1995 BASE YEAR OZONE EMISSION INVENTORY

FOR OZONE PRECURSORS AND CARBON MONOXIDE

for

Oklahoma City Area

 

 

 

 

 

January 1998

 

 

 

 

 

Prepared by:

Oklahoma Department of Environmental Quality

Air Quality Division

P.O. Box 1677

707 N Robinson

Oklahoma City, OK 73101

 

 

 

 

 

 

EXECUTIVE SUMMARY

This document presents the 1995 base year Oklahoma City Special Emission Inventory for ozone in the Oklahoma City Management Area (OMA).

The inventory addresses volatile organic compound (VOC), oxides of nitrogen (NOx), and carbon monoxide (CO) emissions from stationary point, stationary area, on-road mobile, non-road mobile and biogenic sources. The Oklahoma Department of Environmental Quality, Air Quality Division, was the lead agency responsible for the compilation of the inventory.

Total annual ozone precursor emissions and total average daily peak ozone season precursor emissions for the 1995 base year were determined for each source category. The description and documentation for each source category is provided. The tables below summarize the results of the inventory:

 

EMISSIONS TONS PER YEAR LBS PER OZONE SEASON DAY
VOC

120,916

1,633,490

NOx

68,264

415,213

CO

424,390

2,429,647

 

 

SOURCE TYPE VOC VOC NOx NOx CO CO
  tons/year lbs/day tons/year lbs/day tons/year lbs/day
Stationary Point

25,931

142,382

12,034

64,234

9,887

55,686

Stationary Area

29,788

184,493

7,000

44,285

4,055

26,398

Non-Road Mobile

16,903

96,615

12,419

83,814

70,915

487,103

On-Road Mobile

48,294

264,600

36,811

201,700

339,533

1,860,460

Biogenic

*

945,400

*

21,180

*

--

TOTAL

120,916

1,633,490

68,264

415,213

424,390

2,429,647

*Not determined on an annual basis.

1. 0 BACKGROUND AND EMISSIONS SUMMARY

 

1.1 BACKGROUND

This document presents the 1995 base year Oklahoma City Special Emission Inventory for ozone in the Oklahoma City Management Area (OMA). The inventory addresses volatile organic compound (VOC), oxides of nitrogen (NOx), and carbon monoxide (CO) emissions from stationary point, stationary area, on-road mobile, and non-road mobile emission sources. Emissions of VOC and NOx are also addressed for biogenic sources.

The emissions inventory for the Oklahoma City Management Area covers the City of Oklahoma City and the area 25 miles from the borders of Oklahoma County. In addition to Oklahoma County, the area encompasses parts of Caddo, Canadian, Cleveland, Grady, Kingfisher, Lincoln, Logan, McClain, Payne, Pottawatomie, and Seminole Counties. The area within the 25-mile boundary was converted to a percentage for each county and used in calculations. The OMA is illustrated in Figure 1-1.

The agency with the direct responsibility for preparing and submitting the Oklahoma City Special Emissions Inventory is the Oklahoma Department of Environmental Quality (DEQ), Air Quality Division (AQD). The AQD was directly responsible for coordinating the completion of each segment of the inventory. Emission estimates were derived using information from the Tulsa Area Emissions Inventory. The methods used by Enercon Services, Inc. in the stationary area sources and a portion of the non-road mobile sources served as a reference for use in the Oklahoma City Emissions Inventory. Several other state and local agencies contributed information that was necessary for preparing emission estimates. For example, the Oklahoma Department of Transportation provided information on the total length and location of state highway projects to determine emissions from asphalt paving. The Oklahoma Corporation Commission provided information on the number of oil and gas wells in the OMA.

The AQD staff completed the emissions inventory for the stationary point, on-road mobile, biogenic, and the majority of the non-road mobile sources. The contact persons for the major contributors to the inventory are listed in Table 1-1. The exact mechanisms by which each of these groups supported the development of the base year inventory are explained in detail in the appropriate source type documentation section.

 

1.2 EMISSIONS SUMMARY

Total annual ozone precursor emissions from the OMA for the 1995 base year are shown below:

VOC emissions = 120,916 tons/year

NOx emissions = 68,264 tons/year

CO emissions = 424,390 tons/year

 

Figure 1-2 illustrates the relative magnitude of the annual emissions in the OMA.

Total average daily peak ozone season precursor emissions from the OMA for the 1995 base year are shown below:

Daily emissions were averaged for the 3-month peak ozone season for the OMA, which was determined as June 1 to August 31 (based on the highest ozone violations for the years 1993-1995). Figure 1-3 illustrates the relative magnitude of daily emissions from different sources for the OMA.

