\l'
United States
Environmental Protection
Agency
Atmospheric Sciences
Research Laboratory
Research Triangle Park, NC 27711
Research and Development
EPA/600/S3-88/010 May 1988
Project Summary
National Ambient Volatile
Organic Compounds (VOCs)
Data Base Update
Jitendra J. Shah and Emily K. Heyerdahl
The National Ambient Volatile
Organic Compounds (VOCs) Data
Base update is the result of an
ongoing effort to gather, evaluate.and
compile the measured con-
centrations of a large number of
VOCs. Data on the observed
concentrations of three hundred
twenty (320) volatile organic
compounds (VOCs) were compiled,
critically evaluated, and assembled
Into a relational data base. Ambient
(outdoor) measurements, indoor
data, and data collected with
personal monitors are included. The
data are primarily from the period
1970-1987 and for locations within
the United States. In order to
compare data from many different
sources, each concentration record
in the data base represents the daily
average for a single chemical,
wherever feasible. The total data
base contains more than 175,000
concentration records.
Summaries of the data
distributions are tabulated in the
report. The average, median and
quartile values are given for each
chemical measured in both the
ambient and indoor site categories.
Median values are also listed for
each chemical for the eight specific
site types included in the data report.
The ambient site types are: remote,
rural, suburban, urban, and source
dominated. The indoor category of
site types include residential indoor,
workplace (non-industrial), and
personal monitors.
The data have been assembled
into a relational data base using
dBASE III Plus, a commercially
available data base management
program. The data base is available
on IBM PC-compatible diskettes.
The report contains a complete
description of the data base files and
a guide describing the use of a
prepared program for searching and
maintaining the data base.
This Project Summary was
developed by EPA's Atmospheric
Sciences Research Laboratory,
Research Triangle Park, NC, to
announce key findings of the research
project that is fully documented in a
separate report of the same title (see
Project Report ordering information at
back).
Introduction
Over the last decade, concerns about
exposure to potentially toxic chemicals in
the atmosphere have contributed to a
growing body of literature on
concentrations of Volatile Organic
Compounds (VOCs) in the environment.
Knowledge of the ambient concentrations
of VOCs is very useful to the
Environmental Protection Agency (EPA),
and, therefore, the first national ambient
VOC data base was prepared for EPA
and published in 1983.1 That original
data base critically evaluated and
consolidated published data on ambient
(i.e., outdoor) concentrations of 151
VOCs measured in the United States
during the years 1970 to 1980.
The concerns about air toxics have
persisted, and, as a result, the knowledge
about environmental concentrations of
VOCs has increased considerably in the
intervening years. Much more information
-------
is now available on VOCs in the
environment. The 1983 national data
base on VOCs has been updated to
include both ambient and indoor VOC
data for the years 1980 to 1987. The
updated data base includes information
on 320 VOCs. The chemicals included
in the data base are listed in Table 1.
The data were evaluated for quality by a
rating and ranking scheme. The updated
data base is available on IBM PC-
compatible diskettes for use with dBASE
III Plus, a commercially-available
relational data base management
system.
The objectives of the task to update
the data base were:
1. Review EPA's existing VOC data
base and correct any discrepancies
found;
2. Identify newly-published and
unpublished VOC data, critically
evaluate the data, combine them
with the previous data, analyze the
resulting data base; and,
3. Provide the resulting VOC data base
in a dBASE III Plus format(s)
designed to facilitate searching,
sorting, editing, analysis and other
manipulations.
Procedures
Each of the major tasks involved in
updating the data base are discussed
briefly below. The principal elements are:
• Perform quality assurance (QA)
checks of the original data set and
convert it to a relational data base
format;
• Conduct a literature search to obtain
new data, including contacting
individuals and organizations
measuring VOCs to request
additional or unpublished data;
• Develop criteria for critically
evaluating (ranking and rating) the
data base;
• Review reports, extract and critically
evaluate data;
• Select an appropriate relational data
base format and enter all the data;
• Assure the quality of the data base
entries;
• Statistically analyze the data base.
Original Data Base: QA and
Conversion
The original 1983 VOC data base
contained comprehensive information on
ambient levels of VOCs in the U.S. from
1970 to 1980. This data base was
checked for erroneous entries, and
converted to dBASE III Plus format to be
included in the updated data base.
