BP - Environmental data 2006

Air emissions, by pollutant: Oxides of Nitrogen
This stacked bar chart shows the oxides of nitrogen emissions to air of each business segment.

Air emissions, by pollutant: Oxides of Nitrogen
	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
Oxides of Nitrogen - E&P	Tonnes	134,177	145,544	162,608	145,438	129,950	123,389	127,765	110,391
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
Oxides of Nitrogen - R&M (2)	Tonnes	54,700	51,032	48,310	41,961	37,883	26,370	22,952	21,288
Total Emissions to Air - Chemicals (7,9)	Tonnes	42,234	36,047	36,776	35,065	34,568	33,722	40,274
Oxides of Nitrogen - Chemicals (7)	Tonnes	12,208	10,635	9,997	10,896	10,487	10,610	10,699
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
Oxides of Nitrogen - GRST and Other	Tonnes	36,458	34,674	45,218	43,793	41,998	55,093	56,519	64,315

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