Jacques C. Finlay, Robert W. Sterner, and Sanjeev Kumar. 2007. Isotopic evidence for in-lake production of accumulating nitrate in Lake Superior. Ecological Applications 17:2323–2332.

Appendix A. Nitrate concentration and stable isotope data for rivers sampled during 2005.

Date	Site
24 May 2005	St. Louis	5.78	3.24	10.39
25 May 2005	Knife	1.15	-2.56	52.23
25 May 2005	Pigeon	0.85	-1.46	23.79
26 May 2005	Kaministiquia	2.62	0.72	17.67
26 May 2005	Nipigon	4.37	-3.05	4.43
26 May 2005	Temperance	3.30	0.77	4.76
26 May 2005	Wolf	5.03	0.14	7.35
17 June 2005	St. Louis	5.24	5.03	1.89
19 June 2005	Knife	1.15	-0.83	2.64
20 July 2005	Knife	0.41	4.10	22.41
20 July 2005	St. Louis	3.11	4.58	1.87
18 August 2005	Knife	4.75	-3.11	62.55
19 August 2005	Kaministiquia	9.71	0.56	21.59
19 August 2005	Pigeon	6.49	-3.03	62.16
19 August 2005	Wolf	7.12	4.04	24.96
20 August 2005	Nipigon	5.00	3.40	42.11
20 August 2005	Temperance	4.80	0.53	31.28