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.
Number of airports, estimate of lead emissions from aircrafts, and number of blood lead screens among children 9 months to 7 years of age in study counties, North Carolina (1995–2003).
| County | No. of airports | Estimated lead emissions (tons/year) | No. of blood lead screens | |||
|---|---|---|---|---|---|---|
| Carteret | 8 | 0.224 | 3,333 | |||
| Cumberland | 11 | 0.238 | 14,854 | |||
| Guilford | 10 | 0.369 | 27,043 | |||
| Mecklenburg | 10 | 0.894 | 47,510 | |||
| Union | 14 | 0.285 | 3,387 | |||
| Wake | 13 | 0.624 | 29,070 |