Literature Search/Obtain Data
A major on-line literature search
was performed using the Chemical
Abstracts data base of the DIALOG on-
line system. The data base was searched
for each of the 151 chemicals in the
original data base by Chemical Abstract
Service registry number combined with
key words to limit retrievals to the
ambient and indoor atmospheres in the
U.S. during the years of interest (1980 to
present).
The search yielded a list of 2769
references of which 600 were reviewed
for useful data.
In addition, unpublished or additional
data which may have been too extensive
for a journal article were sought from the
scientific community. A survey form was
developed and an Office of Management
and Budget clearance obtained. The
survey form was distributed to
researchers who might have additional
data. Data gathered through EPA
sponsored programs were also obtained.
A telephone follow-up of researchers
was necessary to obtain adequate
response.
Develop Data Assessment
Criteria
To facilitate data evaluation, the data
quality was judged and reported in the
form of ranking and rating. Ranking, a
multi-digit number gives a numerical
value to each of three factors affecting
data quality: (1) the appropriateness of
the methodology, (2) the probable
accuracy of the quantification, and (3) the
available documentation. Ranking would
be most useful for data evaluation by
researchers familiar with VOC
measurements. Rating, a single letter
code, on the other hand,.is an overall
measure of data quality. Rating is
determined from the three ranking
factors and their relative importance.
Extract and Critically Evaluate
Data
All reports and papers received from
researchers or obtained from the
literature search were reviewed and
evaluated for measurements of
environmental concentrations of VOCs.
The information was extracted from the
useful reports and coded for data entry.
Much of the information from EPA
projects was already available on
diskettes, which helped minimize data
entry errors. Information relevant to the
ranking and rating process was noted,
and the critical evaluation of the data was
accomplished with input from an advisof
panel of experts. ™
Create Relational Data Base
and Enter Values
A relational data base format was
established, as shown in Table 2. The
coded data from reports and EP^
diskettes were entered into dBASE II
Plus files. dBASE III Plus permits the
specification of ranges of acceptable
input values, which allows for immediate
error checking and correction. The
original data base containec
approximately 18,000 concentratior
records. The updated data base include;
more than 175,000.
Assure Quality of Data Base
Entries
To assure the quality of the dat<
entries, the following procedures were
employed.
• Only experienced data entn
personnel were used.
• Many of the data were obtained 01
diskettes and transferred directly inti
dBASE III Plus format.
• Simple error-checking technique;
available in dBASE III+ were use<
as appropriate.
• All software was user-friendly aft
tested thoroughly before use. "
• Scatterplots and other techniques fc
identifying "outliers" as potential!
erroneous data were performed.
• More than 10% of the reports wen
independently reviewed by tw
analysts.
• The data were thoroughly reviewe
by a panel of prominent researcher
in this field.
Statistically Analyze the Data
Base
The authors performed summar
statistics on the master data file. Th
results are tabulated in the full proje<
report.
Summary
Data on the measurement of thre
hundred twenty volatile organic chemic
air pollutants has been assemble*
critically evaluated, and organized into
versatile, relational data base. The projei
report and the data base are available f<
public distribution. The complete da
base contains information on bol
outdoor and indoor measurements, bi
for convenience in manipulating the dat
the indoor and ambient data have be«
separated into two concentration file
The concentration file of ambie
-------
leasurements contains more than
.22,000 records on the listed chemicals.
The indoor concentration file contains
more than 52,000 records involving
seventy-one chemicals.
The original VOC data base was
widely used, and the new data base is
expected to have even wider
applications. Potential applications of the
data base include screening level
exposure assessments, pattern or trend
analysis, input values for modeling
studies, determination of available
analysis methods, etc.
References
1. Brodzinsky, R. and H.B. Singh
"Volatile Organic Chemicals in the
Atmosphere: An Assessment of
Available Data," (1988) En-
vironmental Sciences Research
Laboratory, U.S. EPA, Research
Triangle Park, NC, EPA-600/3-
83-O27(A) (1983).
-------
Table 1
Data
Base
Chem-
ical
A/o.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
. Chemicals Included in the Data Base A
Chemical
Abstracts
System
Number Chemical Name
??
