | 88.778 |
| light aromatic hydrocarbons and others | 9.836 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.