NEW CUMBERLAND,  WEST VIRGINIA - KNOX TOWNSHIP, OHIO,
            AIR POLLUTION ABATEMENT ACTIVITY
       U.S. DEPARTMENT OF HEALTH,  EDUCATION, AND WELFARE
                     Public Health Service
        Consumer Protection and Environmental Health Service

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                              T'iCi^ic.iL r.r.ro::
             NEW CUMBERLAND,  WEST VIRGINIA—XM TI TGIKSHIP,  OHIO
                     AIR POLLUTION ABATEMENT ACTF-- ".IY

                                - ERRATA -

  1.   Page 1 - paragraph 4,  line 6:  "Pollution is  heaviest in the area
      closest to the power plant..."  should read,  "Dustfall is heaviest
      in the area closest to  the power plant..."

  2.   Page 14 - Table 3:  Delete footnote "a" from  column 1, line 4.

  3.   Page 19 - Table 7, Column 6, line 4:  "90.1"  should read "90.5."

  4.   Page 20 - Figure 4:  "0" on the ordinate  should read "1."

  5.   Page 23 - paragraph 1,  line 2:  Add "percent" after "6.6."

  6.   Page 30 - paragraph 1,  line 10:  Delete "the  right meteorological
      conditions:  and insert  in lieu of:   "suitable meteorological condi-
      tions or when the plant is operated near  full capacity."

  7.   Page 30 - paragraph 1,  line 9:  "probably" should read "probable."

  8.   Page 33 - paragraph 2,  line 5:  "Change"  should read "changed."

  9.   Page 43 - paragraph 1,  line 4:  Change "30 to 60" to "15 to 30."

10.   Page 46 - paragraph 3,  line 6:  After  "ground l&vsl"  add "from a
      point at an  appropriate distance upwind of the plant."

11.   Page 50 - Table 24,  column 4,  line  12:  "2555-342" should read "255-342."

12.   Page 50 - paragraph 3,  line 5:  Delete "a."

13.   Page 52 - paragraph 3,  line 10:   After "dry bottom" add "and wet  bottom."

14.   Page 55 - reference 9,  "Haggen-Smith"  should  read "Haagen-Smit."

15.   Page B-3  - Figure B-2:   Bar graphs shown are not to uniform scale.
      Percent frequency values indicated  at  end  of  direction bars  are correct.

16.   Page B-4  - paragraph 2,  line 5:   Delete entire sentence:   "Stability
      data...Ohio River Valley."

17.   Page B-5  - paragraph 2,  line 4:   Change "20"  to "24."

18.   Page B-5  - Figure B-3:   delete "and windspeed" from title.

19.   Page B-6  - paragraph I,  line 8:   "8 percent of the time"  should read
      "on  8 percent of  the cases."

20.   Page B-6  - Figure  B~4:   Delete "and windspeec"  from title.

21.   Page B-7  - Figure  B-5:   Delete "and win:>,peed"  from title.

22.   Page B-15 - reference 4:  "Meteorology a^-i Atomic  Energy" should
     read  "Meteorology  and Atomic Energy --  1968."

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           TECHNICAL REPORT

 NEW CUMBERLAND, WEST VIRGINIA -
         KNOX TOWNSHIP, OHIO

 AIR POLLUTION ABATEMENT ACTIVITY
 PRE-CONFERENCE  INVESTIGATIONS
        Prepared for Conference Use Only
 U.S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE
            Public Health Service
Consumer Protection and Environmental Health Service
  National Air Pollution Control Administration
            Durham, North Carolina
                 June 1969

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National Air Pollution Control  Administration  Publication  No. APTD 69-13

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                                    FOREWORD
     This report is based on  an  investigation of air pollution in the New Cumberland,
West Virginia - Knox Township, Ohio  area.  The report is intended to assist the
governmental  agencies concerned  with such air pollution in their consideration of
the following:
     1.  The occurrence of air pollution subject to abatement.
     2.  The adequacy of measures taken toward abatement of pollution.
     3.  The nature of the delay, if any, in abating the pollution.
     4.  The necessary remedial  action, if any.

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                                    CONTENTS
   I.   SUMMARY AND CONCLUSIONS  	     1
  II.   INTRODUCTION 	     3
           History of the Problem	     3
           History of Abatement Activity	     5
 III.   DESCRIPTION OF THE AREA	     7
           Demography 	     7
           Topography 	     7
           Climatology  	     8
  IV.   DESCRIPTION OF THE TORONTO PLANT	    11
           Plant Facility	    11
           Plant Operation	    11
           Emissions	    11
   V.   ASSESSMENT OF PROBLEM	    21
           Air Quality Data	    22
           Effects of Pollution 	    31
  VI.   CALCULATED IMPACT OF TORONTO POWER PLANT ON  NEW  CUMBERLAND  	    41
 VII.   CONTROL TECHNOLOGY FOR TORONTO POWER PLANT 	    49
VIII.   REFERENCES	    55
  IX.   APPENDICES	    57
           A.  Correspondence and Resolution  	   A-l
           B.  Dilution Climate of Ohio  Valley Near New Cumberland   	   B-l
           C.  Air Pollution Opinion Survey Made by Mayor's  Committee on
               Air Pollution	   C-l

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                            TECHNICAL REPORT
                 NEW CUMBERLAND,  WEST VIRGINIA -
                          KNOX  TOWNSHIP,  OHIO
                 AIR POLLUTION  ABATEMENT ACTIVITY

                        I.  SUMMARY AND CONCLUSIONS
     Citizens of the City  of New Cumberland, West Virginia, have responded both
individually and collectively through appointed representatives in  protest to the
longstanding degradation of air quality of their community by air pollutant emis-
sions from the Toronto Plant of the Ohio Edison Company in Knox Township, Ohio.
     New Cumberland, population 2,076, is a residential area without  appreciable
manufacturing activity. The city proper, a long and narrow area, is  situated along
the Ohio river in the upper Ohio River Valley.   The Toronto Power Plant is located
directly across the 1/4-mile width of the river from the southern edge of New
Cumberland.  The valley walls rise steeply to form  a well developed valley, 400 to
500 feet deep in the vicinity of New Cumberland.
     Topography in the valley greatly influences wind flow and limits the ability of
the atmosphere to adequately disperse pollutants.   Frequent inversions and restricted
lateral  dispersion and weak winds allow periods of  pollutant accumulation.  Stronger
winds can cause a downwash of the power plant plume to ground level.
     Pollutants of concern in New Cumberland are primarily particulate matter and
sulfur dioxide.  The major source of air pollutants is the power plant.  Levels of
dustfall, fly ash, and suspended particulate matter are excessive,  compared with
values considered acceptable by the general  public. Levels of sulfur dioxide,
although not generally or  consistently ,high, reach  short-term concentrations at
which undesirable effects  are produced.  Pollution  is heaviest in the area closest
to the power plant, but all  areas of New Cumberland and surrounding ridges are
affected.
     Air pollution problems  that exist in New Cumberland have reached levels that
justify serious efforts to ameliorate the situation.  Undesirable effects in New
Cumberland include reduced visibility, soiling, excessive dustfall, paint damage,
vegetation damage, and irritating odors.  These effects cost money, interfere with
the enjoyment of property, contribute to the deterioration of the community, and
constitute a variety of annoyances.  The effect of  pollution on health as inferred

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by comparison of measured levels with air quality criteria is of concern.
     Adequate control of pollutant emissions can be attained, and technology required
for the solution of the problem is available.  Certain measures can be undertaken
that will result in a reduction of pollutant emission, which will improve  air quality
to an acceptable degree.  Complete attainment of desired air quality in New Cumber-
land is unlikely, however, while other sources along the upper Ohio River  valley
continue to emit large quantities of pollutants.

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                                II.  INTRODUCTION
     Air pollution has long been known to the residents of the upper Ohio  River
Valley.  In the past, dust and smoke were accepted as part of the industrial  heritage
of the area.  Industry in turn has  sometimes continued to release pollutants long
after technology was available to control and collect the offending  air contaminants.
HISTORY OF THE PROBLEM
     After many discouraging years  dating back to the establishment  of electrical
power plants on the Ohio side of the Ohio River in the 1920's, the residents of  New
Cumberland, West Virginia, joined together in 1950 in an attempt to  seek relief
from the dust and smoke caused by the burning of coal at the Ohio Edison Company
power plant in Knox Township near Toronto, Ohio.  Figure 1 shows the proximity of
the power plant to the City of New Cumberland, West Virginia.
     At the inception of the New Cumberland Civic Group in 1950, an  attorney was
retained to present the group's problem to officials of the Ohio Edison Company.
The company agreed to install dust collectors on the plant to reduce emissions of
fly ash.  With the installation of mechanical dust collectors at the power plant,
the group ceased all activity.
     The New Cumberland Civic Group was reactivated on March 30, 1966 to continue
efforts to abate increasing amounts of fly ash affecting all areas of the  city.
Representatives of the Ohio Edison  Company and the West Virginia Air Pollution Con-
trol Commission met with representatives of the civic group in New Cumberland on
July 14, 1966  to discuss complaints of dust and smoke descending on the city from
the Ohio Edison Toronto Plant.  Officials from the Ohio Edison Company pointed out
that increased demands for power required greater use of the Power Plant.
     During June 1968, Mr. Arthur Watson, mayor of New Cumberland, appointed a six-
member committee to investigate means for a solution to the problem.  The  Committee
conducted a city-wide survey of opinion about local air pollution; organized medical
studies of respiratory illness in the district; sponsored picketing  of the Toronto
Plant; and sponsored a series of meetings with the County Medical Society, Ohio
Edison officials, and West Virginia Air Pollution Control Commission representatives.
A petition signed by 688 residents  requested action be taken against air pollution
caused by the Ohio Edison Company.

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Figure 1.   Toronto Power Plant,  across  Ohio  River  from New Cumberland, W. Va.

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HISTORY OF ABATEMENT ACTIVITY
     On February 3, 1969, a resolution was passed by the Common Council  of  the  City
of New Cumberland formally requesting the Secretary of Health,  Education, and Welfare
to assist the residents of New Cumberland by instituting an interstate  air  pollution
abatement action.  The resolution was concurred in by the governor of the State of
West Virginia on February 14, 1969, and by the chairman of the  Air Pollution Control
Commission, State of West Virginia, on February 25, 1969.  The  resolution,  a copy
of which appears in Appendix A, was delivered to the Secretary  of Health, Education,
and Welfare by the Commissioner of Welfare, State of West Virginia,  shortly there-
after.
     In 1965, as part of a national surveillance program, the Abatement Program,
National Center for Air Pollution Control, initiated an investigation to determine
the nature, source, extent, and effects of air pollution in the Steubenville, Ohio
Weirton, West Virginia - Wheeling, West Virginia interstate area.  Boundaries of the
study area were those of the river valley from Powhatan Point,  Ohio upriver to, and
including, the City of New Cumberland, West Virginia.
     The initial investigation was conducted from October 1965  through  November 1966.
During this period air quality and meteorological data and an emissions inventory
were acquired, and air pollution effects on vegetation were determined.
     Following the completion of the data-gathering phase of the investigation,
significant changes in the area's industrial patterns occurred  because  of the ex-
pansion and relocation of existing plants and establishment of  new plants.  To  de-
termine changes in the quantity and distribution of air contaminants in the study
area, additional air quality measurements were made and the emissions inventory up-
dated during the spring of 1968.
     On April 22, 1969, following receipt of the request by the City of New Cumber-
land for an interstate air pollution abatement action under the provisions  of Air
Quality Act of 1967, National Air Pollution Control Administration representatives
met with officials of the West Virginia Air Pollution Control Commission and the
Ohio Department of Health concerning an abatement conference.  On May 1, 1969,  Com-
missioner John T. Middleton of the National Air Pollution Control Administration
announced that an abatement conference would be held in July concerning interstate
air pollution in the Knox Township, Ohio-New Cumberland, West Virginia, area shown
in Figure 2.  This technical report has been prepared for use at this conference.

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                                                 WEST VIRGINIA
KNOX TOWNSHIP
                           TORONTO^N
                            POWER
                            PLANT
  Figure  2.   New  Cumberland, West, Virginia - Knox Township, Ohio,
             abatement  activity area.

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                          III.  DESCRIPTION  OF THE AREA
DEMOGRAPHY
     The river community of New Cumberland, West Virginia, has  a  current  population
of 2,076 and is the county seat of Hancock County.   Nearly a century ago, New
Cumberland was the largest, wealthiest, and most influential town in the  area.  The
discovery of clay led to the development of New Cumberland's early fire brick
industry.  Steel and coal firms and a large pottery plant were  also located  in  the
area.  Fires and repeated floods in the early part of the 20th  Century, however,
eventually eliminated most of the industrial  firms from the town  proper.   While the
city has not realized in recent years the industrial and population growth experi-
enced in other areas of the upper Ohio River Valley, it remains a pleasant residen-
tial community, many residents of which are employed elsewhere.
TOPOGRAPHY
     The dominant topographic feature in the New Cumberland-Toronto area  is  the
Ohio River Valley, which is oriented northwest to southeast along this  section  of
the Ohio River.  At Toronto, the river and its valley make a gentle curve to the
south and south-southwest.  The river has a normal  pool elevation of 644  feet above
mean sea level and is uniformly 1/4 mile wide.  The flood plain or valley floor, on
which the major portions of the two communities and sources of  pollution  are located,
is about 60 feet above the river.  The width of the valley floor  is from  1/2 to 3/4
mile.  The western foothills of the Appalachian Mountains rise  sharply  from  the
flood plain.  Their crests exceed 1,200 feet above mean sea level, and  500 feet
above the valley floor.
     About 1.3 mile southwest of the Toronto Power Plant, Croxton Run forms  a narrow
valley that breaks through the ridge on the Ohio side.  The run enters  the Ohio
River 1/4 mile south of the power plarit.  On the West Virginia  side, Hardin  Run
forms a similar valley just east of New Cumberland.  Hardin Run flows along  the
northern periphery of New Cumberland and enters the Ohio River  upstream from the
city.
     In summary, this portion of the Ohio River Valley is a U-shaped trench, 400 to
500 feet deep and 3/4 to 1-1/4 mile wide.  On either side of the  valley,  the terrain
is basically a plateau, irregularly cut by the narrow valleys of  small  streams.
Ridges between the streams are, like the ridges adjacent to the river,  about 1,200
feet above mean sea level.