??
??
??
50-00-0
55-18-5
56-23-5
59-89-2
62-53-3
62-75-9
64-18-6
64-67-5
67-64-1
67-66-3
67-72-1
71-43-2
71-55-6
74-82-8
74-83-9
74-84-0
74-85-1
74-86-2
74-87-3
74-88-4
74-95-3
74-97-5
74-98-6
74-99-7
75-00-3
75-01-4
75-05-8
75-07-0
75-09-2
75-15-0
75-18-3
75-21-8
75-25-2
75-27-4
75-28-5
75-34-3
75-35-4
75-44-5
75-45-6
75-56-9
75-69-4
7-METHYL-3-METHYLENE- 1 , 6-OCTADIENE
OIPHENYL ETHER
CUMENE
8UTYNE
FORMALDEHYDE
N-ETHYL-N-NITROSOETHANAMINE
CARBON TETRACHLORIDE
4-NITROSOMORPHOLINE
ANIUNE
01 METHYL NITROSAMINE
FORMIC ACID
DIETHYL ESTER SULFURIC ACID
ACETONE
CHLOROFORM
HEXACHLOROETHANE
BENZENE
1, 1, 1-TRICHLOROETHANE
METHANE
BROMOMETHANE
ETHANE
ETHENE
ACETYLENE
CHLOROMETHANE ,
IODOMETHANE
DIBROMOMETHANE
BROMOCHLOROMETHANE
PROPANE
1-PROPYNE
CHLOROETHANE
VINYL CHLORIDE
ACETONITRILE
ACETALDEHYDE
METHYLENE CHLORIDE
CARBON DISULFIDE
THIOBISMETHANE
ETHYLENE OXIDE
TRIBROMOMETHANE
BROMODICHLOROMETHANE
2-METHYLPROPANE
1,1-DICHLOROETHANE
1,1-DICHLOROETHENE
PHOSGENE
CHLORODIFLUOROMETHANE
PROPYLENE OXIDE
TRICHLOROFLUOROMETHANE
(continued)
-------
Table 1. (Continued)
Data
Base Chemical
Chem- Abstracts
ical System
No. Number
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
6T
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
75-71-8
75-73-0
75-74-1
75-83-2
75-93-4
75-97-8
76-01-7
76-13-1
76-14-2
77-47-4
77-78-1
78-00-2
78-75-1
78-78-4
78-79-5
78-87-5
78-93-3
79-00-5
79-01-6
79-29-8
79-34-5
79-46-9
79-92-5
80-56-8
87-61-6
87-68-3
90-12-0
91-20-3
91-22-5
91-57-6
93-55-0
95-47-6
95-48-7
95-49-8
95-50-1
95-63-6
95-93-2
96-12-8
96-14-0
96-22-0
96-37-7
98-82-8
98-83-9
98-86-2
98-95-3
Chemical Name
DICHLORODIFLUOROMETHANE
TETRAFLUOROMETHANE
TETRAMETHYLPLUMBANE
2,2-DIMETHYLBUTANE
MONOMETHYLESTER SULFURIC ACID
3,3-DIMETHYL-2-8UTANONE
PENTACHLOROETHANE
1,1,2-TRICHLORO-1,2,2,-TRIFLUOROETHANE
1,2-DICHLORO-1,1,2,2-TETRAFLUOROETHANE
1,2,3,4,5,5-HEXACHLOROCYCLOPENTADIENE
DIMETHYL SULFATE
TETRAETHYLPLUMBANE
1 ,2-DIBROMOPROPANE
2-METHYLBUTANE
2-METHYL-1 ,3-BUTADIENE
1,2-DICHLOROPROPANE
2-BUTANONE
T , 1 ,2-TRICHLOROETHANE
TRICHLOROETHENE
2, 3-DIMETHYL8UTANE
1,1,2,2-TETRACHLOROETHANE
2-NITROPROPANE
2,2-DIMETHYL-3-METHYLENE-BICYCLOf2.2.1l-HEPTANE
2,6,6-TRIMETHYL-BICYCLO{3. 1. 1 ]-HEPT-2-ENE
1,2,3-TRICHLOROBENZENE
1,1,2,3,4,4-HEXACHLORO-1,3-BUTADIENE
1 -METHYLNAPHTHALENE
NAPHTHALENE
QUINOLINE
2-METHYLNAPHTHALENE
1 -PHENYL- 1 -PROPANONE
1 ,2-DIMETHYLBENZENE
2-METHYL PHENOL
1 -CHLORO-2-METHYLBENZENE
1,2-DICHLOROBENZENE
1,2,4-TRIMETHYLBENZENE
1,2,4,5-TETRAMETHYLBENZENE
1,2-DIBRQMO-3-CHLORQPROPANE
3-METHYLPENTANE
3-PENTANONE
METHYLCYCLOPENTANE
(1 -METHYLETHYL)-BENZENE
1 -(METHYLETHENYL)-BENZENE
1 -PHENYLETHANONE
NITROBENZENE
(continued)
-------
Table 1.
