BP - Environmental data 2006

Air emissions, by pollutant: Methane
This stacked bar chart shows the methane emissions to air of each business segment.

Air emissions, by pollutant: Methane
	Units	1999	2000	2001	2002	2003	2004	2005	2006
Emissions to Air - Group total (9)	Tonnes	1,354,596	1,211,171	1,222,918	1,036,207	886,462	844,431	903,268	763,675
Total Emissions to Air - E&P (9)	Tonnes	842,990	710,617	736,682	603,381	488,363	471,130	480,930	429,924
Methane - E&P	Tonnes	462,718	355,376	356,103	291,165	228,500	230,671	239,463	213,352
Total Emissions to Air - R&M (2,9)	Tonnes	331,099	319,816	275,718	243,127	233,223	174,185	170,076	128,562
Methane - R&M (2)	Tonnes	10,126	1,716	1,478	1,375	2,327	1,681	4,973	5,333
Total Emissions to Air - Chemicals (7,9)	Tonnes	42,234	36,047	36,776	35,065	34,568	33,722	40,274
Methane - Chemicals (7)	Tonnes	2,516	3,269	2,837	3,283	3,183	5,295	1,591
Total Emissions to Air - GRST and Other (3,9)	Tonnes	138,273	144,691	173,742	154,634	130,308	165,394	211,987	205,189
Methane - GRST and Other	Tonnes	3,436	6,276	6,783	6,941	12,454	19,880	17,812	17,462

(2)From 2003, air emissions for marketing have excluded SOx and NOx
(7) Chemicals business in 2005 is the Innovene business sold as Ineos