swm4_00
TRANSCRIPT
8/19/2019 swm4_00
http://slidepdf.com/reader/full/swm400 1/6
TMDL Meeting
UC Cooperative Extension
Irvine, CA
April 20, 2000
Department of Pesticide Regulation
www.cdpr.ca.gov
Surface Water Monitoring of
RIFA and OP Insecticides
Kean S. Goh, Dave Kim,
Johanna Walters, Roger Sava
Environmental Monitoring & Pest Management
Department of Pesticide Regulation
830 K Street, Sacramento, CA 95814
(916)324-4072
Outline
• Introduction
• Monitoring Plan
• Insecticides
• Results & Discussion
• Conclusions
Introduction
• RIFA treatments - large geographic area
• Surface-water runoff potential
• Historical monitoring data
• Aquatic toxicity
• Runoff prevention and mitigation
8/19/2019 swm4_00
http://slidepdf.com/reader/full/swm400 2/6
Monitoring Program
• Insecticide Concentration
– Offsite movement
• Dissipation study
– Turf, Soil, Water
• Assessing Mitigations
The Insecticides
• Bifenthrin (Talstar®)
• Chlorpyrifos (Dursban®, Lorsban®)
• Diazinon
• Fenoxycarb (Award®)
• Hydramethylnon (Amdro®)
• Pyriproxyfen (Distance®)
• Malathion, fonofos, methidathion,
methyl parathion, dimethoate, phosmet
Pesticide Sol. Koc FDBifenthrin 0.1 302,000 345
Chlorpyrifos 1.4 12,000 56
Diazinon 60 1,800 30
Fenoxycarb 5.7 2,600 36
Hydramethylnon 0.9 360,000 55
Pyriproxyfen 0.4 34,000 86
Physico-Chemical Properties Aquatic Toxicity (LC 50 )
Pesticide R. Trout (ppb) D.Magna (ppb)
Bifenthrin 0.15 0.16
Chlorpyrifos 3 1.7
Diazinon 2600 0.96
Fenoxycarb 1600 400
Hydramethylnon 160 1140
Pyriproxyfen 325 400
Malathion 170 1.8
8/19/2019 swm4_00
http://slidepdf.com/reader/full/swm400 3/6
Jun-
99Jul-
99
Aug-
99
Sep-
99Oct-
99
Nov-
99
Dec-
99Jan-
00Feb-
00
b i f e n t h r i n
d i a z i n o n
f o n o f o s
m . p a r a t h i o n0
1
2
3
4
5
6
7
8
C o n c e n t r a t i o n
( p p b )
Bee Canyon Drain
bifenthrin
chlorpyrifos
diazinon
dimethoate
fonofos
malathion
m. parathion
May-99 Jun-99 Sep-99 Oct-99 Dec-99 Jan-00 Feb-00
0
1
2
3
4
5
6
7
8
C o n c e n t r a t i o n
( p p b )
Hines Channel
bifenthrin
chlorpyrifos
diazinon
dimethoate
malathion
m. parathion
Marshburn Slough
0
1
2
3
Feb-00
C o n c e n t r a t i o n
( p p b ) bifenthrin
chlorpyrifosdiazinonmalathion
8/19/2019 swm4_00
http://slidepdf.com/reader/full/swm400 4/6
San Diego Creek
0
1
2
Mar-
99
Apr-
99
May-
99
Jun-
99
Sep-
99
Oct-
99
Dec-
99
Jan-
00
Feb-
00
C o n c e n t r a t i o n
( p p b )
chlorpyrifos
diazinon
dimethoate
fonofos
malathion
Bonita Creek
0
1
2
3
Sep-99 Oct-99 Nov-99 Dec-99 Jan-00 Feb-00
C o n c e n t r a t i o n
( p p b )
diazinon
malathion
Westcliff Park
0
1
2
3
Dec-99 Jan-00 Feb-00
C o n c e n t r a t i o n
( p p b )
chlorpyrifos
diazinon
methidathion
Bolsa Chica Channel
0
1
2
3
Apr-99 May-99 Jun-99 Sep-99 Oct-99 Dec-99 Jan-00 Feb-00
Month
C o n c e n t r a t i o n ( p p b )
diazinon
dimethoate
malathion
8/19/2019 swm4_00
http://slidepdf.com/reader/full/swm400 5/6
East Garden Grove Channel
0
1
2
3
Jun-99 Jul-99 Aug-99 Sep-99 Oct-99 Nov-99 Dec-99 Jan-00 Feb-00
C o n c e n t r a t i o n ( p p b
chlorpyrifos
diazinon
malathion
Oso Creek
0
1
2
Mar-
99
Mar-
99
Apr-
99
Apr-
99
Apr-
99
Apr-
99
May-
99
Jun-
99
Sep-
99
Oct-
99
Dec-
99
Jan-
00
Feb-
00
C o n c e n t r a t i o n
( p p b )
bifenthrin
fenoxycarb
hydramethylnon
chlorpyrifos
diazinon
dimethoate
fonofos
malathion
Arroyo Trabuco
0
1
2
Mar-
99
Mar-
99
Apr-
99
Apr-
99
Apr-
99
Apr-
99
May-
99
Jun-
99
Sep-
99
Oct-
99
Dec-
99
Jan-
00
Feb-
00
C o n c e n t r a t i o n
( p p b )
bifenthrin
fenoxycarb
hydramethylnon
pyriproxyfen
chlorpyrifos
diazinon
fonofos
malathion
San Juan Creek
0
1
2
Apr-99
May-99
Sep-99
Oct-99 Dec-99
Jan-00
Feb-00
C o n c e n t r a t i o n
( p p b )
chlorpyrifosdiazinonfonofosmalathion
Conclusions
• All RIFA insecticides were detected
• Single detects: hydramethylnon, pyriproxyfen, fenoxycarb
• Nurseries: Bifenthrin, Diazinon,(Malathion), Chlorpyrifos, (Dimethoate)<3 ppb
• Urban: Diazinon, Malathion, Chlorpyrifos<1 ppb
8/19/2019 swm4_00
http://slidepdf.com/reader/full/swm400 6/6
Acknowledgment• Calif. Dept. of Food & Agriculture
– Center for Analytical Chemistry
– Pest Detection/Emergency Project
• Santa Ana RWQC B
• State Water Resource Control Board
• Dept. of Health Services
• Calif. Department of Fish & Game
• Co. Agric. Commissioners
• UC Cooperative Extension
• Nursery Industries