TABLE 2-8 Average Annual Input (1990-1999) of Petroleum Hydrocarbons (tonnes) for the Pacific Seaboard of North America (plus Hawaii)

ZONE (Coastal)

J

K

L

M

N

O

Sum Seepsa

na

na

na

na

na

na

Platforms

na

traceb

trace

na

na

na

Atmospheric

na

trace

na

na

na

na

Produced

na

trace

na

na

na

na

Sum Extraction

nac

trace

trace

nac

nac

nac

Pipelines

ndd

39

trace

trace

trace

0

Tank vessel

nd

150

trace

10

trace

0

Coastal facilities

trace

62

26

10

31

69

Atmospheric

trace

trace

trace

trace

trace

trace

Sum Transportation

trace

250

35

23

42

73

Land-based

860

1900

2300

1600

29

65

Recreational vessels

nde

280

320

1600

36

nd

Vessels >100GT (spills)

ndf

28

trace

35

26

trace

Vessel >100GT (op discharge)

trace

trace

trace

trace

trace

trace

Vessel <100GT (op discharge)

trace

trace

trace

trace

trace

trace

Atmospheric

420

14

44

120

150

280

Aircraftg

na

na

na

na

na

na

Sum Consumption

1300

2200

2700

3400

240

350

ZONE (Offshore)

J

K

L

M

N

O

Sum Seeps

na

20000

na

na

na

na

Platforms

na

trace

na

na

na

na

Atmospheric

na

trace

na

na

na

na

Produced

na

85

na

na

na

na

Sum Extraction

nac

92

nac

nac

nac

nac

Pipelines

ndh

trace

0

0

0

0

Tank vessel

trace

0

12

trace

trace

0

Atmospheric

trace

trace

trace

trace

trace

trace

Sum Transportation

trace

trace

12

trace

trace

trace

Land-basedi

na

na

na

na

na

na

Recreational vesselsj

na

na

na

na

na

na

Vessels >100GT (spills)

trace

trace

16

13

87

52

Vessel >100GT (op discharge)

trace

trace

trace

trace

trace

trace

Vessel <100GT (op discharge)

trace

trace

trace

trace

trace

trace

Atmospheric

140

na

40

33

390

38

Aircraft

15

230

75

30

45

75

Sum Consumption

160

240

130

82

520

170

Grand Total

1500

23000

2800

3500

700

590

Sum of Anthropogenic

1500

2100

2800

2100

700

590

aNo known seeps in these regions

bEstimated loads of less than 10 tonnes per year reported as “trace”

cNo known oil and gas production in this region

dNo information on transportation-related spills was available for this region (see Chapter 3 and Appendixes D, E, and G)

ePopulations of recreational vessels were not available for these regions (see Chapter 3 and Appendix F)

fInsufficient information on spills from cargo vessels was available for this region (see Chapter 3 and Appendix E)

gPurposeful jettisoning of fuel not allowed within 3 nmiles of land (see Chapter 3 and Appendix E)

hInsufficient information on spills from pipelines was available for this region (see Chapter 3 and Appendix E)

iLand-based inputs are defined in this study as being limited to the coastal zone (see Chapter 3 and Appendix I)

jRecreational vessels are defined in this study as being limited to operations within 3 nmiles of the coast (see Chapter 3 and Appendix F)



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement