Date	NO₃ (µmol N/l) (A)	Denitrified N₂ (µmol∙N∙m⁻²∙h⁻¹)					N (% d⁻¹)^c
Date	NO₃ (µmol N/l) (A)	Diffusive estimated by us^a (B)		Ebullitive estimated by us^b (C)	B + C	Smith et al. [30]	Estimated by us		Measured by Smith et al. [30]
Sugar Creek
Sep 1999	43	83 - 123	52		135 - 176	76 ± 78	25 - 32		14
May 2000	717	484 - 512	1156		1640 - 1668	1277 ± 1201	14 - 14		11
June 2001	1096	542 - 550	1777		2319 - 2327	290 ± 151	13 - 13		2
Sep 2001	135	208 - 274	203		411 - 477	327 ± 300	24 - 28		19
Iroquois River
Sep 1999	42	81 - 121	51		132 - 172	100 ± 67		9 - 12	7
May 2000	840	507 - 527	1358		1865 - 1885	711 ± 305		5 - 5	2
Sep 2001	79	139 - 195	111		250 - 307	181 ± 261		23 - 28	17