Table 1-2 and Table 1-3 summarize annual and ozone season daily emissions, respectively, by county. Figure 1-4 illustrates the distribution of annual emissions by county. Table 1-4 and Table 1-5 summarizes annual and ozone season daily emissions, respectively, for the entire study area according to the five major source type categories: stationary point sources, stationary area sources, non-road mobile sources, on-road mobile sources, and biogenic sources. The percentage contribution of each of the source types to the total inventory emissions for VOC, NOx, and CO are as follows (see Figure 1-5):

VOC (%) NOx (%) CO(%)

Stationary Point Sources 21.4% 17.6% 2.3%

Stationary Area Sources 24.6% 10.3% 1.0%

On-Road Mobile Sources 39.9% 53.9% 80.0%

Non-Road Mobile Sources 14.0% 18.2% 16.7%

Table 1-6 through Table 1-8 summarize emissions for each pollutant by county by major source type class.

The remainder of this document is organized as follows:

FIGURE 1-1. MAP OF THE EMISSIONS INVENTORY AREA FOR THE OMA 1995 BASE YEAR

Figure 1-1. Map of the Emissions Inventory Area for the OMA 1995 base year

 

TABLE 1-1. LIST OF CONTACT PERSONS FOR THE OKLAHOMA CITY EMISSIONS INVENTORY

1995 BASE YEAR

AGENCY RESPONSIBILITY CONTACT/ TELEPHONE NUMBER
Oklahoma Dept. of Environmental Quality/Air Quality Division

4545 N. Lincoln

Oklahoma City, OK 73105-1212

Lead agency, overall inventory coordination, quality review Pamela Green, Project Leader

(405) 290-8247

Oklahoma Dept. of Environmental Quality/Air Quality Division

4545 N. Lincoln

Oklahoma City, OK 73105-1212

Responsible for non-road mobile source emissions inventory Curt Goeller and Pamela Green

(405) 290-8247

Oklahoma Dept. of Environmental Quality/Air Quality Division

4545 N. Lincoln

Oklahoma City, OK 73105-1212

Responsible for stationary point emissions inventory Sam Cannella and Joel Hopper

(405) 290-8247

Oklahoma Dept. of Environmental Quality/Air Quality Division

4545 N. Lincoln

Oklahoma City, OK 73105-1212

Responsible for stationary area sources Juliette Hulen

(405) 290-8247

Oklahoma Dept. of Environmental Quality/Air Quality Division

4545 N. Lincoln

Oklahoma City, OK 73105-1212

Responsible for on-road mobile and biogenic source emissions inventory Leon Ashford

(405) 290-8247

 

FIGURE 1-2. SUMMARY OF ANNUAL OMA OZONE PRECURSOR EMISSIONS

1995 BASE YEAR

Figure 1-2. Summary of OMA Ozone Precursor Emissions

 

FIGURE 1-3. SUMMARY OF OMA OZONE SEASON DAILY EMISSIONS

1995 BASE YEAR

Figure 1-3. Summary of OMA Ozone Season Daily Emissions 1995 Base Year

 

TABLE 1-2. ANNUAL VOC, NOx, AND CO EMISSIONS BY COUNTY IN THE OMA

1995 BASE YEAR

COUNTY VOC NOx CO
  (tons/yr) (tons/yr) (tons/yr)
Caddo

20

7

33

Canadian

9,915

4,133

22,948

Cleveland

11,613

7,530

57,228

Grady

6,094

2,693

8,507

Kingfisher

15,076

2,670

7,413

Lincoln

7,950

5,044

13,070

Logan

7,274

2,460

12,478

McClain

3,889

1,412

5,619

Oklahoma

49,361

35,317

269,545

Payne

2,696

3,924

7,790

Pottawatomie

6,789

2,931

19,210

Seminole

239

143

549

TOTAL

120,916

68,264

424,390

 

TABLE 1-3. OZONE SEASON DAILY VOC, NOx, AND CO EMISSIONS BY COUNTY IN THE OMA

1995 BASE YEAR

COUNTY VOC NOx CO
  (lbs/day) (lbs/day) (lbs/day)
Caddo

96

61

109

Canadian

66,498

27,907

124,653

Cleveland

257,708

46,201

340,388

Grady

45,371

16,762

41,646

Kingfisher

83,115

17,674

32,246

Lincoln

239,856

28,622

60,188

Logan

88,281

16,378

60,577

McClain

42,137

8,841

28,330

Oklahoma

470,248

209,797

1,592,848

Payne

42,953

22,257

42,636

Pottawatomie

281,745

19,890

103,774

Seminole

15,482

823

2,252

TOTAL

1,633,490

415,213

2,429,647

 