Data
Base
Chem-
ical
No.
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
(Continued)
Chemical
Abstracts
System
Number
99-87-6
100-41-4
100-42-5
100-44-7
100-47-0
100-52-7
103-65-1
104-51-8
105-05-5
105-67-9
106-42-3
106-43-4
106-44-5
106-46-7
106-89-8
106-93-4
106-95-6
106-97-8
106-98-9
106-99-0
107-02-8
107-04-0
107-05-1
107-06-2
107-10-1
107-12-0
107-13-1
107-50-6
107-83-5
107-87-9
108-08-7
108-31-6
108-38-3
108-39-4
108-47-4
108-48-5
108-67-8
108-68-9
108-70-3
108-75-8
108-86-1
108-87-2
108-88-3
108-89-4
108-90-7
(
Chemical Name
1 -METHYL-4-(1 -METHYLETHYLhBENZENE
ETHYLBENZENE
ETHENYLBENZENE
(CHLOROMETHYD-BENZENE
BENZONITRILE
BENZALDEHYDE
PROPYLBENZENE
BUTYLBENZENE
1, 4-DIETHYLBENZENE
2. 4-DIMETHYLPHENOL
1.4-DIMETHYLBENZENE
1 -CHLORO-4-METHYLBENZENE
4-METHYLPHENOL
1,4-DICHLOROBENZENE
(CHLOROMETHYL)OXIRANE
1,2-DIBROMOETHANE
3-BROMO- 1 -PROPENE
BUTANE
1-8UTENE
1,3-BUTADIENE
2-PROPENAL
1 -BROMO-2-CHLOROETHANE
3-CHLORQ-1 -PROPENE
1,2-DICHLOROETHANE
4-METHYL-2-PENTANONE
PROPANENITRILE
2-PROPENENITRILE
TETRADECAMETHYLCYCLOHEPTASILOXANE
2-METHYLPENTANE
2-PENTANONE
2,4-DIMETHYLPENTANE
2,5-FURANDIONE
1,3-DIMETHYLBENZENE
3-METHYLPHENOL
2,4-DIMETHYLPYRlDINE
2, 6-DIMETHYLPYRIDINE
1,3,5-TRIMETHYLBENZENE
3,5-DIMETHYLPHENOL
1,3,5-TRlCHLOROBENZENE
2,4,6-TRIMETHYLPYRIDINE
BROMOBENZENE
METHYLCYCLOHEXANE
TOLUENE
4-METHYLPYRIDINE
CHLOROBENZENE
continued)
-------
Table 1. (Continued)
Data
Base
Chem-
ical
No.
