Site | Point Sources | Mobile Sources | Area Sources |
Houston Downtown | 21.45% ± 7.37% | 20.60% ± 6.89% | 5.21% ± 1.59% |
Houston Ship Channel | 27.51% ± 3.53% | 18.27% ± 2.22% | 4.19% ± 1.65% |
Galveston | 30.30% ± 9.31% | 18.61% ± 7.43% | 3.72% ± 1.52% |