Table 1.

Ammonia emission ratios (ΔNH₃/ΔCO, mol/mol) for boreal biomass burning.

ΔNH3/ΔCO	Ecosystem/Fuel	Study Type	Source
1.0% ± 0.5%	Canadian Forest	Satellite (TES)	This Study
1.3%	Siberian Forest	Satellite (IASI)	[9]
0.16% ± 0.14%	Boreal Forests	Aircraft	[56]
1.3% ± 0.7%	Alaskan Forest	Aircraft	[54]
1.7% ± 0.9%	Alaskan Forest	Aircraft	[55]
6.9% ± 11.1%	Boreal Peat	Ground	[58]
5.9% ± 3.6%	Boreal organic soil	Ground	[58]
6.9% ± 3.2%	Boreal organic soil	Ground	[59]
1.7% ± 2.2%	Boreal dead, woody material	Ground	[59]
3.5%	Alaskan Duff	Laboratory	[4]
1.0% ± 0.7%	Boreal Forests	Review: Aircraft Only	[3]
5.1% ± 5.6%	Boreal Forests	Review: Ground Only	[3]
3.5% ± 3.2%	Boreal Forests	Review: Aircraft and Ground	[3]
2.6% ± 2.2%	Extratropical Forests	Review: Aircraft, Satellite, and Ground	[57]