TABLE 1-4. DISTRIBUTION OF OMA ANNUAL EMISSIONS BY SOURCE TYPE

1995 BASE YEAR

SOURCE TYPE VOC NOx CO
  (tons/yr) (tons/yr) (tons/yr)
Stationary Point Sources

25,931

12,034

9,887

Stationary Area Sources

29,788

7,000

4,055

Non-Road Mobile Sources

16,903

12,419

70,915

On-Road Mobile Sources

48,294

36,811

339,533

Biogenic Sources

*

*

*

TOTAL

120,916

68,264

424,390

*Not determined on an annual basis.

 

 

 

 

TABLE 1-5. DISTRIBUTION OF OMA OZONE SEASON DAILY EMISSIONS BY SOURCE TYPE

1995 BASE YEAR

SOURCE TYPE VOC NOx CO
  (lbs/day) (lbs/day) (lbs/day)
Stationary Point Sources

142,382

64,234

55,686

Stationary Area Sources

184,493

44,285

26,398

Non-Road Mobile Sources

96,615

83,814

487,103

On-Road Mobile Sources

264,600

201,700

1,860,460

Biogenic Sources

945,400

21,180

--

TOTAL

1,633,490

415,213

2,429,647

 

FIGURE 1-4. DISTRIBUTION OF ANNUAL EMISSIONS BY COUNTY FOR THE OMA

1995 BASE YEAR

Figure 1-4. VOC Emissions Pie Chart

Figure 1-1. NOx Emissions Pie Chart

Figure 1-4. CO Emissions Pie Chart

 

 

FIGURE 1-5. DISTRIBUTION OF ANNUAL EMISSIONS BY SOURCE TYPE FOR THE OMA EXCLUDING BIOGENIC SOURCES

1995 BASE YEAR

Figure 1-5. VOC Emissions Pie Chart

Figure 1-5. NOx Emissions Pie Chart

 

Figure 1-5. CO Emissions Pie Chart

 

TABLE 1-6 SUMMARY OF VOC EMISSIONS IN THE OMA BY COUNTY AND SOURCE TYPE

1995 BASE YEAR

VOC ANNUAL EMISSIONS (tons/year)

COUNTY POINT SOURCES AREA SOURCES NON-ROAD MOBILE ON-ROAD MOBILE BIOGENIC SOURCES TOTAL
Caddo

0

12

6

2

*

20

Canadian

2,750

3,287

1,669

2,209

*

9,915

Cleveland

230

2,754

2,014

6,615

*

11,613

Grady

2,409

2,091

961

633

*

6,094

Kingfisher

11,241

2,507

1,003

325

*

15,076

Lincoln

1,286

3,846

1,737

1,081

*

7,950

Logan

1,710

3,181

1,462

921

*

7,274

McClain

1,508

1,287

596

498

*

3,889

Oklahoma

4,326

6,500

5,250

33,285

*

49,361

Payne

458

927

612

699

*

2,696

Pottawatomie

13

3,269

1,526

1,981

*

6,789

Seminole

0

127

67

45

*

239

TOTAL

25,931

29,788

16,903

48,294

*

120,916

*Not determined on an annual basis

VOC OZONE SEASON DAILY EMISSIONS (lbs/day)

COUNTY POINT SOURCES AREA SOURCES NON-ROAD MOBILE ON-ROAD MOBILE BIOGENIC SOURCES TOTAL
Caddo

0

76

0

20

0

96

Canadian

15,058

20,438

5,702

12,100

13,200

66,498

Cleveland

1,257

17,142

16,469

36,240

186,600

257,708

Grady

13,236

13,072

1,603

3,460

14,000

45,371

Kingfisher

61,669

15,646

620

1,780

3,400

83,115

Lincoln

7,050

24,060

2,426

5,920

200,400

239,856

Logan

9,384

19,845

2,612

5,040

51,400

88,281

McClain

8,306

8,038

1,073

2,720

22,000

42,137

Oklahoma

23,819

39,264

58,985

182,380

165,800

470,248

Payne

2,526

5,766

2,221

3,840

28,600

42,953

Pottawatomie

77

20,357

4,851

10,860

245,600

281,745

Seminole

0

789

53

240

14,400

15,482

TOTAL

142,382

184,493

96,615

264,600

945,400

1,633,490

 

