Table 1.

CO₂ partial pressure in large rivers in the world

		pCO2 μatm
River	Country	Mean	s.d.	Reference
Central Amazon	Brazil	4350	1900	13
Colorado	USA	4295	195	9 #
Columbia	Canada	1123	1175	9 *
Elbe	Germany	4095	1758	9 *
Hudson River Estuary	USA	1125	403	6
Humber	U.K	1500–6000	-	12
Illinois	USA	4419	240	9 #
Lagan River	N. Ireland	2722	1457	55
Main channel of Upper St.Lawrence	Canada	381	93	8
Mississippi	USA	4593	183	9 #
Parana	Brazil	3139	3240	56
Rhone	France	2015	944	9 *
Scheldt estuary	Belgium/Netherlands	5700–9500	-	2
Seine	France	1982	780	9 *
St.Lawrence	Canada	1300	-	11
Upper Jordan	Jordan	2461	608	57
Weser	Germany	4395	2966	9 *
Meech Lake	Canada	6929	8405	26
Changjiang	China	1297	901	This study

#: Originally from Alt, 1993;

*: Originally from Kempe, 1982;

-: Not available.