TABLE I-16 Comparison of Estimates of Worldwide Land-based Contributions of Oil and Grease to the Sea Based on Unit Loads per Urban Land Area and Unit Loads per Capita Urban Population

World Region

Coastal Zone

Description

Annual Load Based on Pop. (tonne yr−1)

Annual Load Based on Area (tonne yr−1)

North Americaa

A

No urban areas

0

0

B

Coastal

0

0

Saskatchewan

41,655

43,542

Subtotal

41,655

43,542

C

Coastal

8,987

8,529

St. Lawrence

80,278

24,699

Subtotal

89,265

33,228

D

Coastal

2,878,535

1,487,571

Delaware

62,130

62,130

Hudson

91,929

268,593

James

22,726

93,964

Potomac

1,409

2,446

Susquehanna

39,634

34,361

Subtotal

3,096,364

1,949,065

E

Coastal

168,292

100,104

Altamaha

6,462

6,896

Neuse

16,517

13,133

Roanoke

4,792

6,057

Santee

45,462

33,573

Savannah

6,499

7,954

Subtotal

248,024

167,717

F

Coastal

76,118

53,108

Alabama-Tombigbee

22,762

24,890

Apalachicola

57,096

27,223

Subtotal

155,976

105,222

G

Coastal

143,951

94,398

Gulf coast refineriesb

2,882

2,882

razos

14,040

18,039

Colorado (TX)

16,683

18,670

Mississippi

525,638

525,638

Rio Grande

20,042

54,982

Sabine

5,330

8,734

Trinity

66,565

29,572

Subtotal

795,130

752,913

Ha

Coastal and inland rivers

157,387

108,189

I

No urban areas

0

0

Ja

Coastal and inland rivers

83,810

57,612

K

Coastal

260,566

123,976

L

Coastal

109,253

54,349

Sacramento

30,596

38,171

San Joaquin

33,863

57,647

Subtotal

173,711

150,168

M

Coastal

84,521

67,725

Columbia

17,959

38,206

Subtotal

102,480

105,931

N

Coastal

30,361

4,332

O

Coastal

12,364

1,949

P

Coastal

3,568

5,514

Copper

0

0

Susitna

0

0

Subtotal

3,568

5,514

Q

Coastal

0

0

Yukon

0

0

Subtotala

5,009,464

3,443,557

Africa

 

 

356,249

244,889

Europe

 

 

4,506,162

3,097,582

Central America

 

 

328,984

226,147

South America

 

 

683,454

469,813

Asia

 

 

2,463,506

1,693,439

Oceania

 

 

289,851

199,247

TOTAL

 

 

13,637,670

9,374,694

NOTES: aSubtotal for North America does not include Coastal Zones in Mexico; bSee Table F-4 for calculation of refinery loading.



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