136
137
138
739
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
Chemical
Abstracts
System
Number
108-94-1
108-95-2
108-99-6
109-06-8
109-66-0
109-67-1
109-70-6
109-97-7
109-99-9
110-02-1
110-54-3
110-56-5
110-82-7
110-83-8
110-86-1
111-44-4
111-65-9
111-66-0
111-76-2
111-84-2
1 12-40-3
115-07-1
115-11-7
115-11-7
119-61-9
119-65-3
120-82-1
123-01-3
123-38-6
123-72-8
123-86-4
123-91-1
124-11-8
124-13-0
124-18-5
124-48-1
126-99-8
127-18-4
127-91-3
135-01-3
135-98-8
141-78-6
141-93-5
142-29-0
142-82-5
Chemical Name
CYCLOHEXANONE
PHENOL
3-METHYLPYRIDINE
2-METHYLPYRIDINE
PENTANE
1-PENTENE
1 -BROMO-3-CHLOROPROPANE
lH-PYRROLEt
TETRAHYDRO'pURAN
THIOPHENE
HEXANE
1,4-DICHLOROBUTANE
CYCLOHEXANE
CYLCOHEXENE
PYRIDINE
1, 1 '-OXYBIS(2-CHLOROETHANE)
OCTANE
1-OCTENE
2-BUTOXYETHANOL
NONANE
DODECANE
PROPENE
2-METHYL-1-PENTENE
2-METHYL-1 -PROPENE
DIPHENYLMETHANONE
ISOQUINOLINE
1,2,4-TRICHLOROBENZENE
DODECYLBENZENE
PROPANAL
BUTANAL
BUTYL ACETATE
1,4-(DIOXANE)
1-NONENE
OCTANAL
DECANE
DIBROMOCHLOROMETHANE
2-CHLORO-1.3-BUTADIENE
TETRACHLOROETHENE
6,6-DIMETHYL-2-METHYLENE-BICYCLOl3. 1. 1J-HEPTANE
1,2-DIETHYLBENZENE
(1 -METHYLPROPYQ-BENZENE
ACETIC ACID ETHYL ESTER
1,3-DIETHYLBENZENE
CYCLOPENTENE
HEPTANE
(continued)
-------
Table 1.
Data
Base
Chem-
ical
No.
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
19?
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
(Continued)
Chemical
Abstracts
System
Number
144-19-4
156-59-2
156-60-5
287-92-3
291-64-5
463-49-0
463-58-1
464-06-2
488-23-3
496-78-6
513-35-9
527-53-7
527-60-6
538-68-1
540-84-1
540-97-6
541-02-6
541-05-9
541-73-1
544-76-3
554-14-3
556-67-2
556-68-3
562-49-2
563-45-1
563-46-2
564-02-3
565-59-3
565-75-3
576-26-1
576-73-8
583-61-9
584-94-1
587-04-2
589-34-4
589-43-5
589-81-1
590-18-1
591-76-4
592-13-2
592-27-8
592-41-6
593-45-3
594-18-3
608-93-5
<
Chemical Name
2,2,4-TRIMETHYL-1,3-PENTANEDIOL
(Z)-1,2-DICHLOROETHENE
(E)-1.2-DICHLOROETHENE
CYCLOPENTANE
CYCLOHEPTANE
1,2-PROPADIENE
CARBON OXIDE SULFIDE
2,2.3-TRIMETHYLBUTANE
1,2,3,4-TETRAMETHYLBENZENE
2,4,5-TRIMETHYLPHENOL
2-METHYL-2-BUTENE
1,2,3,5-TETRAMETHYLBENZENE
2,4,6-TRIMETHYLPHENOL
PENTYLBENZENE
2,2,4-TRIMETHYLPENTANE
DODECAMETHYLCYCLOHEXASILOXANE
DECAMETHYLCYCLOPENTASILOXANE
HEXAMETHYLCYCLOTRISILOXANE
1,3-DICHLOROBENZENE
HEXADECANE
2-METHYLTHIOPHENE
OCTAMETHYLCYCLOTETRASILOXANE
HEXADECAMETHYLCYCLOOCTASILOXANE
3,3-DIMETHYLPENTANE
3-METHYL-1-BUTENE
2-METHYL-1 -BUTENE
2,2,3-TRIMETHYLPENTANE
2,3-DIMETHYLPENTANE
2,3,4-TRIMETHYLPENTANE
2, 6-DIMETHYLPHENOL
1,2,3-TRIMETHYLBENZENE
2,3-DIMETHYLPYRIDINE
2,3-DIMETHYLHEXANE
3-CHLOROBENZALDEHYDE
3-METHYLHEXANE
2,4-DIMETHYLHEXANE
3-METHYLHEPTANE
(Z)-2-BUTENE
2-METHYLHEXANE
2,5-DIMETHYLHEXANE
2-METHYLHEPTANE
1-HEXENE
OCTADECANE
DIBROMODICHLOROMETHANE
PENTACHLOROBENZENE
(continued)
-------
Table 1.
