Examining the Impact of Nitrous Acid Chemistry on Ozone and PM over the Pearl River Delta Region

Table 3

The largest enhancement in morning (8 am—noon) O₃, daily maximum O₃, and daily mean PM_2.5 in the modeling domain due the additional HONO sources (case HONO S/V subtract case CB05).

Date	The largest enhancement in morning O3 (ppbV)	The largest enhancement in daily maximum 8-hour O3 (ppbV)	The largest enhancement in daily PM10 (μg/m^3)
Oct 22, 2004	4	4	4
Oct 23, 2004	5	4	7
Oct 24, 2004	4	3	6
Oct 25, 2004	5	3	9
Oct 26, 2004	3	3	6
Oct 27, 2004	3	3	8
Oct 28, 2004	4	5	17
Oct 29, 2004	7	7	17
Oct 30, 2004	6	6	7
Oct 31, 2004	9	7	6
Nov 1, 2004	3	5	15