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2016OISCPes-cideDri3Inves-ga-ons–StudyofaNew
SamplingDesign
AAPCOLabCommiFeeMee-ngMarch6-7,2017
2
Wind
TargetFieldSwab,Veg,Soil
Swab-1,Veg-1,Soil-1
Swab-4,Veg-4,Soil-4
Swab-3,Veg-3,Soil-3
Swab-2,Veg-2,Soil-2
ControlSamples?
Sampling
3
• BoFleneck=vegeta-onsampleprep
• Swabseasytoanalyze,muchshorterturnaround-methanveg
• Doswabsamplesprovideallnecessaryinfofordri3cases?
• Ifyes,swabswillbeanalyzedandvegretained
• Ifno,analyzevegforaddi-onaldata
• Ifswabsposi-ve,dowes-llneedtoanalyzeveg?
BackgroundandStudyObjec-ves
4
2016OISCDri3CaseInves-ga-onsSummary
TriclopyrThiencarbazone-methylTetraconazoleTebuconazoleSulfentrazoneSimazineSaflufenacilPyraclostrobinPropiconazoleParaquatMetolachlorMetsulfuron-methylGlyphosateGlufosinate
MetribuzinMetalaxylMetconazoleImidaclopridImazethapyrImazapyr2,4-DDicambaDimethenamidClethodimBifenthrinAzoxystrobinAtrazineAcetochlor
102casestotal
5
Dri3CaseSimazineSample # Sample Description Sample Matrix
Amount Found
Simazine
2016 51 0038 SWABTRIPBLANK Swab BDL
2016 51 0039 VEGETATIONSWABFROMTREE90FTFROMFIELD Swab 7.6 (ng/swab)
2016 51 0040 VEGETATIONFROMTREE90FTFROMFIELD Vegetation 51.9 (ppb)
2016 51 0041 VEGETATIONSWABFROMTREE60FTFROMFIELD Swab 541.4 (ng/swab)
2016 51 0042 VEGETATIONFROMTREE60FTFROMFIELD Vegetation 316.9 (ppb)
2016 51 0043 VEGETATIONSWABFROMPLANT50FTFROMFIELD Swab 33.0 (ng/swab)
2016 51 0044 VEGETATIONFROMPLANT50FTFROMFIELD Vegetation 173.4 (ppb)
2016 51 0045 VEGETATIONSWABFROMTREE30FTFROMFIELD Swab 474.6 (ng/swab)
2016 51 0046 VEGETATIONFROMTREE30FTFROMFIELD Vegetation 850.3 (ppb)
2016 51 0047 VEGETATIONSWABFROMTARGETFIELD30FTINSIDEFIELD
Swab 3322.6 (ng/swab)
2016 51 0048 VEGETATIONFROMTARGETFIELD30FTINSIDEFIELD Vegetation 27347.8 (ppb)
6
Simazineppborng/swab
7
Azoxystrobinppborng/swab
226yds
226yds
183yds
183yds142yds
142yds
125yds
125yds
03
03
1
10
100
1000
SW4 V4 SW3 V3 SW2 V2 SW1 V1 SW0 V0
8
Tebuconazoleppborng/swab
Target
1
10
100
1000
SWVeghive#5-6 Veghive#5-6 SWVeghive#1-4 Veghive#1-4 SW107yd Veg107yd SWmaple Vegmaple SW0 V0
Bush107yd
MapleBeeHives1-4
BeeHives5-6
9
2,4-Dppborng/swab
1413 1413 1083
1083
633
633
303
30303
1
10
100
1000
10000
SW1 V1 SW2 V2 SW3 V3 SW4 V4 SW0
10
Glufosinateppborng/swab
Maple
1
10
100
1000
10000
SW3 V3 SW2 V2 SW1 V1 SW0 V0
CherryBQL
SwabCherryBDL
SwabOrnamentalBDL
Orna-mentalBQL
MapleSwabBDL
11
1. SwabPosi-ve,VegPosi-ve43%
2. SwabNega-ve,VegPosi-ve26%
3. SwabNega-ve,VegNega-ve30%
4. SwabPosi-ve,VegNega-ve1%
2016OISCDri3CaseInves-ga-onsSummary
143%
226%
330%
41%
1 2 3 4
12
1. WatersolubleA.I.weathercondi-on?
2. Systemic?A.I.absorbed/uptakenbyplants
3. Timepastbetweenapplica-onandsampling?
4. Analy-calcapability,LODs
5. Other?
Q:Why?Swabnega-ve/Vegposi-ve