Data
Base
Chem-
ical
No.
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
(Continued)
Chemical
Abstracts
System
Number
611-14-3
616-12-6
616-43-3
616-44-4
619-99-8
620-14-4
622-96-8
624-64-6
624-92-0
625-27-4
627-20-3
627-42-9
629-50-5
629-59-4
629-62-9
629-78-7
630-20-6
636-41-9
646-04-8
674-76-0
691-38-3
693-89-0
763-29-1
871-83-0
931-54-4
933-98-2
934-80-5
1068-87-7
1077-16-3
1120-21-4
1320-37-2
1333-41-1
1334-78-7
1502-38-1
1640-89-7
1678-91-7
1759-58-6
1762-26-1
1762-27-2
1762-28-3
1795-27-3
2049-94-7
2213-23-2
2216-30-0
2216-33-3
Chemical Name
1 -ETHYL-2-METHYLBENZENE
(E)-3-METHYL-2-PENTENE
3-METHYL- 1 H-PYRROLE
3-METHYLTHIOPHENE
3-ETHYLHEXANE
1-ETHYL-3-METHYLBENZENE
1 -ETHYL-4-METHYLBENZENE
(E)-2-BUTENE
DIMETHYLDISULFIDE
2-METHYL-2-PENTENE
(Z)-2-PENTENE
1 -CHLORO-2-METHOXYETHANE
TRIDECANE
TETRADECANE
PENTADECANE
HEPTADECANE
1, 1,1,2-TETRACHLOROETHANE
2-METHYL- 1 H-PYRROLE
(E)-2-PENTENE
(E)-4-METHYL-2-PENTENE
(Z)-4-METHYL-2-PENTENE
1 -METHYLCYCLOPENTENE
2-METHYL-1-PENTENE
2-METHYLNONANE
ISOCYANOBENZENE
1 -ETHYL-2,3-DIMETHYLBENZENE
4-ETHYL-1 ',2-DIMETHYLBENZENE
3-ETHYL-2,4-DIMETHYL PENTANE
HEXYLBENZENE
UNDECANE
DICHLOROTETRAFLUOROETHANE
METHYLPYRIDINE
METHYLBENZALDEHYDE
METHYLCYCLOOCTANE
ETHYLCYCLOPENTANE
ETHYLCYCLOHEXANE
TRANS-1,3-DIMETHYL CYCLOPENTANE
ETHYLTRIMETHYLPLUMBANE
DIETHYLDIMETHYLPLUMBNANE
TRIETHYLMETHYLPLUMBANE
1A,3A,5A-TRIMETHYLCYCLOHEXANE
(3-METHYLBUTYL)-BENZENE
2,4-DIMETHYLHEPTANE
2,5-DIMETHYLHEPTANE
3-METHYLOCTANE
(continued)
-------
Tablo 1.
Data
Base
Chem-
ical
Wo.
