Mean
(95% CI)

 

Sd

 

Minb

Percentile

 

Maxb

25th

50th

75th

90th

PAH

Benz(a)anthracene

734.20
(510.71, 1093.06)

2238.72

<42

220.00
(194.00, 269.00)

380.00
(345, 426)

611.50
(512.5, 768)

1304.00
(935.94, 1702)

30500.00

Benzo(b)fluoranthene

1742.46
(1355.58, 2344.70)

3593.64

<42

607.00
(509.00, 737.04)

1080.0
(988, 1260)

1760.0
(1535, 1960)

3274.0
(2690, 3868)

47400.00

Benzo(a)pyrene

956.07
(700.52, 1359.54)

2514.75

<42

303.50
(265.00, 367.00)

529.00
(480, 607)

909.50
(795.50, 1100.00)

1682.00
(1310, 2396)

34200.00

Chrysene/iso-chrysene

1392.40
(1065.02, 1888.02)

3036.93

<42

473.00
(413.00, 576.54)

857.0
(769, 960)

1370.0
(1170.00, 1645.00)

2498.0
(1982, 3253)

40200.00

Pesticides

Current

 

 

 

 

 

 

 

 

2,4-D(2-ethylhexyl) ester

-

-

<14

-

-

-

-

1410

Carbaryl

1465.62
(517.53, 3007.09)

9406.48

<88

2.02
(0.37, 10.03)

13.78
(4.21, 50.58)

120.06
(47.35, 292.50)

1610.00
(525.80, 2894.00)

124000

Cis-permethrin

7565.05
(4938.11, 10971.36)

21766.53

<43

353.50
(285.00, 444.00)

1070.00
(781, 1770)

4220.00
(3200.00, 6410.00)

17180.00
(10168.00, 28760.00)

218000

Trans-permethrin

9311.45
(6240.47, 13157.74)

25200.45

<70

536.00
(442.00, 795.00)

1650.00
(1140, 2390)

5715.00
(4400.00, 8260.00)

21360.00
(13500.00, 33940.00)

234000

O-phenylphenol

297.62
(203.80, 426.48)

835.62

<40

99.95
(89.60, 118.50)

166.00
(146.00, 183.00)

251.50
(212.00, 304.00)

427.60
(370.00, 514.60)

8360

Restricted

 

 

 

 

 

 

 

 

Alachlor

-

-

<14

-

-

-

-

708

Chlorpyrifos

959.34
(460.29, 1661.56)

4497.45

<29

59.55
(46.70, 97.30)

181.00
(144.00, 246.00)

596.00
(438.00, 781.50)

1320.00
(970.20, 1806.00)

45600

Diazinon

75.74
(54.57, 102.44)

176.20

<14

7.93
(4.32, 14.52)

20.43
(12.95, 31.87)

61.15
(45.04, 103.00)

200.40
(143.00, 243.00)

1860

Lindane

-

-

<29

-

-

-

-

4970

Banned

 

 

 

 

 

 

 

 

α-Chlordane

548.78
(390.23, 732.86)

1247.12

<34

29.02
(19.02, 43.93)

109.00
(69.30, 169.00)

506.00
(377.00, 691.00)

1274.00
(985.60, 2246.00)

12500

γ-Chlordane

974.09
(692.20, 1351.55)

2389.32

<34

39.92
(28.16, 53.60)

200.00
(106.00, 311.00)

984.00
(685.00, 1280.00)

2464.00
(1598.00, 3490.00)

25800

4,4’-DDE

113.46
(61.95, 185.78)

461.89

<14

2.82
(1.04, 7.47)

10.43
(5.48, 20.42)

56.05
(27.87, 80.50)

181.20
(104.38, 314.40)

4890

4,4’-DDT

1183.60
(462.13, 2170.51)

6219.59

<43

11.28
(4.40, 26.02)

51.96
(28.69, 100.21)

341.00
(193.00, 534.00)

1702.00
(957.81, 2724.00)

59200

Dieldrin

-

-

<170

-

-

-

766.00c

6480

Heptachlor

182.81
(125.97, 251.72)

453.12

<34

9.06
(4.54, 17.08)

26.04
(16.66, 45.65)

144.00
(73.80, 191.00)

515.20
(286.40, 800.00)

3980

Methoxychlor

195.07
(117.15, 297.10)

652.40

46.60

7.02
(2.32, 16.39)

21.68
(10.30, 41.71)

87.80
(49.82, 129.00)

296.20
(221.00, 630.40)

5710

aSummary statistics including percentiles, mean and standard deviation were estimated using ROS.
bThe minimum and maximum values are based on observed data. Except in the case of methoxychlor, the minimum is a non detect at the minimum detection limit used for a particular compound. For methoxychlor, the minimum is a detected concentration.
cThe 95th percentile is reported because the 90th percentile was a censored value.
Table 2: Summary statisticsa for household dust samples (ng/g).