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     Valleys have a significant influence on the transport and dispersion of air
pollutants.  The extent of this influence depends on their shape and depth.   The
valley influence is particularly important near New Cumberland because most  pollution
sources and most of the population are situated adjacent to the river, within the
val 1 ey.
CLIMATOLOGY
     Climatology of the area is typified by cold winters, humid summers, stormy
springs, and fair falls.  The winter cold is frequently interrupted by invasions of
warm air from the Gulf of Mexico.  These events are associated with frequent windy,
stormy periods that continue well into the spring.  Summers are warm and humid, with
occasional incursions of cool air.  The fall season is characterized by lengthy
periods of fair weather, with warm days and cool nights.
     Precipitation is uniformly distributed throughout the year.  About one-fourth
of the winter precipitation occurs as snow.
     Sunshine occurs 50 percent or more of the time from April to October, but in
winter, storms, hilly terrain, and the nearby Great Lakes combine to produce a high
frequency of cloudiness.
     The atmosphere disperses and dilutes pollutants emitted into it.  The rate at
which dispersion and dilution occur is dependent on wind speed and atmospheric
turbulence.  Meteorological factors that are indicators of the dilution climate are
speed and direction of the wind, atmospheric stability, and the incidence of stag-
nation.  A long-term assessment of these factors is provided for the New Cumberland
area in Appendix B.
     Winds are channelled and their average speed is reduced in valleys.  Both
factors adversely affect the rate at which pollution is dispersed.  From data
collected a few miles downstream, it is reasonable to assume that in the New Cumber-
land area:
     1.  Wind is most frequently parallel to the valley, from the south and south-
east and from the northwest.
     2.  Wind speeds in the valley average about 60 percent of the wind speed obser-
ved at ridge level, as represented by the wind speed at Wheeling West Virginia Air-
port.  The difference between wind speed in the valley and on the ridge is greatest
at night.
     The stability of the air, as measured by rate of change of temperature with
height, influences the rate at which contaminants are dispersed.  Pollutants are
dispersed more quickly with unstable than with stable conditions.  In the valley,
along the upper Ohio River, stable conditions prevail about 20 percent of the time

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and unstable conditions about 50 percent of the time.  Intermediate conditions  of
stability exist the remaining 30 percent of the time.  Stable conditions occur  least
frequently during the winter.  During the nighttime hours of summer and fall, they
prevail from one-third to one-half the time.
     Stagnations are prolonged periods of poor dispersion.  In the New Cumberland
area, stagnations lasting 4 days or more occur about twice a year.  About once  in 5
years a 7-day stagnation occurs.
     Problems arise  when pollutants are emitted in a narrow valley below the  level
of the surrounding ridges.  When the wind speed at ridge level is strong and its
direction is perpendicular to the valley, complicated flow patterns may develop,
bringing a plume quickly to the ground.  Because the plume reaches ground level
before dispersion processes have diluted the effluents, levels of air contamination
may be extremely high.
     If a stable layer exists slightly above the level at which effluents are emitted,
and the wind below the stable layer is light and its direction parallel to the  valley,
a plume is likely to be confined to the valley and in and below the stable layer,
which frequently may be near the elevation of the surrounding ridges.  Because  little
air is available to mix with the effluents, high pollution levels may develop.
     The New Cumberland area experiences both of these weather situations and  the
air quality of part, or all, of New Cumberland may be seriously degraded when  they
prevai1.

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                    IV. DESCRIPTION OF THE  TORONTO PLANT
     The Toronto Power Plant is  a  part  of the Ohio  Edison Company power system. The
generating capacity of the plant is  315,750  kilowatts.   It constitutes about 12 per-
cent of the Company's total  generating  capacity, which is reported by the Federal
Power Commission to be 2,663,340 kilowatts.
PLANT FACILITY
     The power plant consists of 11  pulverized-coal-fired boilers, one of which,
unit No. 6, has been retired. The first  four units were placed into operation in
1925.  Additional  units were added over a 24-year period.  The last two units, 10
and 11, were added in 1949.   Table 1  presents pertinent data on each unit.  Data on
dust collectors and stacks are shown in Table  2.
     The boilers are housed in a building estimated to be about 380 feet long, 180
feet wide, and 115 feet high. Each  boiler has  a stack.  Units 1 through 9 have
stacks 134 feet high, and units  10 and  11 have  stacks 171 feet high.  Good engineer-
ing practice recommends that stacks  be  at least 2 - 1/2  times as high as the nearby
buildings to minimize aerodynamic  effects of the building on the plume.  Aerodynamic
effects as discussed in Appendix B can  cause the plume to be caught in the lee of
the building and brought  quickly to  the ground.  The Toronto plant does not meet
this engineering criterion.   It  stacks  are about 1.2 and 1.5 times the height of
the building.
PLANT OPERATION
     The plant is classified as  a  base, peaking, and standby plant.  Consequently
its operations are highly variable.   It annually generates about 29 percent of its
theoretical capability (Table 3).  Table  4 shows monthly power generation and coal
consumption.  The plant is operated  more  during the colder months than during the
warmer months; however, a pattern  is not  well established.  Table 5 provides data
on plant operation when the entire system of Ohio Edison Company experiences peak
demand.
     The unit cost per kilowatt-hour generated  at each of the company's plants is
given in Table 6.
EMISSIONS
     Gaseous air pollutants from the Toronto Power  Plant include sulfur oxides,
nitrogen oxides, and carbon monoxide.   Solid materials discharged by the plant
                                        11

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                                   Table 1.   TORONTO PLANT BOILER DATAC
Boi ler
number
1-4
5°
7, 8C
9
10, 11
Number of
boi lers
4
1
2
1
2
Year
instal led
1925
1927
1928
1940
1949
Manufacturer
Babcock 5
Wi Icox
Springfield
Babcock 6
Wi Icox
Babcock &
W i 1 cox
Babcock 6
W i 1 cox
Kind
of fuel
Pul veri zed
coal
Pul veri zed
coal
Pul veri zed
coal
Pulverized
coal
Pulverized
coal
Fi ri ng,
method
Wet
bottom
Wet
bottom
Wet
bottom
Wet
bottom
Dry
bottom
Rated
pressure,
psig
385
400
425
900
925
Rated steam
temperature,
°F
700
700
700
900
900
Rated steam
capaci ty ,
Ib/hr
250,000
300,000
300,000
400,000
600,000
Data taken from FPC Form 1,  19&8,  and FPC Form 12,  1965.
Industrial questionnaire, Steubenvi1le-Wierton-Wheeling Abatement  Activity.
Number 6 Boiler Retired, stack still  in place between  stacks  number  5  and  7-

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                    Table 2.  TORONTO PLANT FLY ASH COLLECTOR AND STACK DATA3
Boiler
number
1-4

5,7,8c

9

10,11

Number
of
boi lers
4

3

1

2

Col lectors
Type
Tubular
mechanical
Tubular
mechanical
Tubular
mechanical
Tubular
mechanical
Manufacturer
Aerotec

Aerotec

American
Blower
Western
Precipi tator
Year
instal led
1952-53

1952-53

1943

1949

Design
efficiency,
percent
90.5

91.1

80.0

85.0

Stacks
Height ,
feet
134

134

134

171

Exit
inside ,
diameter ,
feet
9-5/12

9-10/12

14-5/12

14

Exit gas
temperature,
0 F
460

425

350

315

Flow
vol ume,
acfm per
boi ler
135,000

150,000

220,000

282,000

Industrial questionnaire, Steubenvi1)e-Wierton-Wheeling Abatement  Activity.



Telephone communication,  Ohio Edison  Company,  June 14,  1968.



Boiler No. 6 retired,  stack still  in  place between stacks  number 5 and  7-

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include fly ash, carbonaceous compounds formed during the combustion process,  and
unburned coal.
             Table  3-   COMPARISON  OF  POWER  GENERATION WITH THEORETICAL
          NET PLANT CAPABILITY  FOR TORONTO  POWER  PLANT,  1965 THROUGH  1968

Annual net generation,
106 kw-hr
Theoretical net plant
capability,3 10 kw-hr
Percent of theoretical
1965
600.4
2658.7
22.6
1966
756.9
2658.7
28.5
1967
789.4
2658.7
29.7
1968
772.7
2665. 9b
29.0
           Data  taken  from  FPC  Form  12,  Schedule  1.

           Includes  February  29.
     Emissions of particulate matter and sulfur oxides from the Toronto Power Plant
are estimated at 7,000 and 23,500 tons respectively for 1968.   Table 7 shows  par-
ticulate and sulfur-oxide emissions from individual Toronto Power Plant boilers
during operations at a net plant capability of 303,500 kilowatts.  Under these con-
ditions particulate and sulfur-oxide emissions would be 2.2 and 11  tons per hour
respectively.  Although there is no evidence that the plant is ever operated  at  the
303,500 kilowatt level it is assumed that the net plant capability rating indicates
that this is a possibility should operations be required.
     Figure 3 shows a grade efficiency curve for a high-efficiency multiple-cyclone
collector and Figure 4 shows a fly ash size distribution that might be expected
from a pulverized-coal-fired boiler.  Analysis of this data indicates that effi-
ciencies of the gas cleaning equipment at the Toronto Power Plant may be less than
the design values used for particulate emission estimates.   Figure 4 also shows  a
typical size distribution that might be expected for fly ash leaving a multiple-
cyclone collector.  Soot blowing and/or malfunction of the  dust collectors would in-
crease the size and quantity of particulate emissions.
14

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                  Table 4.  MONTHLY POWER GENERATION AND COAL CONSUMPTION FOR TORONTO POWER PLANT
Month
1
2
3
4
5
6
7
8
9
10
11
12
Total
1965
Electricity
generated,
103 kw-hr
49,572
53,848
59,523
33,075
47,433
54,334
48,038
42,707
60,239
52,768
48,014
50,850
600,401
Coal
burned,
tons
28,380
31,201
33,548
18,969
26,506
29,672
27,096
24,728
36,173
30,996
29,821
31,5)0
348,600
1966
Electricity
generated ,
103 kw-hr
64,672
65,496
68,485
50,881
55,750
71,235
50,727
57,254
60,821
62,780
71,335
77,446
756,882
Coal
burned ,
tons
41,979
43,193
42,695
31,313
34,633
45,049
33,428
35,695
38,090
37,536
46,248
49,598
480,187
1967
Electric! ty
generated ,
103 kw-hr
67,229
67,576
71,024
56,100
55,595
62,093
50,253
60,979
61,267
82,503
82,924
71,888
789,431
Coal
burned ,
tons
45,143
43,393
44,875
34,795
34,638
42,235
31,743
39,164
36,817
53,301
53,955
47,580
507,639
1968
Electric! ty
generated ,
103 kw-hr
89,508
77,460
67,053
56,139
63,841
61,214
47,168
64,172
46,107
64,048
57,687
78,321
772,718
Coal
burned ,
tons
59,737
50,157
41,850
35,060
42,007
39,394
29,814
41,852
28,262
40,083
35,595
50,347
494,158
1969
Electricity
generated,
103 kw-hr
72,341
53,893
67,446










Coal
burned ,
tons
48,077
34,147
41,062










en

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Table 5.  COMPARISON OF TORONTO POWER PLANT AND OTHER OHIO EDISON  COMPANY  SYSTEM  POWER  PLANT  OPERATIONS
                              AT TIME OF PEAK DEMAND, 1965 THROUGH 1968^
Plant
1965
Installed generating
capacity, kw
Instal led capaci ty
connected to load,
kw
Net plant
capabi 1 i ty , kw
Net demand on
plant, kw
1966
Installed generating
capacity, kw
Installed capacity
connected to load,
kw
Net plant
capab i 1 i ty , kw
Net demand on
plant, kw
196?
Installed generating
capacity, kw
Instal led capaci ty
connected to load,
kw
Net plant
capabi 1 i ty , kw
Toronto

315,750

175,750


303,500

163,500


315,750

315,750


303,500

277,400


315,750

280,750


303,500

R.E.
Burger

544,000

544,000


516,500

501,700


544,000

544,000


516,500

524,200


544,000

544,000


516,500

Edge-
water

192,870

167,870


180,500

128,300


192,870

192,870


180,500

174,600


192,870

167,870


180,500

Gorge

87,500

87,500


87,000

83,800


87,500

87,500


87,000

87,400


87,500

87,500


87,000

Mad
River

75,000

50,000


65,500

38,600


75,000

75,000


65,500

51,800


75,000

75,000


65,500

Mahoni ng-
si de

87,420

0


81,500

0


87,420

0


81,500

0


87,420

68,670


81,500

Miles

250,000

250,000


213,000

206,600


250,000

250,000


213,000

195,100


250,000

250,000


213,000

Rockaway

13,000

0


11 ,000

0


13,000

0


11 ,000

0


13,000

0


11,000

W.H.
Sammi s

740,000

740,000


706,000

700,500


740,000

740,000


706,000

740,100


1,057,500

740,000


706,000

Scioto

40,300

0


39,500

0


40,300

0


39,500

0


40,300

0


39,500

Total

2,345,840

2,015,120


2,204,000

1,823,000


2,345,840

2,205,120


2,204,000

2,050,600


2,663,340

2,213,790


2,204,000


-------
Table 5 (continued)
COMPARISON OF TORONTO POWER PLANT AND OTHER OHIO EDISON COMPANY SYSTEM POWER PLANT OPERATIONS
              AT TIME OF PEAK DEMAND, 1965 THROUGH 1968a
Plant
Net demand on
plant, kw
1968
Installed generating
capacity, kw
1 nstal led capaci ty
connected to load,
kw
Net plant
capabi 1 i ty , kw
Net demand on
plant, kw
Toronto
230,000

315,750
280,750
315,000
242,000
R.E.
Burger
489,000

544,000
544,000
541,000
499,000
Edge-
water
140,000

174,870
174,870
187,000
141,000
Gorge
74,000

87,500
87,500
90,000
84,000
Mad
River
36,000

75,000
75,000
69,000
57,000
Mahon ing-
side
25,000

Retired
12/30/68
84,000
0
Ni les
2)0,000

250,000
250,000
222,000
221,000
Rockaway
0

Retired
12/30/68
11 ,000
0
W.H.
Sammis
719,000

1,057,500
1,057,500
1 ,056,000
732,000
Scioto
0

Reti red
12/30/68
41 ,000
0
Total


2,504,620
2,469,620
2,616,000
1,976,000
Data taken from FPC Form 12.

