40 C.F.R. § 52.2721
Current through September 30, 2024
The Puerto Rico plan was evaluated on the basis of the following classifications.
| Air quality control region | Pollutant | ||||
| Particulate matter | Sulfur oxides | Nitrogen dioxide | Carbon monoxide | Photochemical oxidants (hydrocarbons) | |
| Puerto Rico | IA | IA | III | III | III |
40 C.F.R. §52.2721