Summary of FY02 Ambient Air Monitoring Data – Median Values

Component

Units

Detection Limit

North

East

South

West

High School

 

 

 

 

 

 

 

 

Volatile Organic Compounds

 

 

 

 

 

 

 

Benzene

ppb

0.20

0.62

0.43

0.30

0.26

0.28

Ethylbenzene

ppb

0.20

ND

ND

ND

ND

ND

Toluene

ppb

0.30

0.91

0.76

0.53

0.41

0.44

1,2,4-Trimethylbenzene

ppb

0.40

0.41

ND

ND

ND

ND

1,3,5-Trimethylbenzene

ppb

0.40

ND

ND

ND

ND

ND

m-Xylene & p-Xylene

ppb

0.50

ND

0.51

ND

ND

0.51

o-Xylene

ppb

0.20

0.23

ND

ND

ND

ND

 

 

 

 

 

 

 

 

Polyaromatic Hydrocarbons

 

 

 

 

 

 

 

Acenaphthene

ng/scm

1.2 - 4.6

3.93

4.34

4.53

3.11

ND

Acenaphthylene

ng/scm

1.2 - 4.6

1.30

ND

ND

ND

ND

Anthracene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Benzo(a)anthracene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Benzo(a)pyrene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Benzo(b)fluoranthene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Benzo(e)pyrene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Benzo(ghi)perylene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Benzo(k)fluoranthene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Chrysene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Dibenz(a,h)anthracene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Fluoranthene

ng/scm

1.2 - 4.6

1.23

1.35

ND

ND

ND

Fluorene

ng/scm

1.2 - 4.6

4.53

5.89

5.52

4.16

4.03

Indeno(1,2,3-cd)pyrene

ng/scm

1.2 - 4.6

ND

ND

ND

ND

ND

Naphthalene

ng/scm

4.5 - 9.1

55.28

74.49

56.38

53.26

57.20

Phenanthrene

ng/scm

1.2 - 4.6

9.74

8.99

7.82

7.71

7.19

Pyrene

ng/scm

1.2 - 4.6

1.35

ND

ND

ND

ND

 

 

 

 

 

 

 

 

Polychlorinated Biphenyls

 

 

 

 

 

 

 

PCB 8

pg/scm

2.25 - 4.56

21.91

24.95

21.72

17.77

15.55

PCB 15

pg/scm

2.25 - 4.56

2.84

3.07

4.12

ND

ND

PCB 18

pg/scm

2.25 - 4.56

14.42

12.86

18.00

8.55

9.20

PCB 31

pg/scm

2.25 - 4.56

7.90

9.25

13.21

6.09

5.90

PCB 28

pg/scm

2.25 - 4.56

8.00

9.50

12.91

6.22

6.36

PCB 77

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 81

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 105

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 114

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 118

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 123

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 126

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 156

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 157

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 167

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 169

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 170

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 180

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

PCB 189

pg/scm

2.25 - 4.56

ND

ND

ND

ND

ND

 

 

 

 

 

 

 

 

Total Suspended Particulates

ug/scm

 

33

29

26

25

25

 

 

 

 

 

 

 

 

RCRA Metals

 

 

 

 

 

 

 

Arsenic

ng/scm

1.1 - 1.6

ND

ND

ND

ND

ND

Barium

ng/scm

0.55 - 0.82

22

25

20

21

23

Cadmium

ng/scm

0.55 - 0.82

ND

ND

ND

ND

ND

Chromium

ng/scm

1.1 - 1.6

2.5

2.7

2.5

3

2.5

Lead

ng/scm

0.55 - 0.82

7.5

8.1

6.7

6.9

7.8

Selenium

ng/scm

1.1 - 1.6

ND

ND

ND

ND

ND

Silver

ng/scm

0.55 - 0.82

ND

ND

ND

ND

ND

1.        VOC, PAH, & PCB data based on data collected from Nov. 2001 – July 2002.
2.        TSP Metals results based on data collected from April 2002 – July 2002.
3.        ND : "Non-Detect" - When a data entry contains the non-detect or 'ND' tag, it means the chemical compound in the sample was below the Detection Limit, as defined below. 4.        Detection Limit: The Detection Limit shown here actually refers to the laboratory reporting limit, below which the laboratory cannot accurately quantify the concentration of the said parameter.
5.        Units: This represents the unit of measure that each chemical concentration is reported in. Four different units of measure are commonly used to represent concentrations of compounds in air:
   ppb: Part per billion - One part per billion is 1 part in 1,000,000,000.    ug/m3: Micrograms per cubic meter of air - One microgram is 10-6 of a gram.    ng/m3: Nanograms per cubic meter of air – One nanogram is 10-9 of a gram.    pg/m3: Picograms per cubic meter of air – One picogram is 10-12 of a gram.