271
272
273
274
275
276
277
270
279
280
281
282
283
284
285
286
287
288
289
290
29 1
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
(Continued)
Chemical
Abstracts
System
Number
2216-34-4
2278-22-0
2532-58-3
2807-30-9
3522-94-9
3737-00-6
4050-45-7
4461-48-7
4885-02-3
5796-89-4
5989-27-5
5989-54-8
6443-92-1
7642-04-8
7642-09-3
7688-21-3
10061-01-5
10061-02-6
12002-48-1
13269-52-8
13466-78-9
14686-13-6
17301-94-9
17700-09-3
25167-67-3
25167-93-5
25321-22-6
25323-30-2
25619-60-7
26446-77-5
26952-23-8
27134-26-5
27195-67-1
27900-75-0
28699-88-9
28729-52-4
28807-97-8
29224-55-3
29733-70-8
29797-40-8
30025-33-3
30498-63-6
30583-33-6
30677-34-0
32368-69-7
4
Chemical Name
4-METHYLOCTANE
ACETYL NITRO PEROXIDE
CIS-1.3-OIMETHYL CYCLOPENTANE
2-PROPOXY ETHANOL
2,2,5-TRIMETHYLHEXANE
3-BROMO- 1 -CHLORO- 1 -PROPENE
(E)-2-HEXENE
4-METHYL-2-PENTENE
DICHLOROMETHOXYMETHANE
NITRO-1-OXOPROPYLPEROXIDE
(R)-1-METHYL-4-(1-METHYLETHENYL)-CYCLOHEXENE
(S)-1-METHYL-4-(1-METHYLETHENYL)-CYCLOHEXENE
(Z)-2-HEPTENE
(Z)-2-QCTENE
(Z)-3-HEXENE
(Z)-2-HEXENE
(Z)-1,3-DICHLORO-1 -PROPENE
(E)-1 ,3-DlCHLORO-l -PROPENE
TRtCHLOROBENZENE
(E)-3-HEXENE
3J,7-TRIMETHYLBICYCLO[4.1.0}HEPT-3-ENE
(E)-2-HEPTENE
4-METHYLNONANE
TETRACHLOROBENZENE
BUTENE
CHLORONITROBENZENE
DICHLOROBENZENE
DICHLOROETHENE
TETRAMETHYL BENZENE
BROMOPROPANE
DICHLORO-1 -PROPENE
CHLOROBENZENEAMINE
DIMETHYLCYCLOHEXANE
DICHLORONITROBENZENE
DICHLORONAPHTHALENE
DIMETHYLCYCLOPENTANE
BROMOMETHYLBENZENE
ETHYL DIMETHYL BENZENE
TETRACHLOROMETHYLBENZENE
DICHLOROMETHYLBENZENE
BENZENEDICARBOXALDEHYDE
TRIMETHYLCYCLOHEXANE
TRICHLOROMETHYLBENZENE
ETHYLMETHYLCYCLOHEXANE
BENZOYL NITRO PEROXIDE
(continued)
10
-------
Table 1. (Continued)
Data
Base
Chem-
ical
No.
316
317
318
319
320
Chemical
Abstracts
System
Number
34652-54-5
55162-35-1
55880-77-8
67708-83-2
79504-02-2
Chemical Name
BROMOCHLOROPROPANE
1, 1 -DIBROMO-2-CHLOROPROPANE
PENTACHLORO- 1 ,3-BUTADIENE
DIBROMOCHLOROPROPANE
BROMOPENTACHLOROETHANE
Table 2. dBASE III Plus File Structure
CONCENTRATION FILE
Reference Number
Site Number
Chemical Number
Concentration (in parts per billion)
Relative Standard Deviation
Number of Samples
Sampling Duration
Maximum Concentration
Minimum Concentration
Start Date
Start Time
Stop Date
Stop rime
Hours Between Sampling and Analysis
Number of Samples Less Than The Minimum
Quantifiable Level
Comments
Ranking
Rating
METHODS FILE
Reference Number
Site Number
Chemical Number
Sampling Method
Analysis Method
Minimum Quantifiable Level
SITE FILE
Reference Number
Site Number
Site Type
Latitude
Longitude
Site Address
C/ly
State
SAROAD Number
REFERENCE FILE
Reference Number
Chemicals Measured
Principal Investigator
Authors
Title
Citation
Year
Number of Data Records
Objective
* U.S. Govtrnnunt Printing Office: IBM—505-007/67127 2-1
11
-------
Jitendra J. Shaft and Emily K. Heyerdahl are with Nero and Associates, Inc.,
Portland, OR 97204.
Larry T. Cupitt is the EPA Project Officer (see below).
The complete report consists of paper copy and diskettes, entitled "National
Ambient Volatile Organic Compounds (VOCs) Data Base Update,"
Paper copy (Order No. PB 88-195 6311 AS; Cost $19.95)
Diskettes (Order No. PB 88-189 0221 AS; Cost $325.00; cost includes
paper copy)
The above items will be available only from: (cost subject to change)
National Technical Information Service
5285 Port Royal Road
Springfield, VA 22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at:
Atmospheric Sciences Research Laboratory
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711
Z U .0
United States
Environmental Protection
Agency
Center for Environmental Research
Information
Cincinnati OH 45268
Official Business
Penalty for Private Use $300
EPA/600/S3-88/010
0000329 PS
------- |