-------
                      Table 6.   OHIO EDISON PRODUCTION  EXPENSES
                                   BY PLANT, 1968a
Plant location
Toronto
R. E. Burger
Edgewater
Gorge
Mad River
Niles
Mahoningside'5
W. H. Sammis
Total production expenses,
mills/net kw-hr
5.60
3-17
i».58
5-80
8.80
3.20
12.19
2.24
aTaken from FPC Form 1 .
                  Operations  discontinued  December  30,  1968.
18

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Table  7.   EMISSION  RATE  ESTIMATES  FOR TORONTO  POWER  PLANT  BOILERS  AT  FULL  LOAD  AT  NET  PLANT  CAPABILITY
Boiler
number
1
2
3
It
5
7
8
9
10
11
Totals
Estimated
coal
consumption,3
tons/hr
16
16
16
16
16
16
16
21
30
30
193
Coal
type
Wet bottom
Wet bottom
Wet bottom
Wet bottom
Wet bottom
Wet bottom
Wet bottom
Wet bottom
Dry bottom
Dry bottom

Part iculate
emission
factor, b>c
Ib/ton
169
169
169
169
169
169
169
169
221
221

Uncontrol led
part iculate
emissions ,
Ib/hr
2,700
2,700
2,700
2,700
2,700
2,700
2,700
3,550
6,630
6,630
35,710
Col lector
efficiency, d
percent
90.5
90.5
90.5
90.1
91.1
91.1
91.1
80.0
85.0
85.0

Part iculate
control led
emiss ions,
Ib/hr
244
244
244
244
2^0
240
240
710
995
995
A, 396
Sulfur
oxide
emissions, b>e
Ib/hr
1,824
1,824
1,824
1,824
1,824
1,824
1,824
2,394
3,420
3,420
22,002
 Based  on  operation  at  net  plant  capability of  303,500  kw and  fuel consumption of  14,240  Btu/kw-hr.

 Data  taken  from Duprey,  R.  L., Compilation of  Air  Pollutant Emission  Factors, Public Health Service
 publication 999-AP-42,  Durham, N.  C.,  1968.

"Coal  ash  content,  13 percent.

 Data  taken  from Table  2.
a
"Coal  sulfur  content,  3  percent.

-------
  u
  z
  UJ

  u
  u_
  z
  o
  u
  UJ
  o
  u
                      40
                             60      80      100     120     140

                                  PARTICLE DIAMETER, microns
                                                                  160
                                                                         180
                                                                                200
          Figure  3.   Grade  efficiency curve for a high-efficiency multiple-
                     cyclone  collector.
     100
      so
   <
   Q
   UJ
   _l
   o
   H
   cc

   CL
      10
	CRITERIA FOR THE APPLICATION
      OF DUST COLLECTORS TO COAL-
      FIRED BOILERS - IGCI-ABMA, 1965

	 CALCULATED FROM FIGURE 3
      AND CURVE 1.
       0.01     0.1
                   0.5 1   2    5   10   20    40    60    80      95  98 99

                       WEIGHT PERCENT LESS THAN INDICATED VALUE

        Figure 4.  Particle  size distribution  for fly ash from a pulverized-
                   coal-fired  boiler  and  a high-efficiency multiple-cyclone
                   fly-ash collector.
                                                             99.9   99.99
20

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                            V.  ASSESSMENT OF PROBLEM
     As early as 1959, air quality data obtained from a survey  conducted by a
private organization clearly showed excessive levels of particulate  pollution in New
Cumberland.2   A summary of the data is shown in Table 8.   Interstate and intercity
transport of pollution was noted in the report:
     A residential town of 2,000 population, New Cumberland does  almost
     nothing within its own city limits to pollute the air.  The  strictest
     town ordinance, enforced with the utmost severity, would accomplish
     very little.  Yet the air over New Cumberland showed  more  than  average
     pollution in dustfall, suspended-matter, and haze coefficient alike,
     even when compared with other heavily polluted towns  of the  area?

Table 8.  SUMMARY OF CONSUMERS UNION'S AIR POLLUTION DATA, UPPER  OHIO RIVER VALLEY,
                               NOVEMBER-DECEMBER 1959
Location
New Cumberland, W. Va.
Dustfall ,
tons /mi -mo
178
Suspended matter,
ug/m3
Min.
72
Max.
55k
Avg
263
Soi 1 ing index,3
COHS/1000 lineal ft
k.l
 Or "haze coefficient."

     Based on preliminary information and observations  indicating  potential inter-
state air pollution problems of serious magnitude in New Cumberland and other river
communities in the area, a federally initiated survey was made  in  the Steubenville,
Ohio   Weirton, West Virginia - Wheeling, West Virginia area.   The survey was con-
ducted by the National Air Pollution Control  Administration  during the period Octo-
ber 1965 to September 1966 and February 1968  to June 1968.
     An appraisal of air quality and effects  of air pollution in New Cumberland were
included in the survey, which covered 18 communities on both sides of the Ohio River.
Air quality measurements were made at two sites in New  Cumberland; the Post Office
building on Ridge Avenue and City Hall  on Jefferson Street.  An examination of
indigenous vegetation was made in New Cumberland in the spring  of  1966, and a vegata-
tion exposure chamber to assess air pollution damage to sensitive  plant varieties
was placed at the Post Office building  for a  6-week period,  May 17 to July 8, 1966.
The results of these tests and data from a later short-term  survey applicable to
present conditions in New Cumberland are presented and  discussed.
                                        21

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 AIR  QUALITY  DATA
      Because of the magnitude  of  potential  emissions  from the Toronto Power Plant,
 the  pollutants of  concern  in New  Cumberland include particulate matter and sulfur
 oxides.  The general  (excluding health) effects that  may be anticipated from pollu-
 tion emissions of  this  type are soiling, lowered visibility, and damage to vegetation
 and  materials.
 Dustfall
      Heavy dustfall generally  in  the city and specifically in the area of New Cumber-
 land nearest the power  plant,  is  of community-wide concern.  The aggravation of dust
 and  grit depositing on  cars, porches, and laundry is  among the major nuisances to
 the  residents.
     Measurements of dustfall were made at the Post Office building and City Hall
 during the NAPCA survey.  The City of New Cumberland  arranged to have the Steuben-
 ville Air Pollution Bureau continue measurements at the two stations as part of a
 regional network.   Data collected by both agencies is summarized in Table 9.
      Table 9.  SETTLEABLE PARTICULATE  (DUSTFALL), NEW CUMBERLAND, WEST VIRGINIA
Station
Post Office


City Hall

Operating
period
11/65-10/66
2/68-5/68
7/68-V693
2/68-5 68
7/68-V693
Number
samples
12
k
10
3
10
Dustfall, tons/mi 2-mo
Min.
value
33
69
75
61
51
Max.
value
98
92
170
106
2^2
Arith
mean
63
78
121
86
114
       Data furnished by Steubenville Air Pollution Bureau.
     Dustfall rates in New Cumberland exceed even the least stringent limits con-
sidered desirable for a residential area by a factor of 4 or 5 times.  Even so, these
measured values may be conservative because they were obtained some distance away
from the area subjected most frequently to the full impact of the power plant plume.
Microscopic Analysis of Dustfall
     A sample of the dustfall was obtained by Mrs. Alice Mitchell, who is a resident
of New Cumberland, and forwarded to the National Air Pollution Control Administration
for analysis.  Mrs. Mitchell stated that the particulate matter had accumulated over
a 1-day period from January 6 to January 7, 1969, on the 4- by 6-foot porch of her
house at 1106 Ridge Avenue, New Cumberland, West Virginia.
 22

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     The sample weighed 81.5 grams (a large handful).  It was mostly inorganic
material containing only 6.6 combustible material on a dry basis.   The sample was
submitted to Mr. J. S. Ferguson of the Environmental Control  Administration,  Con-
sumer Protection and Environmental Health Service, for microscopic examination.
Excluding trace amounts of normal floor sweepings (fibers and wood chips), examina-
tion showed that:
1
         About 10 percent of the particles by number were large, irregularly-shaped
         carbon particles.
         About 30 percent of the particles were magnetic black iron oxide (magnetite,
                spheres.
     3.  About 60 percent of the particles were transparent, translucent, or opaque
         glassy spheres.
     Figure 5 shows a photomicrograph of a representative portion of the sample.
The magnetite and glassy spheres that make up the majority of the sample ranged from
10 to 40 microns in diameter with the greatest number ranging from 10 to 20 microns.
The carbon particles were larger, ranging from 50 to 200 microns in size.  Ninety
percent of the particles by number were smaller than 50 microns and 70 percent were
smaller than 30 microns.
     The high-density black and white spheres that make up the majority of the
sample are distinctly characteristic of fly ash from a pulverized-coal-burning power
plant.  The irregularly  shaped carbon particles in the sample resemble large,
                Figure 5.   Photomicrograph of settled dust sample (77X).
                                                                                 23

-------
partially burned fuel particles.  These particles are not usually characteristic of
emissions from the routine operation of a modern pulverized-coal-fired furnace, but
may be generated in older units during frequent startup periods such as is encoun-
tered in the peaking plant operation.
     On April 25, 1969, grab samples of settled particulate matter were collected at
the Mitchell residence by Division of Abatement staff during short-term air quality
and meteorological field tests.  Deposited dust was readily observed in the neighbor-
hood of the Mitchell residence.
     Sample specimens were removed from an outside window ledge and from the space
between the storm window and the regular window as shown in Figure 6.   The composi-
tion of these samples as determined by microscopic analysis was the same as the
sample collected from the porch by Mrs. Mitchell  on January 7, 1969.
                     Figure  6.   Collection of  settled  dust  sample.
 24

-------
     The dust material collected from an outside window ledge consisted of 80 per-
cent fly ash particles and 20 percent carbon particles.  The sample collected from
space between the storm window contained 70 percent fly ash particles and 30 percent
carbon particles.
     Although the inside and outside windows were closed, wind-blown fly ash parti-
cles had found their way around both closed windows and deposited on the inside
window sill as shown in Figure 7.
                      Figure 7.   Settled dust on inside window sill.
                                                                                  25

-------
Suspended Particulate Matter
     Atmospheric measurements of total suspended particulate matter concentrations
were made at the Post Office building using regular and directional high-volume
samplers.  A directional sampler programmed to operate when the wind was blowing
from the direction of the Toronto Power Plant was operated from October 1965 to
November 1966.  Measurements provided by the sampler were used to determine whether
noticeable increases in particulate matter levels were recorded when conditions con-
ducive to interstate transport of pollutants existed.  Data in Table 10 indicate
that the "in-sector" directional mean value was 75 percent higher than the corres-
ponding "out-sector" mean value.  This data demonstrates significant impact of inter-
state pollution on the New Cumberland receptor area.
                    Table  10.  DIRECTIONAL SUSPENDED PARTICULATES,
                                 POST OFFICE BUILDING
                               (1»8-HOUR SAMPLING  INTERVAL)
                            OCTOBER  1965   NOVEMBER, 1966

Sampl ing mode
In sector
Out sector
Numbe r
samples
89
111
Concentration, yg/m^
Average
276
158
Maximum
1161
51*»
     Conventional suspended particulate matter measurements were made for a limited
period during the 1965-1966 survey and during the spring of 1968.  Measurements were
continued at the station by the Steubenville Air Pollution Bureau through the fall
of 1968.  Table 11 summarizes the 24-hour total suspended particulate data.  Table
12 gives the percent time that specific concentration levels were exceeded.
     Concentrations of suspended particulate matter are high.  Documentation con-
tained in Air Quality Criteria for Particulate Matter3 indicates that adverse health
effects may occur (increased death rates for persons over 50 years of age) when the
annual geometric mean exceeds 80 micrograms per cubic meter (yg/m3).  Adverse effects
on materials were observed when the annual geometric mean exceeded 60 yg/m3 and
visibility was reduced to about 5 miles when a level of about 150 yg/m3 was exceeded.
The annual geometric mean suspended particulate matter concentration at the New
Cumberland site is 154 yg/m3.  This exceeds all of the criteria values listed above.
It exceeds the value for adverse health effects by a factor of nearly 2.  The con-
centration, as shown in Table 12, exceeded 150 yg/m3 over half the time on an annual
basis.
 26

