| Parameters | Maximum Concentration(1) | Averaging Period(2) | Monitoring Method(3) |
| (mg/m3 unless otherwise indicated) | | |
| Carbon monoxide | 55 | 4-hr RA | C |
| Hydrogen chloride | 50 | 8-hr RA | C |
| Hydrogen fluoride | 4 | A | A |
| Nitrogen oxides (as NO2) | 380 | A | A |
| Opacity | 5% | 1-hr RA | C |
| Particulate matter | 20 | A | A |
| Sulphur dioxide | 180 | A | A |
| Total hydrocarbon (as methane) | 32 | A | A |
| Trace metals (4): | | | |
| Class 1 | 3.6 | | A |
| (lead, antimony, copper, manganese, vanadium, zinc) | 0.7 | A | A |
| Class II | 0.15 | A | A |
| (arsenic, chromium, cobalt, nickel, selenium, tellurium) | | | |
| Class III | | | |
| (thallium, cadmium, mercury) | | | |