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Table 6 Dust concentrations for select organophosphorous pesticides and pyrethroids from select U.S. farmworker studies (ng/g).a

From: Pesticides in house dust from urban and farmworker households in California: an observational measurement study

Author

Population

Location

Collection method

Sampling Dates

Pesticides

LOD (ng/g)b

DF%

n

Range (ng/g)

Median

Mean (SD)

Harnly et al. 2009c

Farmworkers (CHAMACOS longitudinal birth cohort)

Salinas Valley, CA

HVS3

2000-2002

Organophosphates:

      
     

   Chlorpyrifos

2

91

177-197

2.9-7850

74

NR

     

   Diazinon

2

86

 

4.7-2870

26

 
     

Pyrethroids:

      
     

   cis-Permethrin

5

98

 

16-168000

344

 
     

   trans-Permethrin

5

98

 

146-265000

467

 
     

Others:

      
     

   Chlorthal-dimethyl

2

98

 

2.3-271

22

 

Bradman et al. 2006d

Farmworkers

Salinas Valley, CA

HVS3

June-September 2002

Organophosphates:

      
     

   Chlorpyrifos

2

95

20

<LOD-1200

49

NR

     

   Diazinon

 

100

 

4-810

21

 
     

   Malathion

 

20

 

<LOD-480

NR

 
     

Pyrethroids:

      
     

   cis-Permethrin

 

100

 

13-2900

150

 
     

   trans-Permethrin

 

100

 

22-5800

230

 
     

Others:

      
     

   Chlorthal-dimethy

 

100

 

6.5-110

31

 

Rothlein et al. 2006

Farmworkers

Hood River, OR

HVS3

Summer 1999

Chlorpyrifos

10

92

26

<LOD-1200

130

200(240)

     

Diazinon

10

77

 

<LOD-720

310

310(230)

     

Malathion

10

81

 

<LOD-1400

180

380(400)

Curl et al. 2002

Agricultural Workers

Yakima Valley, Washington State

Nilfisk vacuum cleaner

June-September 1999

Chlorpyrifos

150

26

156

<LOD-2560

50

NR

     

Diazinon

170

3.8

 

<LOD-770

10

 
     

Malathion

160

15

 

<LOD-1030

40

 

Fenske et al. 2002e

Ag (at least one family member employed as an orchard applicator (APP) or farmworker (FW))

Central Washington State (major tree fruit production region)

HVS3

May-July 1995

Chlorpyrifos

LOQ: 13-27(varied batch to batch)

APP: 100

FW: 100

APP: 49

FW: 12

APP: 10-2600

FW: 70-560

APP: 370 FW: 250

APP: 550(580) FW: 270(180)

Simcox et al. 1995

Farmers (F), Farmworkers (FW)e

Wenatchi area (eastern Washington State)

HVS3

Jan-July 1992

Chlorpyrifos

LOD: 20 ng/mL

LOQ: 17 ng/g

F: 96 FW:100

F: 26 FW: 22

F: <LOD-3585

FW: 40-2180

F: 372 FW: 172

F: 506

FW: 338

SD not reported

  1. a. Other studies may have measured additional analytes; only those relevant to the ones measured in our study are included. b. Unless otherwise indicated, limits of detection (LODs) are in ng/g. In some cases a limit of quantitation (LOQ) was reported instead of an LOD. c. Other analytes were also measured, but detection frequencies were <50%. Analytes included: malathion, methidathion, and iprodione. Minimum value reported in the "Range" column is the lowest quantified concentration. d. Other analytes were also measured, but detection frequencies were <50%. Analytes included allethrin, bifenthrin, cypermethrin, deltamethrin, esfenvalerate, sumithrin, and iprodione. Malathion had a detection frequency <50% in this study, but respective information is presented for comparison with other farmworker studies. e. Also included a reference population, but information is not provided in this table. SD = Standard deviation; NR: Value not reported; <LOD: Indicates that value reported was below the limit of detection or not detected.
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Environmental Health

ISSN: 1476-069X