-------
                     Table 11.   CUMULATIVE PERCENT FREQUENCY OF OCCURRENCE OF DAILY-AVERAGE SUSPENDED PARTICULATES,
                                                          POST OFFICE BUILDING
                                                           (24-HOUR SAMPLES)
Operating period
2/20/66-3/V66
1/2/68-5/30/68
8/1/68-12/30/683
2/20/66-12/30/68
Number
obs.
13
kit
18
75
Concentration, yg/m
Min
value
62
3k
6k
3k
Percent of time
concentration exceeded:
90
92
6k
69
69
75
108
88
85
100
50
145
168
118
151
25
280
280
190
235
10
338
k\2
320
345
Max Arith
value mean
352 180
560 202
346 152
560 186
Std
dev
3k
135
83
118
Geom
mean
159
161
134
154
Geom std
dev
1.7
2.0
1.6
1.9
            Data furnished by Steubenville Air Pollution Bureau.
                            Table 12.  PERCENT OF TIME SUSPENDED PARTICULATE CONCENTRATION EXCEEDED
                                             SPECIFIC VALUES,  POST OFFICE BUILDING
                                                      Percent of time concentration exceeded:
Sampl ing period
2/20/66-12/30/68
75 yg/m3
86
100 yg/m3
74
120 yg/m3
64
150 yg/m3
51
200 yg/m3
34
ro

-------
Suspended Particulate Matter - AISI Sampler
     Soiling index of participate pollutants was measured at the  Post  Office
building during the period February to July 1966.   A frequency distribution of the
data is presented in Table 13.  Soiling indices in the heavy category* (2.0 to
2.9 Cons per 1000 lineal  feet) occurred more than 18 percent of the time.
 Sulfur Dioxide
      Sulfur dioxide (S02)  measurements were made  at  the  Post  Office in 1965 and
 1966.   Two-hour average  concentration was  measured  using an automatic sequential
 sampler and West-Gaeke spectrophotometric method of detection.
      Frequency distribution  of the 2-hour  results are  shown in Table  14.  Concen-
 trations  of 0.10 part per million (ppm) or greater  occurred  at  the site at least
 10 percent of the  time.   The maximum  concentration of  0.76  ppm obtained at the New
 Cumberland station on October 31,  1966, was the highest  2-hour value  encountered
 in the operation of the  nine-station  S02 network  during  the 1965-1966 Steubenville
 Weirton   Wheeling survey.
      The  2-hour concentrations were combined for  each  24-hour period  to obtain a
 daily average.   Frequency distributions of these  daily results are tabulated  in
 Table 15.
      In addition to sequential  sulfur dioxide sampling,  monthly  sulfation rates
 were obtained for varying time periods from November 1965 through April 1969  by
 exposing  lead peroxide candles.  These results,  reported in milligrams of sulfur
                                                                 2
 trioxide  (SO,)  per 100 square centimeters  per day,(mg  S0,/100 cm - day), are
 summarized in Table 16.   Applying  a ratio  of approximately  0.04  ppm of SOp for
 each 1.0  mg SO., per day  would mean that S02 levels  for a long-term average would
 be 0.05 to 0.06 ppm, which corresponds well with  the measured S02  levels.

      Concentrations of sulfur dioxide are  high.   Documentation contained in the
 report Air Quality Criteria  for Sulfur Oxides4  indicates that adverse health
 effects were noted when  24-hour average levels  of sulfur dioxide exceeded 0.11 ppm
 for 3 to  4 days and when the annual mean  level  of sulfur dioxide exceeded 0.04 ppm.
      The  report also states  that injury to some species  of  trees and  shrubs was
 noted at  a concentration of  0.3 ppm for 8  hours and  chronic plant  injury and
 excessive leaf drop may  occur at an annual  mean  concentration of 0.03 ppm of  sulfur
 dioxide.   At concentrations  of from 0.3 to 1.0 ppm,  most people  can taste sulfur
 dioxide and at concentrations above 3 ppm  the gas has  a  pungent, irritating odor.
      The  annual mean sulfur  dioxide concentration at New Cumberland is 0.05 ppm.
 This exceeds the criteria listed for  adverse health  effects  (0.04  ppm) and injury
 to vegetation (0.03 ppm).
*State of New Jersey adjectival rating scale.

 28

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                        Table  13.  CUMULATIVE  PERCENT  FREQUENCY  OF  OCCURRENCE  OF  2-HOUR  SOILING  INDEX AVERAGES,
                                                          POST  OFFICE  BUILDING
Operating period
2/20/66-7/31/66
Number
obs
1658
Min
value
0
Soiling index, COHS/1 ,000 lineal feet
Percent of time
concentration exceeded:
90
0.3
75
0.5
50
0.8
25
1.7
10
2.6
1
it. 8
Max
value
8.2
Ari th
mean
1.2
Std
dev
1.0
Geom
mean
0.8
Geom std
dev
2.5
                   Table  14.   CUMULATIVE  PERCENT  FREQUENCY  OF  OCCURRENCE  OF  2-HOUR  SULFUR  DIOXIDE  CONCENTRATIONS,
                                                          POST  OFFICE  BUILDING
Operating period
10/27/65-11/13/66
Number
obs
2888
Min
value
<0.01
Concentration, p'pm
Percent of time
concentration exceeded:
90
0.01
75
0.02
50
0.03
25
0.06
10
0.12
1
0.33
Max
val ue
0.76
Ari th
mean
0.05
Std
dev
0.07
Geom
mean
0.03
Geom std
dev
3-3
IS)
<£>
                    Table  15.   CUMULATIVE  PERCENT  FREQUENCY  OF  OCCURRENCE  OF 24-HOUR  SULFUR  DIOXIDE  CONCENTRATIONS,
                                                          POST OFFICE  BUILDING
Operating period
10/27/65-11/13/66
Number
obs
249
Min
value
0.01
Concentration, ppm
Percent of time
concentration exceeded:
90
0.01
75
0.02
50
0.04
25
0.06
10
0.10
1
0.22
Max
value
0.22
Ari th
mean
0.05
Std
dev
0.04
Geom
mean
0.0k
Geom std
dev
2.5

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                         Table  16.  SULFATION MEASUREMENTS



Station location
Post Office



City Building




Operating
period
11/65-10/66
2/68-5/68
8/68-3/69a
11/65-3/69
2/68-5/68
7/68-3/69a
2/68-3/69


No.
obs
12
4
8
2k
3
9
12
Sulfation,
mg SO,/ 100 cm2-day
Min.
val ue
0.7
0.9
0.6
0.6
1.7
0.4
0.4
Max.
value
2.1
1.6
1.9
2.1
1.9
2.9
2.9
Arith.
mean
1.4
1.4
1.3
1.4
1.8
1.4
1.5
         Data  furnished by Steubenville Air Pollution Bureau.
     Information provided by calculations of the contribution of the Toronto Power
Plant to the pollution of New Cumberland, suggests that the sulfur dioxide problem
is most likely the result of frequent incidents of short-term high concentration
rather than sustained high levels.  Data obtained in New Cumberland from a con-
tinuous sulfur dioxide analyzer mounted in a mobile vehicle for a 2-day test
period on April 24 and 25, 1969, demonstrate this condition.  Instantaneous peak
concentrations of nearly 2 ppm sulfur dioxide were recorded when elements of the
Toronto Power Plant plume were brought to the ground by brisk and varying winds
on April 25, 1969.  It is probably that even higher short-term levels would occur
under the right meteorological conditions.
Opacity Observations
     The Toronto Power Plant is a major source of visible emissions.  Plumes from
the several stacks often merge and form a single large persistent plume that is
evident to the most casual passerby, as shown in Figure 8.
     On April 24, 1969, a trained smoke observer made three observations of the
plume opacity between 2:53 p.m. and 3:51 p.m. EST.  The observer took care to
insure that observations were made with the sun to his back.  At the same time,
weather observations were taken at New Cumberland's little league baseball park
about 1/2 mile upriver from the power plant.
     At the time the opacity observations were taken, the sky was partly cloudy.
The clouds were estimated to be 3,000 feet above the ground and from 60 to 90
percent of the sky was covered.  Visibility was 10 miles in all directions except
to the south, where it was much less.  The wind measured at the surface on a
CLIMET wind sensor was from the north at 7 miles per hour (mph).  The weather
observer made an upper wind observation at 4:00 p.m. and found the wind at 170
30

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               Figure 8.  Visible emissions from Toronto Power Plant.

feet (about the height of the plant's taller stacks) to be from the north at
11 mph.  At 500 feet elevation, the height of the surrounding ridges, the wind was
from the north at 17 mph.  Weather conditions were extremely favorable for the
rapid dispersion of effluents from the plant.
     The opacity of the individual  plumes as shown in Table 17 ranged from 75 to
95 percent.  The color of the plumes ranged from tan or light gray to black.   In
general the plumes from the older units (units 1 through 4) were more opaque than
the plumes from the newer units.
EFFECTS OF POLLUTION
Plant Damage
     A survey of the effect of air pollutants on vegetation was made by a plant
pathologist at New Cumberland in 1966 and early in 1969.  The survey was performed
by inspecting indigenous vegetation for damage during growing seasons in 1966
and 1969 and by growing sensitive varieties of plants under controlled conditions
                                                                                 31

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CO
ro
                        Table 1?. RECORD OF OPACITY OBSERVATIONS FOR TORONTO PLANT BOILER STACKS, APRIL 2k, 1969
Stack number
Observation number 1
Equivalent opacity
of emiss ion, %
Color of plume
Observation number 2
Equivalent opacity
of emission, %
Color of plume

Observation number 3
Equivalent opaci ty
of emission, %
Color of plume
1
90
Light
gray
95
Light to
dark
gray
95
Black
2
90
Light
gray
95
Light to
dark
gray
95
Black
3
90
Light
gray
90
Light to
dark
gray
90
Near
black
k
80
Light
gray
90
Light to
dark
gray
90
Near
black
5
0
"•
0
-

0
-
6
0
*™
0
-

0
-
7
80
Light
gray
80
Light to
dark
gray
75
Dark
gray
8
90
Light
gray
80
Light to
dark
gray
75
Dark
gray
9
90
Light
gray
80
Dark
gray

85
Black
10
80
Light
brown
75
Light
gray

80
Tan
11
80
Light
brown
90
Tan

80
Tan
               Toronto Power Plant stacks are numbered 1  through 11 from South (downriver) to North (upriver).

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at New Cumberland Post Office.  Plants have been used extensively in air quality
                   5~9
monitoring programs.
     The survey, which involved exposure of selected plant varieties under
controlled conditions, was performed from May 17 to July 8, 1966.  Several  vegeta-
tion growth chambers were located in the upper Ohio River Valley; one of these was
placed at the Post Office building in New Cumberland.  All chambers were equipped
with fans that change the air in the chamber about once every minute.  In a
"control" chamber located in Moundsville, West Virginia, air was first drawn
through an activated charcoal filter which effectively absorbed most contaminants.
The "ambient" chambers did not have a filter, and plants grown in them were
exposed to unfiltered air.
     Tobacco Wg, pinto bean, petunia, columbine, begonia, cotton, geranium, and
gladiolus plants were exposed.  All similar species were of the same age when
they were placed in the chambers.  The plants were grown hydroponically in pots
of vermiculite.  The pots were placed in shallow trays, to which Hoagland nutrient
solution and distilled water were added.  The vermiculite was flushed with distilled
water and the nutrient solution was replaced weekly.  Distilled water was added as
needed.
     The plants were minutely and carefully examined each week for damage.  They
also were inspected less rigorously each time they were tended, five or six times
a week.
Results of Survey - Inspections of indigenous vegetation for damage by air contami-
nants were made on June 1 and June 29, 1966 and on May 5, 1969.  In 1966, severe
damage attributed to sulfur dioxide was found on forsythia, maple, climbing rose,
petunia, and geranium plants grown in New Cumberland northeast of the Toronto  Power
Plant.  Damage to maple leaves is shown in Figure 9.  Oxidant damage was observed on
beets and petunias grown near the New Cumberland Post Office.  In 1969, sulfur
dioxide damage was observed on ivy, spruce, azaleas, roses, magnolias, and tulips on
Ridge Avenue, New Cumberland.  Table 18 summarizes the damage found.
     No damage was observed on plants grown in the control chamber located in
Moundsville, West Virginia.  Damage to plants grown  in the ambient chamber in New
Cumberland was attributed to a variety of contaminants:  sulfur dioxide, ozone,
peroxy acetal nitrates  (PAN), and synergistic action of low concentrations of
sulfur dioxide and ozone and other pollutants.  Table 19 summarizes the results
of damage to plants grown in the ambient air chamber.  If type of injury could be
specifically assigned to a certain pollutant, it is  attributed to that pollutant.
If the type of damage was non-specific, it is listed according to the type of
damage, such as "chlorosis."
                                                                                33

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    Figure 9.  Sulfur dioxide injury to maple leaves in New Cumberland, W. Va.


