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• Total air emissions: By pollutant
• Total air emissions: By segment
• Air emissions, by pollutant: Methane
• Air emissions, by pollutant: NMHC
• Air emissions, by pollutant: Sulphur Dioxide
• Air emissions, by pollutant: Oxides of Nitrogen
• Air emissions, by business segment: E&P
• Air emissions, by business segment: R&M
• Air emissions, by business segment: Chemicals
• Air emissions, by business segment: - GRST and Other
• Total discharges to water: By business segment
• Total discharges to water: By pollutant, E&P
• Total discharges to water: By pollutant, COD
• Total water withdrawal: Group
• Total hazardous waste: By business segment

Total discharges to water: By pollutant, E&P
This stacked bar chart shows the discharges to water of the Exploration and Production business segment, analyzed by pollutant type.

Total discharges to water: By pollutant, E&P

	Units	1999	2000	2001	2002	2003	2004	2005	2006
Discharges to water - Group total	Tonnes	46,381	58,399	80,918	125,872	57,067	56,981	45,883	71,322
Drilling discharges E&P (8)	Tonnes	34,353	45,499	55,595	102,820	33,928	31,652	28,233	56,320
Oil in muds and cuttings - E&P	Tonnes	1,031	705	0	0	0	0	0	0
Synthetic drill fluids in muds - E&P	Tonnes	10,984	20,570	5,067	4,032	2,096	1,561	1,552	1,968
Drilling chemicals (8)	Tonnes	22,338	24,224	50,528	98,788	31,832	30,091	26,681	54,352
Operational discharges - E&P (8)	Tonnes			11,653	9,081	8,681	9,733	9,119	10,623
Oil in produced water - E&P	Tonnes	1,420	2,016	1,390	1,359	832	939	768	605
Production chemicals - E&P (8)	Tonnes			10,263	7,722	7,849	8,794	8,351	10,018

(8) New water categories reported for the first time in the charting tool in 2005

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