TABLE 1-7 SUMMARY OF NOx EMISSIONS IN THE OMA BY COUNTY AND SOURCE TYPE

1995 BASE YEAR

NOx ANNUAL EMISSIONS (tons/year)

COUNTY POINT SOURCES AREA SOURCES NON-ROAD MOBILE ON-ROAD MOBILE BIOGENIC SOURCES TOTAL
Caddo

0

3

2

2

*

7

Canadian

539

824

1,086

1,684

*

4,133

Cleveland

51

648

1,789

5,042

*

7,530

Grady

1,313

564

334

482

*

2,693

Kingfisher

1,491

615

317

247

*

2,670

Lincoln

2,589

1,045

586

824

*

5,044

Logan

237

846

675

702

*

2,460

McClain

407

345

280

380

*

1,412

Oklahoma

2,643

994

6,309

25,371

*

35,317

Payne

2,567

240

584

533

*

3,924

Pottawatomie

169

844

408

1,510

*

2,931

Seminole

28

32

49

34

*

143

TOTAL

12,034

7,000

12,419

36,811

*

68,264

*Not determined on an annual basis

NOx OZONE SEASON DAILY EMISSIONS (lbs/day)

COUNTY POINT SOURCES AREA SOURCES NON-ROAD MOBILE ON-ROAD MOBILE BIOGENIC SOURCES TOTAL
Caddo

0

21

0

20

20

61

Canadian

2,954

5,230

5,763

9,220

4,740

27,907

Cleveland

339

4,094

13,308

27,620

840

46,201

Grady

7,208

3,574

1,060

2,640

2,280

16,762

Kingfisher

8,142

3,909

543

1,360

3,720

17,674

Lincoln

14,093

6,622

1,547

4,520

1,840

28,622

Logan

1,123

5,356

2,639

3,840

3,420

16,378

McClain

2,461

2,184

1,036

2,080

1,080

8,841

Oklahoma

13,574

6,225

49,598

139,020

1,380

209,797

Payne

13,278

1,519

3,860

2,920

680

22,257

Pottawatomie

908

5,346

4,216

8,280

1,140

19,890

Seminole

154

205

244

180

40

823

TOTAL

64,234

44,285

83,814

201,700

21,180

415,213

 

TABLE 1-8 SUMMARY OF CO EMISSIONS IN THE OMA BY COUNTY AND SOURCE TYPE

1995 BASE YEAR

CO ANNUAL EMISSIONS (tons/year)

COUNTY POINT SOURCES AREA SOURCES NON-ROAD MOBILE ON-ROAD MOBILE BIOGENIC SOURCES TOTAL
Caddo

0

1

15

17

*

33

Canadian

1,392

328

5,696

15,532

*

22,948

Cleveland

37

414

10,271

46,506

*

57,228

Grady

1,288

305

2,464

4,450

*

8,507

Kingfisher

2,669

224

2,239

2,281

*

7,413

Lincoln

591

586

4,295

7,598

*

13,070

Logan

1,486

527

3,990

6,475

*

12,478

McClain

288

200

1,630

3,501

*

5,619

Oklahoma

1,706

780

33,047

234,012

*

269,545

Payne

424

150

2,299

4,917

*

7,790

Pottawatomie

6

523

4,754

13,927

*

19,210

Seminole

0

17

215

317

*

549

TOTAL

9,887

4,055

70,915

339,533

*

424,390

*Not determined on an annual basis

 

CO OZONE SEASON DAILY EMISSIONS (lbs/day)

COUNTY POINT SOURCES AREA SOURCES NON-ROAD MOBILE ON-ROAD MOBILE BIOGENIC SOURCES TOTAL
Caddo

0

9

0

100

--

109

Canadian

7,663

2,248

29,642

85,100

--

124,653

Cleveland

322

2,717

82,529

254,820

--

340,388

Grady

7,497

1,961

7,808

24,380

--

41,646

Kingfisher

14,870

1,538

3,338

12,500

--

32,246

Lincoln

3,220

3,737

11,591

41,640

--

60,188

Logan

8,167

3,319

13,611

35,480

--

60,577

McClain

2,138

1,272

5,740

19,180

--

28,330

Oklahoma

9,406

5,225

295,957

1,282,260

--

1,592,848

Payne

2,370

952

12,374

26,940

--

42,636

Pottawatomie

33

3,312

24,109

76,320

--

103,774

Seminole

0

108

404

1,740

--

2,252

TOTAL

55,686

26,398

487,103

1,860,460

--

2,429,647