     In addition to the destruction of tissue, plants in the ambient air chamber
grew much less rapidly than plants in the control chamber.  Table 20 presents the
percentage by which plants in the ambient air chamber were smaller than those in
the control chamber at the end of the 7-week experiment.  All  plants of similar
varieties were the same age.  It is emphasized that all environmental factors were
identical except that the plants in the control  chamber were grown in air from
which essentially all contaminants had been removed.
     Table 21 presents a more detailed analysis  of the damage and growth suppres-
sion observed on tobacco.  Growth suppression of tobacco roots is illustrated in
Figure 10.
Summary - In addition to the cited reports of investigators, the scientific
34

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Table 18.  INJURY FOUND ON INDIGENOUS VEGETATION GROWN  IN  VICINITY
                   NEW CUMBERLAND,  WEST VIRGINIA
Date
5/5/69





6/1/66

6/29/66



Location
Across from Toronto
Power Plant on
Ridge Avenue



Near post office

Across from Toronto
Power Plant


Plant
variety
Engl ish ivy
Blue spruce
Azalea
Magnol ia
Rose bush
Tulip
Beet
Petunia
Forsythia
Maple
Rose bush
Petunia
Pol lutant and
degree of injury
S02 (E)
S02 (E)
S02 (M)
S02 (E)
S02 (E)
S02 (M)
Oxidant (M)
Oxidant (M)
S02 (S)
S02 (S)
S02 (S)
S02 (S)
T = trace, indicates 0 to 5 percent of leaf area injured.
M = moderate, indicates 5 to 25 percent injured.
E = extensive, indicates 25 to 50 percent injured.
S = severe, indicates greater than 50 percent injured.
       Table 19.  SUMMARY OF LEAF DAMAGE ON VEGETATION GROWN
          IN CHAMBER AT NEW CUMBERLAND POST OFFICE,  1966
                                       Contaminant,  type
         Plant                       and severity of damage
Tobacco
Pinto bean
Petunia
Columbine
Begonia
Cotton
Geranium
03 + S02 (E)
03 + PAN (M)
03 + suppression (M)
03 (M)
03 + chlorosis (M)
Chlorosis (M)
Chlorosis (M)
       T = trace, indicates 0 to 5 percent of leaf area
           injured.
       M = moderate,  indicates 5 to 25 percent injured.
       E = extensive, indicates 25 to 50 percent injured.
       S = severe, indicates greater than 50 percent injured,
                                                                         35

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                  Table 20.  GROWTH SUPPRESSION OF PLANTS GROWN IN
                     AMBIENT AIR AT NEW CUMBERLAND POST OFFICE
                               MAY 17   JULY 8, 1966
               Vegetation
               Tobacco
               Pinto bean
               Petunia
               Columbine
               Begonia
               Cotton
               Gerani um
Growth suppression,3 %
          45
          25
          20
          15
          25
          10
          15
                Estimated by visual  comparison.   A value of 25 % in-
                dicates that the growth of a plant in the ambient
                chamber was 25 % less than that  of a similar plant
                grown in control chamber.

                Table 21.  GROWTH SUPPRESSION AND DAMAGE TO TOBACCO
                        EXPOSED FROM MAY 17   JULY 8, 1966,
                           AT NEW CUMBERLAND POST OFFICE

Leaf area damaged, %
Stem diameter, cm
Cross section area of stem,
2
cm
Cross section area of stem,
% less than control
Weight of root system, g
Weight of root system,
% less than control
Exposed plant
45
0.9
0.636
64

120
84

Control
-
1.5
1-767
-

770
-

literature contains many studies that relate plant damage to specific pollutants.
Thomas, Hendrichs, and Hill describe sulfur dioxide damage to plants'.0   Menser11 and
    12
Heck  report that when small amounts of both ozone and sulfur dioxide were present,
damage occurred even though the concentrations were below the damage-threshold for
either alone, suggesting synergistic action.
        A great variety of indigenous plants growing in New Cumberland were found to
36

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                                                NEWf  JMBLR1
        Figure  10.  Roots of tobacco  plant grown in filtered  air  (left) and
                   ambient air (right).
be damaged by sulfur dioxide.  Ozone and PAN  damage was also observed.
     In controlled  vegetation exposure tests  conducted in 1966 at  the New
Cumberland Post Office, plants grown in ambient air suffered damage  to their
leaves that was attributed to sulfur dioxide, ozone, and PAN.   Plants grown in
filtered air were undamaged and were more vigorous, were larger, had more leaves,
and had leaves of darker green than their sister plants raised in  ambient air.
     Results of the vegetation survey show that sufficient quantities of pollution
are present in the  air over New Cumberland to injure plants and inhibit their
growth.
Property Damage
     Particulate fallout in New Cumberland has compelled residents to expend
increased funds and efforts to maintain a reasonably clean and attractive home
environment.   Results of a city-wide opinion survey conducted  by the Mayor's Air
Pollution Committee July 24 through 30, 1968, which appear in  Appendix C, indicate
that the affect of  pollution on property is a major concern to the area's residents.
Among the problems  cited by persons responding to the survey are decreased enjoy-

                                                                              37

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merit of outside  activities because of accumulations of dust and grit on porches,
lawns, and outside  furniture; damage to building materials and painted surfaces;
damage to vegetation; and soiling of laundry.
     Lawn furniture must be cleaned before use or placed under protective cover
when not in use.  Inside furnishings such as drapes, hardwood floors and other
household materials must be cleaned frequently to prevent deterioration.  Dustfall
stains and darkens  roofs and accumulates in gutters and drain pipes, hastening
deterioration.   Newly painted surfaces are quickly soiled, imparting a dingy
appearance to structures in the area.
     Figure 11 shows soiling effect of particulates on a residential structure on
Ridge Avenue.  To preserve the appearance and value of the property, the owner has
been washing the exterior walls every year and repainting every 2 years.
     Residents also express difficulty in maintaining healthy and vigorous
ornamental plantings.  Flowers and shrubbery are rendered unattractive by general
dirtiness of petals and leaves.
38

-------
Figure 11.   Some soiling shown by partially  cleaned  exterior wall  of
            residence in New Cumberland,  W.  Va.
                                                                          39

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 VI.  CALCULATED IMPACT  OF TORONTO POWER PLANT  ON  NEW CUMBERLAND
     The contribution of the Toronto  Power  Plant  to the air pollution of New
Cumberland was calculated by using  the  diffusion  equation of Pasquill, as modified
by Gifford. '    Effective plume heights were determined by means of the Holland
                    15
plume-rise equation.    Pollutant concentrations that would occur at time periods
of about 15 to 30 minutes were calculated.   Concentrations averaged for a longer
time period would be somewhat lower.
     The Toronto Power Plant operates  a  portion of the time as a "peaking" plant,
that is, a plant that operates only  during  periods when the demand for power is
high or when other power plants in the system are unable to meet the demand for
power.  Pollutant concentrations estimated  on the basis of average annual emissions
would not represent the emissions of the plant over periods of a few days or weeks.
An equally serious misrepresentation would  arise if the operation of the plant
were in some way weather-sensitive,  or if it operated primarily during daytime or
nighttime or during the winter, when winds  are strongest and dispersion best, or
during the fall, when stagnations are  most  frequent.  In addition, the plant may
operate the larger units more often  than the smaller units.  The effective height
of the emissions is greater for the  larger  units than that from the smaller units;
therefore, plumes from the larger units  have a somewhat better opportunity to
disperse before they reach ground-level  receptors.
     Calculations were made for four locations in New Cumberland:  (1) south New
Cumberland, 0.5 kilometer on a bearing of 55 degrees from the plant; (2) central
New Cumberland, 1.0 kilometer on a bearing  of 360 degrees from the plant; (3) the
City Building, 1.5 kilometers on a bearing  of 340 degrees from the plant; (4) the
ridge above New Cumberland, 2.0 kilometers  on a bearing of 355 degrees from the
plant and 290 feet above the base1 elevation of the stacks.  The four locations,
shown in Figure 12, constitute representative areas of New Cumberland.  The power
plant is located so close to the southern edge of the city, and the hills channel
the airflow so markedly that the impact  of  plant emissions on different portions
of New Cumberland varies dramatically  with  wind direction and atmospheric
stability.
     Pollutant concentrations were calculated for each receptor point for several
typical wind speed and atmospheric stability conditions; the wind direction was
assumed to cause the plume to travel directly from the source to the receptor.
                                        41

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                                                                    •




X~~~"

\





     Figure 12.  Topography of air pollution abatement activity area and
                 locations for which pollutant concentrations were calculated.
42

-------
 This  concentration,  called  the  "center!ine  concentration," was multiplied by a
 factor  of 0.7  to  account  for  the meander of the  plume  caused  by  the normal varia-
 tion  in wind direction.   The  results,  presented  in Table 22 for  particulate matter,
 are calculated pollutant  concentrations for periods of about  30  to 60 minutes.

      Table 22.  CALCULATED CENTERLINE CONCENTRATIONS  FROM TORONTO POWER PLANT
                          FOR VARIOUS STABILITY CONDITIONS
Receptor
South
New Cumberland


Central
New Cumberland



City Hall



Ridge



Distance,
km
0.5




1.0 '



1.5



2.0



Wind
di rection
SW




S



SSE



S



Stabi 1 ity
class
Slightly
unstable
Neutral
Stable

SI ightly
unstable
Neutral
Stable
SI ightly
unstable
Neutral
Stable
Slightly
unstable
Neutral
Stable
All units
Part, S02,
yg/m3 ppm
301 0.69

20 0.06
a b

1,629 3.39

235 0.55
a b
1,564 3.07

615 1.49
11 b
1,771 3.30

5,887 11.14
10,381 22.17
Unit 11 only
Part S02,
yg/m3 ppm
a b

a b
a b

188 0.24

a b
a b
266 0.34

31 0.04
a b
392 0.50

1,205 1.54
927 1.18
a = <10 pg/m3.
b = <0.02 ppm.

      Graphs  showing frequency of wind direction  by speed  classes  (wind  roses) were
 constructed  for warm and cold seasons and for daytime and nighttime  periods.  The
 wind data were then related to the  occurrence of various  stability classes  from
 data available for nearby Shippingport,  Pennsylvania, for comparable periods.   The
 frequency that each set of atmospheric conditions prevailed could then  be estimated
 with more reliability.   These frequencies were used to weight  the short-term  con-
 centrations  calculated  for each set of meteorological conditions  to  provide annual
 mean pollution concentrations for each receptor  point.
      Two important additional  assumptions were involved:   (1)  wind speeds near  New
 Cumberland were distributed similarly to wind speeds at Steubenville, and (2)
 distribution of wind directions at  Steubenville  would represent the  distribution

-------
 in  New  Cumberland,  if  the  Steubenville wind  rose, shown  in  Figure 13, were rotated
 22-1/2  degrees  (one compass  point)  counterclockwise.  The latter assumption was
 made  to adjust  for  the difference  in orientation of the  valley at New Cumberland
 and at  Steubenville -  a point  that  is discussed in Appendix B.
      The monthly  coal  consumption  (and emissions) of  the Toronto Power Plant
 varies  by a  factor  of  about  2  (Table 4).  Consumption tends to be greater during
 the cold months,  but the pattern is not  highly consistent.  Calculations were
 therefore based on  two circumstances:  (1) all units  operating continuously and
 (2) one 66-megawatt unit operating  continuously (Unit 11).  Table 23 gives the
 indicated annual  pollutant concentrations caused by the  plant under these
 circumstances.

      Table 23.   CALCULATED POLLUTION  CONCENTRATIONS  FROM TORONTO  POWER  PLANT
Receptor
South
New Cumberland
Central
New Cumberland
City Building
Ridge
Distance ,
km
0.5
1.0
1.5
2.0
Annual
All units
Part,
yg/nP
8
75
98
748
S02,
ppm
b
0.16
0.22
1.40
Unit 11
Part. S02,
yg/m3 ppm
a b
a b
10 b
107 0.17
Max. 30-min center! ine
All units
Part.
pg/m3
301
1,629
1,564
10,381
S02,
ppm
0.69
3-39
3.07
22.17
Unit 11
Part,
yg/m3
a
188
266
1,208
S02)
ppm
b
0.24
0.34
1-54
a = <10 yg/m3.
b = <0.02 ppm.

      From Tables 22 and 23,  it is  apparent that,  on an annual  basis,  the contami-
 nation from the plant at the valley receptors  is  not particularly dramatic;
 however, the concentration on the  ridge to the north of New Cumberland is 10  times
 the annual  concentration in  the valley.  When  the plume does impact  on the valley
 floor, pollutant concentrations are high.  The greatest short-term values in  the
 valley occur with slightly unstable conditions, generally during the  day.  The
 greatest short-term concentrations on the ridge occur with neutral and stable
 conditions, generally during the night.
      Two types of weather conditions that do occur, but were not considered in the
 foregoing analysis, are stagnation and high winds.
44

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NOVEMBER - MARCH DAY
      (0700 - 1700)
                                               NOVEMBER - MARCH NIGHT        71
                                                     (1800 - 0600)
13.4
                                                  APRIL - OCTOBER NIGHT
                                                       (1800 - 0600)
APRIL - OCTOBER DAY
     (0700 - 1700)
         9.6
          13.8
                                                                14.7
                                                                              23.7
        Figure  13.   Seasonal wind roses for Steubenville, W. Va., November 1965
                     through October 1966 - percent  occurrence by direction.
                                                                                       45

