Summary of Volatile Organic Compound (VOC) Analyses for Indiana Harbor Air Monitoring Program
ECI-East Site
(units in ppb)ECI-East Site
(units in ug/m3)East Chicago High School Site
(units in ppb)East Chicago High School Site
(units in ug/m3)Footnotes to Data Tables
|
ECI-East Air Monitoring Station (all units in parts per billion - ppb) |
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|
CAS |
Component |
Reporting Limit |
Result (11/6/2001) |
Result (11/12/2001) |
Result (11/19/2001) |
Result (12/3/2001) |
Result (12/9/2001) |
Result (12/15/2001) |
|
|
71432 |
Benzene |
0.2 |
0.43 |
0.46 |
0.6 |
0.31 |
0.38 |
0.37 |
|
|
100414 |
Ethylbenzene |
0.2 |
ND |
ND |
ND |
ND |
ND |
ND |
|
|
108883 |
Toluene |
0.3 |
1.3 |
0.9 |
1.3 |
0.47 |
0.56 |
0.89 |
|
|
95636 |
1,2,4-Trimethylbenzene |
0.4 |
ND |
ND |
ND |
ND |
ND |
ND |
|
|
108678 |
1,3,5-Trimethylbenzene |
0.4 |
ND |
ND |
ND |
ND |
ND |
ND |
|
|
136777612 |
m-Xylene & p-Xylene |
0.5 |
0.54 |
ND |
0.68 |
ND |
ND |
ND |
|
|
95476 |
o-Xylene |
0.2 |
0.2 |
ND |
0.23 |
ND |
ND |
ND |
|
| Total Xylenes | 0.74 |
ND |
0.91 |
ND |
ND |
ND |
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|
ECI-East Air Monitoring Station (all units in micrograms per cubic meter, ug/m3) |
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|
CAS |
Component |
Reporting Limit |
Result (11/6/2001) |
Result (11/12/2001) |
Result (11/19/2001) |
Result (12/3/2001) |
Result (12/9/2001) |
Result (12/15/2001) |
|
|
71432 |
Benzene |
0.64 | 1.37 | 1.47 | 1.91 | 0.99 | 1.21 | 1.18 | |
|
100414 |
Ethylbenzene |
0.87 |
ND |
ND | ND | ND | ND | ND | |
|
108883 |
Toluene |
1.13 | 4.90 | 3.39 | 4.90 | 1.77 | 2.11 | 3.36 | |
|
95636 |
1,2,4-Trimethylbenzene |
1.97 | ND | ND | ND | ND | ND | ND | |
|
108678 |
1,3,5-Trimethylbenzene |
1.97 | ND | ND | ND | ND | ND | ND | |
|
136777612 |
m-Xylene & p-Xylene |
2.17 | 2.34 | ND | 2.95 | ND | ND | ND | |
|
95476 |
o-Xylene |
0.87 | 0.87 | ND | 1.00 | ND | ND | ND | |
|
Total Xylenes |
3.2 | ND | 3.9 | ND | ND | ND | |||
| (all units in parts per billion - ppb) | |||||||||
|
CAS |
Component |
Reporting Limit |
Result (11/6/2001) |
Result (11/12/2001) |
Result (11/19/2001) |
Result (12/3/2001) |
Result (12/9/2001) |
Result (12/15/2001) |
|
|
71432 |
Benzene |
0.2 |
nc |
nc |
nc |
0.27 |
0.45 |
0.26 |
|
|
100414 |
Ethylbenzene |
0.2 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
108883 |
Toluene |
0.3 |
nc |
nc |
nc |
0.49 |
0.59 |
0.65 |
|
|
95636 |
1,2,4-Trimethylbenzene |
0.4 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
108678 |
1,3,5-Trimethylbenzene |
0.4 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
136777612 |
m-Xylene & p-Xylene |
0.5 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
95476 |
o-Xylene |
0.2 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
Total Xylenes |
nc |
nc |
nc |
ND |
ND |
ND |
|||
| (all units in micrograms per cubic meter, ug/m3 ) | |||||||||
|
CAS |
Component |
Reporting Limit |
Result (11/6/2001) |
Result (11/12/2001) |
Result (11/19/2001) |
Result (12/3/2001) |
Result (12/9/2001) |
Result (12/15/2001) |
|
|
71432 |
Benzene |
0.64 |
nc |
nc |
nc |
0.86 | 1.44 | 0.83 | |
|
100414 |
Ethylbenzene |
0.87 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
108883 |
Toluene |
1.13 |
nc |
nc |
nc |
1.85 | 2.22 | 2.45 | |
|
95636 |
1,2,4-Trimethylbenzene |
1.97 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
108678 |
1,3,5-Trimethylbenzene |
1.97 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
136777612 |
m-Xylene & p-Xylene |
2.17 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
95476 |
o-Xylene |
0.87 |
nc |
nc |
nc |
ND |
ND |
ND |
|
|
Total Xylenes |
nc | nc | nc | ND | ND | ND | |||
Footnotes to Data Tables
CAS Number:
This number, the Chemical Association Service number, is used by scientists around the world. Each chemical is given a unique number that allows scientist to ensure that they are talking about the same chemical regardless of chemical name.ND : "Non-Detect" - The laboratory establishes reporting limits for sampling events for each chemical included in this study. The reporting limit is the minimum amount that the laboratory could detect accurately. When a data entry contains the non-detect or 'ND' tag, it means the chemical compound in the sample was below the reporting limit.
NC: "Not Collected" - Indicates that a sample was not collected at a particular date and location.
NA: "Not Available" - Some chemicals do not have established risk-based concentrations. This could be for a variety of reasons. US EPA may not have adequate information about the health effects of the chemical or data are not available to make determinations about cancer risks.
Reporting Limit: The lowest amount that can be distinguished from the normal "noise" of an analytical instrument or method as established by the laboratory.
Units: This represents the unit of measure the chemical concentration is reported. Three different units of measure are commonly used to represent concentrations of compounds in air: