The following table presents the latest dates by which the national standards are to be attained. The table reflects the new information presented in the approved Massachusetts plan.
Air quality control region | Pollutant | |||||
SO2 | PM10 | NO2 | CO | O3 | ||
Primary | Secondary | |||||
AQCR 42: Hartford-New Haven-Springfield Interstate Area (See 4 0 CFR 81.26 ) | (a) | (b) | (a) | (a) | (a) | (c) |
AQCR 117: Berkshire Intrastat Area (See 4 0 CFR 81.141 ) | (a) | (b) | (a) | (a) | (a) | (c) |
AQCR 118: Central Mass Intrastate Area (See 4r 0 CFR 81.142 ) | (a) | (b) | (a) | (a) | (a) | (d) |
AQCR 119: Metropolitan Boston Intrastate Area (See 4 0 CFR 81.19 ) | (a) | (b) | (a) | (a) | (a) | (d) |
AQCR 120: Metropolitan Providence Interstate Area (See 4 0 CFR 81.31 ) | (a) | (b) | (a) | (a) | (a) | (d) |
AQCR 121: Merrimack Valley-Southern NH Interstate Area (See 4 0 CFR 81.81 ) | (a) | (b) | (a) | (a) | (a) | (d) |
40 C.F.R. §52.1127