N.Y. Comp. Codes R. & Regs. Tit. 6 § 231-13.7 - Table 7 - Federal class I variance maximum allowable increase concentrations

Contaminant	Maximum allowable increase (micrograms per cubic meter)
Particulate Matter:
PM-10, annual arithmetic mean1	17
PM-10, 24-hr maximum1	30
PM-2.5, annual arithmetic mean1	4
PM-2.5, 24 hr maximum1	9
Sulfur dioxide:
Annual arithmetic mean	20
24-hr maximum	91
3-hr maximum	325
Nitrogen dioxide:
Annual arithmetic mean	25

¹ - both filterable and condensable fractions are to be included (see definitions of PM-10 and PM-2.5 in Part 200 of this Title).

Notes

N.Y. Comp. Codes R. & Regs. Tit. 6 § 231-13.7

Amended New York State Register February 10, 2021/Volume XLIII, Issue 06, eff. 2/25/2021