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     The stagnation condition is typified by an intense inversion and very light
winds.  An approximation of the impact of the plant emissions during atmospheric
stagnation may be made by assuming that all pollutants are confined to the valley
by an intense inversion at ridge level and that a steady up-valley flow persists at
1 meter per second.  The volume of air available to dilute the plant effluents under
these conditions is 240,000 cubic meters per second.  If all units of the plant
were operating, the average particulate concentration would be 2270 micrograms per
cubic meter.  If only unit 11 were operating, the average particulate concentration
would be 520 micrograms per cubic meter.
     A strong wind may cause aerodynamic downwash in the lee of the plant and
force the effluent to ground level close to the plant.
     An approximation of the impact of the plant during high winds on the south
New Cumberland receptor across the river from the plant can be made by assuming
the wind was from the southwest, normal to the longest dimension of the plant.
Because the plume would be quickly swept to the ground, the benefits of an ele-
vated source would be lost.  For the purposes of the calculations, pollutants are
assumed to be emitted at ground level.  Assuming a wind speed of 5 meters per
second and only unit 11 of the plant operating, particulate matter concentrations
exceeding 2000 micrograms per cubic meter may be expected.  The downwash situation
may conservatively be anticipated 3 percent of the time.
     Conservative assumptions were used in making these calculations.  The ash
content of the fuel was assumed to be low for the area where it is mined.  The
efficiency of the collectors was assumed to be 80 percent or better, and particles
greater than 44 microns in diameter were assumed to be removed.  The plume-rise
formula and the diffusion coefficients were selected so as to attribute as little
contamination as reasonably possible to the plant.  The occurrence of fumigations
was not considered because the receptor area is within 2 kilometers of the plant.
The maximum effects of fumigations are usually_more distant; however, it is likely
that the plume from the plant does fumigate the valley and New Cumberland on some
days.
     The annual average contribution to degradation of air quality in New
Cumberland is appreciable.  It is greatest on hills.  The hills to the north of
the New Cumberland Post Office, which are higher than the stacks of the plant,
are estimated to be physically in the plume between 5 and 10 percent of the time.
                                                                                  i
     Short-period pollution concentrations caused by the plant are very high, both
in the valley and on the hills.  The short-period impact is greatest on valley
locations during the daytime.  Because the plume meanders and because the area is
subject to considerable storminess, a particular portion of the city may not be
46

-------
subject to the plume for long periods.   Some  part  of New  Cumberland experiences
pollution from the plant or is under the plume  between  40 and  50  percent of the
time.
     None of these calculations indicate the  impact of  emissions  from  the  plant
during intervals when "soot-blowing" is being performed,  or when  boilers are  being
started up.
                                                                                 47

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           VII. CONTROL  TECHNOLOGY FOR TORONTO POWER PLANT
     Selection of a technique  to  control pollutant emissions depends upon factors
such as the required degree  of control  and the economic, social, and political
ramifications of control.  Techniques  available for control or reduction of
emissions from air pollution sources are:
     1.  Shutting down operations at the source.
     2.  Relocating the source.
     3.  Cleaning the effluent.
     4.  Substituting a cleaner energy source.
     5.  Operating under good  practices.
These control techniques are discussed in depth for the applicable pollutants in
                                                              16
the documents Control Techniques  for Particulate Air Pollutants and Control
Techniques for Sulfur Oxide  Air Pollutants!7
SOURCE SHUTDOWN
     Although source shutdown  is  a drastic control technique, this technique
should not be disregarded as a means to control air pollution from one power
plant in a large power-generation system.  Source shutdown promptly and completely
eliminates emissions from the  offending source; however, shutting down requires
consideration of many factors.
     In view of the age of Toronto Power Plant equipment, high production
expenses because of the age  and type of equipment, and  small plant size and in
view of established power industry policy of phasing out operations at older,
less productive installations, shutdown of some or all  of the boilers at the
Toronto Power Plant should be  weighed  carefully.
GAS CLEANING
     Particulate matter and  sulfur oxides can be removed from the combustion gases
of pulverized-coal-fired boilers.  Mechanical collectors and electrostatic
precipitators are the devices  commonly used  for removal of particulate matter.
Flue gas desulfurization systems  for large power plant  boilers are in the advanced
stages of application, but as  yet have not been proved  effective for control at
commercial installations.
     The design efficiencies of the Toronto  Power Plant flyash collectors are the
maximum that might be expected for mechanical collectors applied to pulverized-
                                        49

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coal-fired boilers.  Although tests might show that collector design efficiencies
are not being achieved at the Toronto Power Plant, efficiency of these collectors
is not important because even the most effective type of mechanical  collector would
be inadequate for Toronto Power Plant control  requirements.
     Devices capable of achieving higher efficiencies than those of the mechanical
collectors are fabric filters, high-efficiency scrubbers, and electrostatic
precipitators.  All are capable of achieving at least 99 percent efficiency on
certain applications; however, only the electrostatic precipitator is commonly
applied to pulverized-coal-fired boilers.  Costs of electrostatic precipitator
systems exclusive of stack costs are given in Table 24.

         Table 2k.  ESTIMATED COSTS FOR CONTROL OF PARTICULATE EMISSIONS,
               TORONTO POWER PLANT   ELECTROSTATIC PRECIPITATORS
Boi ler
number
1
2
3
4
5
7
8
9
10
11
Total
Gas
vo 1 ume , a
acfm
135,000
135,000
135,000
135,000
150,000
150,000
150,000
220,000
282,000
282,000
1,774,000
Installed
equipment costs, >c
1000's of dollars
95
percent
remova 1
125-195
125-195
125-195
125-195
135-210
135-210
135-210
175-285
210-350
210-350
1500-2395
99+
percent
remova 1
195-250
195-250
195-250
195-250
210-275
210-275
210-275
285-360
350-440
350-440
2395-3065
Annual ized
operation costs, b>c
1000's of dollars
95
percent
remova 1
22-30
22-30
22-30
22-30
24-32
24-32
24-32
29-38
33-44
33-44
2555-342
99+
percent
removal
30-40
30-40
30-40
30-40
32-44
32-44
32-44
38-52
44-60
44-60
342-464
       Information from Ohio Edison Company.
       Information from Control Techniques for Particulate Air Pollutants,
      National Air Pollution Control Administration, Washington, D. C.,
      Publication No. AP-51, January 19&9.
      Does not include cost of stacks.

     Selection and application of electrostatic precipitators on pulverized-coal-
fired boilers requires great care if desired efficiencies are to be realized con-
sistently.  As a minimum the design should provide for:
     1.  Adequate transformer and rectifier capacity.
     2.  Sectionalization with a separate automatic power controls to facilitate
50

-------
         optimum collection in the various dust collection zones.
     3.   Sufficient collecting surface area and volume to handle adequately the
         dust and combustion gas load even during soot-blowing operations.
     4.   Provision for uniform flow distribution within the collector.
     5.   Automatic rapping controls, which provide for continuous  or staggered
         rapping.
     6.   Adequately sized and sloped fly-ash hoppers preferably equipped with
         hopper rappers.
     7.   Adequately sized conveyors to handle the flyash in proportion  to
         collection rates in the various precipitator collection zones.
Wherever possible, the original design should provide for future changes in fuels
such as  the use of low-sulfur coal.  With proper design, installation,  operation,
and maintenance practices, 99 percent of the particulate emissions from pulverized-
coal-fired boilers such as those at the Toronto Power Plant can be consistently
recovered.
     Flue gas desulfurization systems are offered commercially for application to
power plant boilers similar to those at the Toronto Power Plant.  These systems
have promise of removing more than 90 percent of the sulfur oxides from the com-
bustion gases.  Applications of a limestone-based injection-type wet process are in
advanced stages on at least three power plant boilers in the 125,000- to 420,000-
kilowatt range.  A sulfite-liquor-type scrubbing system has been applied recently
to a 25,000-kilowatt prototype unit as part of a plan to desulfurize flue gases
from several power plant boilers in the 190,000- to 575,000-kilowatt range.  Con-
struction costs for full-scale application of the sulfide liquor process are
roughly estimated at $12 per kilowatt capacity.  Other processes offered commercial-
ly or near this stage of development are limestone-based injection-type dry pro-
cesses and a catalytic-oxidation-type process.  There is presently insufficient in-
formation available on any flue gas desulfurization process to class it as commercial-
ly applicable.
      In  view of the  uncertainty regarding the effectiveness  and cost of flue  gas
desulfurization,  any plan  for this  type  of control  at the  Toronto  Power Plant
should  include ample time  for trial  of the process  on a  single  boiler before  all
plant boilers  are equipped for this  kind of control.
ENERGY  SUBSTITUTION
      Energy substitution  alternatives  for the Toronto Power  Plant  are use  of  low-
sulfur  fuel,  fuel  oil,  or  natural  gas.
     Use of low-sulfur fuel reduces sulfur oxide emissions in direct proportion to
the reduction in fuel sulfur content.  Coupled with good combustion practice,  the
use of low-sulfur fuel oil at the Toronto Power Plant would most likely reduce
                                                                                 51

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visible emissions from the plant.
     Since technology is not developed for accurately predicting the density of the
visible plume from oil-fired boilers in the size range of the Toronto Power Plant
boilers, an element of risk would be involved if a change to fuel oil were made to
eliminate visible plumes.  Use of fuel oil would reduce particulate emissions at
full plant load from an estimated 2.2 tons per hour to an estimated 280 pounds per
hour.
     Use of natural gas fuel would reduce particulate matter and sulfur oxide
emissions below significant air pollution levels.
     According to 1966 U.S. Department of Interior estimates Uest Virginia coal
reserves include 61.8 billion tons of less than 2 percent sulfur content, 48.5
billion tons of less than 1.5 percent sulfur content, and 26.7 billion tons of
less than 1 percent sulfur content.  There are other less substantial coal
                                                                                18
reserves in Ohio and neighboring states that contain less than 2 percent sulfur.
In view of the magnitude of available reserves, a supply of coal for the Toronto
Power Plant could be found to meet specification limits of 2 percent, 1-1/2 percent,
or 1 percent sulfur content.  Before selection of this alternative, a study would
have to be made of the cost and availability of grades of low-sulfur coal suitable
for use in dry bottom type boilers.
     Any study of fuel substitution should also include the availability and cost
of natural gas and low-sulfur fuel oil on a complete or a partial substitution
basis.
GOOD PRACTICE
     Good practice for combustion processes involves proper selection, application,
installation, operation, and maintenance of combustion equipment and related
auxiliaries.  Since the Ohio Edison Company is well staffed with competent
engineers, supervisors, and operating and maintenance employees, it is assumed
that emissions cannot be reduced appreciably by improvements in plant operation
or maintenance practices related to equipment presently installed.
DISPERSION FROM STACKS
     In general, stacks are used to provide for a reduction of ground level con-
centration by giving natural atmospheric turbulence an opportunity to dilute the
pollutant before it reaches receptors.  Along with control of emissions, it may
be useful to use the natural dilution provided by stacks to obtain desired air
quality.  The approximate cost of tall stacks is shown in Figure 14.
52

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   3,000
2  2,000
   1,000
o
u
<
i-
X
o
a:
o_

     so°
                                                        ^INSIDE DIAMETER AT TOP

                                                         •Includes foundations
     300

       300
                  400
500         600        700


          STACK HEIGHT, feet
                                  800
                                              900
1,000
                  Figure  14.   Approximate installed costs  of stacks.
                                                                                        53

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                                VIII. REFERENCES

 1.   A Meteorological  Survey of the PWR Site at  Shippingport,  Pennsylvania, Special
     Projects Section, Office of Meteorological  Research,  U. S.  Department of Com-
     merce, Weather Bureau, Washington, D,  C., December 1967.

 2.   Consumer Reports, "Pollution in the Air We  Breathe,"  Vol. 25, No. 8, August
     1960, Consumers Union, Mount Vernon, New York.

 3.   Air Quality Criteria for Particulates, National  Air Pollution Control Adminis-
     tration Publication No. AP-49.

 4.   Air Quality Criteria for Sulfur Oxides, National  Air  Pollution Control Admin-
     istration Publication No. AP-50.

 5.   Heggestad, H. E.  and Middleton, J. T., "Ozone in High Concentrations as Cause
     of Tobacco Leaf Injury," Science,  129, 208-210  (1959).

 6.   Menser, H. A., Heggestad, H. E.,  and Street,  0.  E.  "Response of  Plants to Air
     Pollution.  II.  Effects of Ozone Concentrations and  Leaf Maturity on Injury
     to Nicotiana Tabacum," Phytopath., 53:1304-1308 (1963).

 7.   Middleton, J. T., Kendrick, J. G., Jr., and Darley, E.  F.,  "Air  Borne Oxidants
     as Plant-Damaging Agents," National Air Pollution Symposium, Stanford Research
     Institute, 1955.

 8.   Hindawi, I. J., Dunning, J. A., and Brandt, C.  S.,  "Morphological and Micro-
     scopical Changes  in Tobacco, Bean, and Petunia  Leaves Exposed to Irradiated
     Automobile Exhaust," Phytopathology, Volume 55,  No. 1,  27-30, January  1965.

 9.   Haggen-Smith, A.  J., Darley, E. F., Zaitlin,  M., Hull,  H.,  and Nobile, W. H.,
     1952,  Investigation on Injury to Plants from Air Pollution in the Los Angeles
     Area.  Plant Physio!.  27:18-34.

10.   Thomas, M. D., Hendricks, R. H., and Hill,  G. R., "Sulfur Metabolism of Plants."
     Ind. Eng. Chem.,  42:2231-35, November  1950.

11.   Menser, H. A. and Heggestad, H. E., Ozone and Sulfur  Dioxide Synergism:  In-
     jury to Tobacco Plants, Science,  July   1966,  Vol. 153,  No.  3734,  pp. 424-425.

12.   Heck, W. W., "Factors Influencing Expression  of Oxidant Damage to Plants,"
     Annual review of  phytopathology (in press).

13.   Pasquill, F., Atmospheric Diffusion, D. Van Nostrand  Co., Ltd.,  London, 1962.

14.   Gifford, F. A., "Use of Routine Meteorological  Observations for  Estimating At-
     mospheric Dispersion", Nuclear Safety, 2(4) June  1961.

15.   Holland, J. Z., Meteorological Survey  of Oak  Ridge Area,  United  States Atomic
     Energy Commission Report ORO-99,  Weather Bureau, Oak  Ridge, Tenn., 1953.
                                        55

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16.   Control  Techniques for Particulate Air Pollutants.   National  Air Pollution  Con-
     trol Administration Publication No.  AP-51,  Washington,  D.  C., January  1969.

17.   Control  Techniques for Sulfur Oxide Air Pollutants.   National  Air Pollution
     Control  Administration Publication No.  AP-52,  Washington,  D.  C.,  January  1969.

