TABLE I-19 Comparison of Petroleum Hydrocarbon Loading Estimates from Land-based Sources from this Work and Other Studies

 

 

Hydrocarbon Loading (tonne yr−1)

Reference

Comments

Low

Best Estimate

High

World estimates

Baker (1983)

Petroleum hydrocarbons from municipal wastes, industrial waste, and runoff

700,000

1,400,000

2,800,000

National Research Council (1985)

World estimate of land-based sources

600,000

1,200,000

3,100,000

Van Vleet and Quinn (1978)

Petroleum hydrocarbons from municipal wastes only based on Rhode Island treatment plants

200,000

This work

World estimate of land-based sources

6,800

141,000

5,000,000

Ratio (this work: National Research Council [1985]

 

0.01

0.12

1.61

North American estimates

Eganhouse and Kaplan (1982)

US input of petroleum hydrocarbons based on mass emission rate for wastewater effluent in southern California

120,600

This work

North American estimate of land-based sources

2,500

52,000

1,800,000

TABLE I-20 Comparisons of Total PAH Concentrations in Literature, Baker (2001), and Michel (2001)

Reference

Description

Range or Average Measured Total PAH Concentrations (ng L−1)

Baker (2001)

Susquehanna River, Pennsylvania

17.01−150.81

Bidleman et al. (1990)

Sampit River, South Carolina

6.8

Gustafson and Dickhut (1997a)

Elizabeth River, Virginia

91.4

Gustafson and Dickhut (1997b)

York River, Virginia

29.15

Michel (2001)a

Mississippi River, Louisiana

100−156

Ollivon et al. (1999)

Seine River, France

94.44

Ollivon et al. (1999)

Marne River, France

148.35

aData used in the current study.

TABLE I-21 Estimated Concentrations of Polycyclic Aromatic Hydrocarbon Concentrations Based on Calculated Loadings

 

 

Estimated Concentration (ng L−1)

River

Annual Flow (106 m3 yr−1)

Low

Best

High

Columbia

220,892

19

26

320

Delaware

10,712

696

870

1,102

Hudson

12,365

242

3,258

4,127

James

6,209

168

2,270

2,875

Mississippia

625,760

101

126

160

Neuse

3,524

404

559

6,902

Sabine

7,043

135

186

2,297

Sacramento

21,000

197

273

3,366

Susquehanna

36,779

101

140

1,730

Trinity

8,944

359

496

6,124

Average

95,323

242

820

2,900

aEstimated oil and grease loading for Mississippi River was the same for low, best and high estimates of PAH loading (see Tables I-12 and I-13).



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