18.   De Carlo, J.  A.,  E. T. Sheridan, and Z.  E.  Murphy, Sulfur  Content of United
     States Coals.  Dept.  of Interior, Bureau of Mines, Washington,  D.  C.,  Infor-
     mation Circular 8312, 1966.
56

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                                IX.  APPENDICES


APPENDIX A.   CORRESPONDENCE AND RESOLUTION

     Letter from Mayor Arthur L.  Watson  to  Secretary Robert Finch, Department of
        Health, Education,  and Welfare
     Resolution of Common Council, City  of  New  Cumberland, West Virginia

APPENDIX B.   DILUTION CLIMATE OF OHIO VALLEY  NEAR NEW CUMBERLAND

     Winds
     Stability
     Stagnations
     Effects of Valley on Plume Behavior

APPENDIX C.   AIR POLLUTION  OPINION SURVEY MADE  BY MAYOR'S COMMITTEE ON AIR
             POLLUTION

     Listing of Survey Questions
     Tabulated Results of Survey
                                        57

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APPENDIX A
                              City of New Cumberland
                        NEW CUMBERLAND, WEST VIRGINIA  26047

                                  March 14, 1969
Honorable Robert Finch
Secretary of Health, Education, and Welfare
Washington, D. C.

Dear Secretary Finch,

          The City of New Cumberland requests the federal  government's inter-
vention for the abatement of interstate air pollution.   We request under
Section 108 of the Air Quality Act of 1967 immediate action for the enforcement of
this Act.

          We know the National Air Pollution Control Administration has collected
information including some unknown amounts of sampling data, and wind sampling
data from our area.  We fully'understand that action is going forward in establish-
ing a region.  Despite that activity, there is an urgent need for interstate
abatement enforcement action against the Ohio Edison power plant located near
Toronto, Ohio, without waiting for regional agency development.

          We are asking high priority to this action because the air pollution is
so flagrant.  The federal government has been aware of this problem so long and
the company has made so many loose promises that the City of New Cumberland, West
Virginia, is seeking your intervention with a goal of complete abatement of
interstate air pollution.  Promises of a brighter future by the management of
Ohio Edison are not enough, for the people of New Cumberland have suffered this
dreaded evil too long.

                                         Sincerely,
                                         Arthur L. Watson
                                         Mayor
ALWrnfs

Enclosures (7)
                                        A-l

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                             RESOLUTION OF THE COUNCIL
                                      OF THE
                        CITY  OF NEW CUMBERLAND, WEST VIRGINIA

           WHEREAS, many residents of the City of New Cumberland, West Virginia,
 are seriously  affected  by  discharges, causing or contributing to air pollution,
 originating  in or near  the City of Toronto, Ohio, and these discharges are caused
 by the  Ohio  Edison Power Plant in or near Toronto, Ohio.
           WHEREAS, these discharges, causing or contributing to air pollution, are
 endangering  the health  or  welfare of many residents of the City of New Cumberland,
 West Virginia, including soiling and interference with visibility.
           WHEREAS, in the  opinion of the Common Council of the City of New
 Cumberland,  it is now necessary to seek further, formalized assistance from the
 federal  air  pollution control agency because previous lesser forms of federal
 assistance have not  been sufficiently effective.
           AND, WHEREAS,  in the best judgment of qualified air pollution control
 specialists, the past actions and the promised corrective measures indicated for
 the future by  the Ohio  Edison Power Company management provide no assurance of
 prompt  or comprehensively  adequate improvement, even though such improvement is
 available and  feasible.
           NOW, THEREFORE,  be it resolved by the Common Council of the City of New
 Cumberland that we formally  request the Secretary of Health, Education, and
 Welfare of the United States to assist the residents of New Cumberland by insti-
 tuting  an interstate abatement action, with full recognition that the full
 procedure, if  eventually required, will take many calendar months from the
 beginning date of the first  step.
           And  be it  further  resolved that we hereby request the Governor of West
 Virginia to  concur with this resolution and submit his concurrence to the
 Secretary of Health, Education, and Welfare of the United States as soon as
 possible, sending a  copy of  his concurrence to the Council of the City of New
 Cumberland.
A-2

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          And be  it further resolved that we hereby request the State of West

 Virginia Air Pollution Control Commission to concur with this resolution and

 submit  their concurrence to the Secretary of Health, Education, and Welfare of

 the United  States as  soon  as  possible, sending a copy of their concurrence to the

 Council of  the City of New Cumberland.

          Adopted by  unanimous vote of the Council, this 3rd day of February, 1969.
                                 signed by:  Arthur L. Watson
                                             Mayor
 Voting Aye:

 Lawrence Andrews
 F. Dean Chamberlain
 Hervey Swearingen
 George Wei gel
 Charles Woofter

 Voting Nay:

 None

 Not Present:

.Robert Mills

 ATTEST:
signed by:  Nedra F. Schlee
            City Clerk
flTTP_T_                          signed by:  Arch A. Moore, Jr.
                                             Governor, State of West Virginia
                                 signed by:  Herbert E. Jones, Jr.
                                             Air Pollution Control Commission,
ATTEST:                                      State of West Virginia
                                                                                A-3

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APPENDIX B - DILUTION CLIMATE OF OHIO VALLEY NEAR NEW CUMBERLAND
     The atmosphere disperses and dilutes pollutants emitted into it.   The rate at
which dispersion and dilution occur is dependent upon the speed of the wind and
atmospheric turbulence.  Meteorological factors that are indicators of the dilution
climate are speed and direction of the wind, atmospheric stability, and the inci-
dence of stagnations.  A long-term assessment of these factors for the New Cumber-
land area is discussed on the following pages.
Winds
     Valleys tend to channel air flow so as to cause wind from certain directions to
occur frequently and steadily (Figure B-l).  Wind speeds in the valley are somewhat
lower than those experienced at ridge level.  Both channeled winds and low wind
speeds adversely affect the rate at which pollution is dispersed and are significant
considerations in assessing the dilution climate of New Cumberland.
           Figure B-l.  Schematic of distortion of wind flow by a  valley.
                        (After:   Meteorology and Atomic Energy - 1968)
                                         B-l

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     A comparison of wind roses (Figure B-2) for Wheeling Airport and for valley
locations at Steubenville, Wheeling, and Moundsville reveals the extent that the
valley channels the wind along the upper Ohio River.  The ridge-level flow, repre-
sented by the Wheeling Airport wind rose, is primarily from the south and southwest.
It is least frequent from the north and east.  The frequency of wind directions at
the valley stations, operated by the National Air Pollution Control Administration
during an air pollution investigation in the upper Ohio River Valley in 1965 and
1966, are markedly skewed.  The most frequent directions are generally parallel to
the orientation of the valley near the location of the wind sensor.
     The wind speeds in the valley are markedly less than at ridge level.  The mean
wind speed at Wheeling Airport for the 12 months from November 1965 through October
1966 was 9.3 miles per hour (mph).  The valley stations were considerably less
windy.  The average wind speed at Steubenville was 5.1 mph; at Wheeling, 6.2 mph;
and at Moundsville, 4.6 mph.  The difference between valley and ridge-level wind
speeds was greatest at night.  During summer nights, average wind speeds in the
valley were only half as strong as those on'the ridge.  In the winter, they
averaged about two-thirds as strong as on the ridge.  In general, wind speeds in the
valley were about 0.6 of the ridge-level speed.
     A speed of 7 mph is considered to be near the minimum wind speed necessary to
provide adequate dispersion in areas where emissions of pollution are not excessive.
During the 1965-1966 period, wind speeds sensed in the valley at Steubenville were
7 mph, or less, 75 percent of the time.  At night, the light winds occurred over 90
percent of the time.  They were particularly frequent during the summer and fall.
     No wind speed data were collected by NAPCA in the valley at New Cumberland,
but it is reasonable to infer from data collected a few miles downstream that:
     1.  Terrain factors significantly influence wind directions in the valley.
         Most frequent wind directions at New Cumberland are undoubtedly generally
         parallel to the orientation of the valley, from the south and southeast
         and from the northwest.
     2.  Wind speeds in the valley average about 60 percent of the speed observed
         at ridge level.  The difference between wind speed in the valley and on
         the ridge is greatest during the night.
Stability
     Atmospheric stability, measured by the rate of change in temperature with
height, provides indications of the rate  that comtaminants are diluted in the
vertical direction.  Lapse stability conditions, a rapid decrease  in temperature
with height, favor rapid dispersion and are most frequent during the day, when the
sun heats the earths surface.  Stable or inversion conditions, an  increase in tem-
perature with height, suppress dispersion.  Stable conditions occur most frequently
B-2

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WHEELING AIRPORT
STEUBENVILLE SOUTHSIDE
      FIRE STATION
                                                           8.3
                  4.0
           4.9
    5.5
12.0
                                                               4.0
                                                                   3.4
                                                                                10.7
WHEELING MUNCIPAL
                MOUNDSVILLE FEDERAL OFFICE
                         BUILDING
                       17.4
      Figure B-2.   Wind  roses for various  locations in upper Ohio  River Valley.
                                                                              B-3

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at night, particularly on clear nights, when radiation from the earth cools its
surface and the air near the surface.  An intermediate stability condition, between
lapse and stable, is referred to as neutral.  Neutral stability is characterized
by no change, or a slight decrease, in temperature with height.  It is associated
with windy and cloudy weather.
     No information on stability is available for New Cumberland itself; however,
the U.S. Weather Bureau gathered stability data near Shippingport, Pennsylvania,
about 20 miles upriver, from 1955 through 1957.  Data were also collected by per-
sonnel associated with the National Air Pollution Control Administration at Steuben-
ville during the spring of 1968 and at wheeling in 1965 and 1966.  Stability data
were also assembled by NAPCA as part of an air pollution investigation of the upper
Ohio River Valley.
     At Shippingport, the temperature difference was measured between temperature
sensors mounted 30 feet above the valley floor and near the crest of the ridge, to
indicate valley stability.1   The ridge-level sensor was 400 feet above the sensor
in the valley.  Data for 2200 LSI (10 p.m.), a typical nighttime hour, showed
inversions occurring 44 percent of the time.  The Pittsburgh upper-air station
indicated inversion within 500 feet above the ridge about 32 percent of the time.
The Shippingport measurements indicated that inversions in the valley persisted for
at least 8 consecutive hours in about 30 percent of the cases, for 12 hours in about
18 percent of the cases, and for 16 hours in about 5 percent of the cases.
     The hourly frequencies of inversions on an annual basis and by seasons are
presented in Figures B-3 through B-7.  The distribution of lapse or slightly
unstable conditions by season and by hour is shown in Figure B-8.  The summarization
of the occurrence of stability categories by season and on an annual basis is shown
in Figure B-9.1  Lapse conditions were more prevalent than neutral or inversion
conditions.  They occurred about half the time during the winter nighttime hours,
and between 80 and 90 percent of the time during mid-afternoon during all seasons.
     Vertical temperature-difference information obtained near Steubenville was
derived from temperature sensors on the valley floor and on a hill 325 feet above
the valley.  In general, the data agreed with data for the spring season at Shipping-
port; however, the frequency of inversion hours was somewhat higher at Steubenville
with 33 percent occurrence compared to 19 percent during the springs of 1956 and
1957 at Shippingport.  Several factors, such as location and observation methods,
may have contributed to the difference in inversion frequency; although it is more
likely that the difference resulted largely from dissimilarities of weather regimes
during the two periods of record.  March 1968, for instance, was notably lacking in
the usual turbulent activity that marks this transitional month.2
B-4

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        50
        40
    2   30
    *St
    tt
    LU
    >
    z
    u.
    o
     u
     ct
20
        10
              24 01 02 03 04 05 06 07  08 09  10 11 12 13 14  15 16 17 18 19 20 21 22 23 24
                                          HOUR

       Figure  B-3.  Annual  hourly  distribution of  inversions  and wind speed at
                   Shippingport,  Pa.,  June  1955 -  May 1957.
     The Wheeling data were obtained from tethered balloon soundings made  periodi-
cally during 1965 and 1966.  The balloon carried a temperature sensor  to about  1000
feet.  The soundings were made from Wheeling  Island, a valley location in  the middle
of the Ohio River at Wheeling, about 30 miles downstream from New Cumberland.
Measurements were made during four different  periods:  (1) November 16-22,  1965;
(2) March 2-7, 1966; (3) July 7-13, 1966; and (4) October 31 - November 6,  1966.
     A total of 89 soundings were analyzed and classified according to four sta-
bility categories.  The frequency of these stabilities is shown  in Table B-l.
Stable conditions were found in 48 percent of the cases.  Inversions were  detected
in 20 percent of the daytime cases and 78 percent of the nighttime cases.
                                                                                 B-5

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         so
         40
     o
     u.
     o
     LJJ
     a.
         30
         20
         10
              24 01 02 03 04  05 06 07 08 09  10 1]  12 13 14  15 16  17 18 19 20 21 22 23 24
                                          HOUR
           Figure B-4.  Hourly  distribution  of  inversions  and  wind  speed  at
                       Shippingport,  Pa., winter  season  1955  -  1957.
     The Wheeling  data  indicate  a  higher  frequency of inversions  than was experienced
at Shippingport  in 1955 -  1957 and at  Steubenville in 1968.   A greater depth of the
atmosphere was sampled  at  Wheeling;  therefore,  inversions  above the ridge level
were sensed.   In addition,  the sounding system  used at Wheeling could not be
operated during  periods when  precipitation  was  occurring or  when  the wind speed
exceeded 15 mph.   These two conditions  biased  the  results  toward  stable conditions.
The data did  reveal  that inversions  aloft,  which may more  affectively confine plumes
from elevated  sources than  ground-based inversions, occurred 8 percent of the time.
Though  the sample  was small,  inversions aloft  occurred as  frequently during the day
as at night.
B-6

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        50
        40
     2  30
        20
         10
               24 01 02 03 04 05 06 07 08 09  10 11  12 13 14 15 16  17 18 19 20 21  22 23 24
                                           HOUR

     Figure B-5.  Seasonal hourly distribution of inversions and wind speed at
                  Shippingport, Pa., spring season 1956 - 1957.
      In summary, the stability information shows that the upper Ohio River Valley
experienced conditions that markedly suppress vertical dispersion about 20 percent
of the time on an annual basis.  Lapse conditions occur about 50 percent of the
time.  Inversions occur least frequently during the winter; however, during night-
time hours of the summer and fall, stable or inversion conditions pre/ail more than
one-third of the time.
Stagnations
      Stagnations are prolonged periods of poor dispersion.  They are caused by
large-scale weather processes in which an area of weak winds develops and moves
slowly or becomes stationary over an area.  Skies are usually clear and winds very
light.  The air in the stagnating cells generally subsides, warming as it descends.
                                                                                 B-7

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        60
         50
         40
     o
     o:

     -   30
     1L
     O
     UJ
     u
     ct
         20
         10
               24 01 02 03 04 05 06 07 08 09 10 11  12 13 14 15 16 17 18  19 20  21 22 23 24
                                           HOUR

       Figure  B-6.   Seasonal  hourly distribution of inversions at Shippingport,
                    Pa.,  summer season 1955 - 1956.

This produces an inversion aloft which,  in  contrast  to the more  common  surface-
based inversion, may  not  entirely  dissipate during the daylight  hours.   The inver-
sion aloft may persist for several days.   During  such  periods, pollutants may
collect beneath the  "lid," and very high  levels of contamination  develop.  Korshover
found that stagnations lasting 4 days  or  more occur  over  the upper Ohio River area
about twice a year.   Those lasting 7  days  or more occur about once in  5 years.
Effects of Valley on  Plume Behavior
      The meteorological  factors that relate to the  general  dilution climate can be
B-8

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         50
         40
     r
     2   30
     V)
     a:
     Ul
     u
     QL
     LU
     Q.
20
         10
                                            vXoi'-MvVi,
               24 01 02 03 04 OS 06 07 08 09 10 11  12 13  14 15  16 17 18  19 20  21 22 23 24
                                            HOUR

      Figure B-7.   Seasonal hourly distribution  of  inversions  at  Shippingport,
                    Pa., fall season 1955 -  1956.
applied to most pollution problems.   Special considerations  are  appropriate,  however,
when one source is the matter of concern.   In  the  New  Cumberland case,  the major
concern is a plant located  in a narrow  valley.   It emits  contaminants  from stacks
that are below the height of the surrounding ridges.   Particular,  though by no means
uncommon, problems develop  when the wind  is essentially perpendicular  to the  valley.
      When the general wind direction is  perpendicular to the  valley,  one of  two
patterns of valley flow is  likely  (Figure  B-10):   (1)  The pattern  characterized by
lee separation of the flow  at about ridge  level  is more likely to  occur when  the
atmosphere is either unstable or when a pronounced inversion is  located at about
ridge level (Figure B-lOa).  A complex  eddy may  form in the  valley.  Wind directions
are not closely related to  the wind above  the  ridge.   Wind speeds  in the valley are
likely to be significantly  lighter.   (2)  The pattern characterized by  flow that
                                                                                  B-9

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   u
   cc
      90
      80
      70
      60
      50
      40
      30
      20
      10
      90
      80
      70
      60
      50
      40
      30
       20
       10
- WINTER
- SPRING
         - SUMMER
               U
                I i
                       Tl
                             i
                                     - FALL
            1  3  5  7  9 11  13  15 17 19  21 23       1  3  5  7  9 11  13  15 17 19 21 23


                                           HOUR




      B-8.  Hourly  distribution of lapse.   Lapse conditions were considered to

            exist when  the  temperature at 400 feet minus the temperature at 30

            feet was  52.1°  F at  Shippingport, Pa., June 1955 - May  1957.
B-10

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               70
               60
               50
               40
               30
              20
              10
                               LAPSE
                              ±-2.1 F
 NEUTRAL
-2.0 TO 0.0  F
INVERSION
  •0.1 F
                                                    LJlf
                                                       w
                       WSSF   A    WSSF   A   WSSF   A
                                  PERCENT OF SEASONAL HOURS

    Figure B-9.  Annual and seasonal  percent occurrences of lapse-rate categories
                 at Shippingport, Pa., June 1955 - May 1957.
follows the configuration of the valley is more likely to occur under neutral or
slightly stable conditions  (Figure B-lOb).  The wind speed in the valley is  less
than above the ridge, but the wind direction is generally similar to that of the
ridge-level wind.
      The pattern the flow  takes is dependent on several factors.  The slope of the
valley sides, the wind speed and the atmospheric stability are among them.  According
to Slade, the pattern showing lee separation (Figure B-lOa) is more likely to occur
when the lower atmosphere is unstable.  "The resulting state is determined by a

                                                                                B-ll

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             Table  B-1.   SUMMARY  OF  VERTICAL  TEMPERATURE  SOUNDINGS AT
                 WHEELING,  WEST  VIRGINIA,  BY STABILITY CLASSES
Cases
All (89)
%
Daya (49)
%
Nightb (40)
9-
•b
G round-based
i nvers ion (S)
36
40
8
16
28
70
Cond i t i ona 1 ,
i nvers ion
aloft (C)
7
8
4
8
3
8
Neutral (N)
39
44
30
61
9
22
Unstable (U)
7
8
7
14
0
0
      Day  -  sunrise  to  sunset.
      Night  -  sunset  to sunrise.

 balance  between  topographical  and  meteorological  conditions.  Moreover,  if  these
 conditions  are not  strongly  defined,  it  may  be  possible  for  the  pattern  to  change
 back  and  forth,  as  first  one,  then another,  balance  is struck among  the  acting
 forces.""  Figure B-ll  represents  typical  plume configurations under these  two
 common  types  of  cross-valley flow.
       If  a  plant is  located  on the windward  side of  the  valley and its stack  does
 not extend  above ridge level,  its  plume  often will be brought to the surface  much
 closer  to the plant  than  if  it were located  on  level ground  (Figure  B-12).
      The cross-valley flow  situation is particularly pertinent  to the Toronto  Power
 Plant because its stacks  are short in relation  to the height of  the  plant and the
 plant is  located at  the mouth  of Croxton Run.   This  location is  somewhat more
                 (a)
(b)
     Figure  B-10.   Flow  pattern  with  general wind  flow  perpendicular  to  valley.
                   Stability:   (a)  generally unstable (b)  generally neutral  to
                   slightly  stable.
B-12

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                   (a)
                (b)
  Figure B-ll.   Schematic of plume from a short stack  located  in  a  valley with
                 general  flow perpendicular to the valley  (a) unstable atmosphere,
                 (b)  neutral  or stable atmosphere.
             'ifinTmnnniiiiiiiniiiiiiii,
                        (a)
iiiiiiiiiiiiiiiiiiiiiiniiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
                 (b)
   Figure B-12.   Schematics of plume from plant location  on  lee  of hill  (a)
                  and  on  level  terrain (b).  Wind speeds assumed  to be average;
                  stability near neutral.
exposed to  strong  winds from the southwest than many other  portions  of the valley.
If winds are  sufficiently strong, aerodynamic downwash  occurs  in  the lee of the
plant.  This  situation is shown schematically in Figure B-13.
      The distribution of contaminants emitted from a source that may produce a
downwash situation is  a function of a great variety of  factors.   Some of them are
the geometric characteristics of the building and the terrain,  the orientation of
the building  to  the wind, the mean wind speed, the variability  of the wind direction,
atmospheric stability, the difference in temperature between the  effluent and the
air, and the  velocity  of the effluent from the stack.   When downwash occurs, the
maximum ground-level concentrations occur much closer to the source  than normal.
                                                                                 B-13

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                             DISPLACEMENT FLOW
                             •BUILDING  '-CAVITY
     Figure B-13.   Schematic of flow about a cubical  building (After Halitsky).


 The  benefits  of emitting  the effluent  from  elevated  stacks are essentially lost.
       Without very detailed  information concerning the meteorology  near the plant
 and  concerning the plant-operating  patterns,  it  is hazardous  to estimate the fre-
 quency that downwash may  occur or the  pollution  concentrations that may be experi-
 enced.  A  reasonable meteorological  judgment  would be that strong southwest winds
                                               •
 would  occur at the plant  about the  same frequency that they  occur on the ridge.
 Wheeling Airport experiences southwest winds  in  excess of 5  meters  per second about
 3  percent  of  the time.  It  is reasonable  to expect that the  southern portion of New
 Cumberland, which is immediately downwind of  the plant, when  the wind is from the
 southwest, may suffer  the effects of aerodynamic downwash at  least  this often.
       If the  wind is essentially parallel to  the axis of the  valley and the effluent
 is emitted below the level  of the ridge,  the  valley  walls will inhibit the usual
 horizontal spread and  dispersion of the plume.   When the atmosphere in the valley
 is stable, or when an  inversion prevails  above the stack, the horizontal dispersion
 is particularly inhibited.   Under such circumstances, the plume and contaminants
 may  be confined to the  valley for an extended period of time  (Figure B-14).
B-14

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   Figure B-14.  Schematic of valley confining a plume.  Stable conditions and
                 flow along  valley axis.  (After:  ASME Recommended Guide for
                 the Prediction of the Dispersion of Airborne Effluents.)
Appendix B References

1.  A Meteorological Survey of the PWR Site at Shippingport,  Pennsylvania,  Special
    Projects Section, Office of Meteorological Research, U.  S.  Department of Com-
    merce, Weather Bureau, Washington, D. C. ,  December 1967.

2.  Local Climatological Data, Annual Summary  with Comparative  Data,  1965,  1966,
    1968.  Greater Pittsburgh Airport, Pennsylvania, U.  S.  Department of Conmerce
    Environmental Science Services Administration.  Environmental  Data Service.

3.  Korshover, J., Climatology of Stagnating Anticyclones East  of  the Rocky Moun-
    tains, 1936-1965.  Public Health Service Publication No.  999-AP-34.   1967.

4.  Slade, David H., ed., Meteorology and Atomic Energy.  Atomic Energy  Commission
    (Tid-24190) Oak Ridge, Tenn., 1968.
                                                                               B-15

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APPENDIX C                      AIR POLLUTION SURVEY

 1.  Name	
 2.  Age
 3.  Address
 4.   Length of Residence
 5.   Home Owner or Rent.

 6.   Married or Single  	
 7.  Children	How Many

 8.  Type of fuel burned?	
 9.  Do you think an air pollution problem exists?.
10.  Does it affect your health or the health of your family?
11.  If so,  how does it affect you or members of your family?

12.  Remarks of family physician: 	
13.  Do you experience physical discomfort,  such as buring of eyes,
     choking sensation, foul odors, ect. ?	
14.  If so,  explain this discomfort.	

15.  Is your property affected by air pollution?.
16.  If so,  explain how your property is affected.
     a.  Paint damage
     b.  Gutter and downspout
     c.  Roof	
     d. Interior of house and furnishings .
     e. Plant life	
     f. Other	
17.  Does the air pollution prevent you from enjoying outdoor activities ?.
                                    I

18.  If so,  explain. _	
19.  Are you ashamed to have out of town guests visit you?

20.  Have you thought of moving because of air pollution?	
21.  Does the air pollution prevent your children from playing out and
     enjoying the outdoors ?	
22.  If so,  explain.
23. What do you believe to be the chief cause of air pollution?.
                                      C-l

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                              AIR POLLUTION SURVEY

  1.   Total  interviews
        a. Families  - 391
        b. Individuals  - 1302
  2.   Date of  Interviews
        July 24-30

  3.   Home owner  - 2?4
      Rent - 115

  If.   Length of residence
        a. 0 - 1  Year - 25
        b. 2 - 5  Years  - 68
        c. 6 - 10 Years - 34
        d. 11  Years  and up -  250        -  No Comment  - 14

  5.   Type of  fuel burned
        a. Gas -  339
        b. Coal - 42
        c. Other  - 10

  6.   Do you think an air pollution  problem exists in N6w Cumberland?
        a. Yes -  390
        b. No  - 0             No  Comment  - 1

  7.   Does air pollution affect your health or  the health of your family?
        a. Yes -  339                      d. Allergies - 40
        b. No  - 16                         e. Emphysemia - 6
                                          f. Headaches - 7
        a. Burning of eyes -  49            g. Mental  - 10
        b. Choking - 96                   h. High  blood pressure - 2
        c. Sinus  - Respiritory -  215

  8.   Is your  property  affected by air  pollution?
        a. Yes -  369                 c. Roof -  255
        b. No  - 5                    d. Interior-furnishings - 274
                                     e. Plant life - 389
        a. Paint  damage - 311        f. Other - 200
        b. Gutter-downspout - 219

  9.   Does the air pollution  prevent you  from enjoying outdoor activities?
        a. Yes -  334
        b. No  - 24              No Comment - 33

 10.   Are you  ashamed to have out of town guests visit you?
        a. Yes 293
        b. No  - 35             No Comment - 63

 11.   Have.you thought  of moving  because  of air pollution?
        a. Yes -  256
        b. No  - 76             No Comment - 59

 12.   What do  you believe to  be the  chief cause of air pollution?
        a. Ohio Edison  Power  Plant - 370
        b. Stratton  - 35
        c. Factories -  10
        d. Roads  - 5
        e. Coal Burning - 1
                                             * U. S. GOVERNMENT PRINTING OFFICE : 1969—S'ly-'tl 0/16
C-2

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