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Scientific Investigations Report 2007–5180

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5180

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Appendix A. Pesticides and Pesticide Degradates Analyzed for This Study, Yakima River Basin, Washington

[Reporting levels represent the value at which an undetected compound is reported as less than. If detected and quantifiable, a compound will be reported less than this value and flagged in the database with an "E" (estimated). Reporting units are in micrograms per liter. Abbreviations: GCMS, capillary-column gas chromatography/mass spectrometry with selected ion monitoring; HPLCMS, high performance liquid chromatography/mass spectrometry; USGS, U.S. Geological Survey; –, not applicable]

Compound Use Chemical class Parent pesticide Laboratory method USGS Reporting level
Parameter code Laboratory schedule
Detected pesticides
1,4-Naphthoquinone Degradate Quinone Napropamide, Carbaryl GCMS 61611 9002 0.008
1-Naphthol Degradate Phenol Carbaryl, Napropamide GCMS 49295 9002 .036
2-(4-tert-butylphenoxy)-cyclohexanol Degradate Aliphatic alcohol Propargite GCMS 61637 9002 .004
2,4-D Herbicide Chlorophenoxy acid – HPLCMS 39732 9060 .022
2,4-D methyl ester Herbicide Chlorophenoxy acid ester – HPLCMS 50470 9060 .009
2-Hydroxyatrazine Degradate Triazine Atrazine HPLCMS 50355 9060 .008
3,4-Dichloroaniline Degradate Aniline Diuron, Linuron, Neburon, Propanil GCMS 61625 9002 .002
4,4'-Dichlorobenzophenone Degradate Organochlorine DDT, Dicofol GCMS 61631 9002 .001
Acetochlor Herbicide Chloroacetanilide – GCMS 49260 2001 .002
Alachlor Herbicide Chloroacetanilide – GCMS 46342 2001 .001
Atrazine Herbicide Triazine – GCMS 39632 2001 .004
Azinphos-methyl Insecticide Organothiophosphate – GCMS 82686 2001 .020
Bentazon Herbicide Benzothiadiazole – HPLCMS 38711 9060 .011
Bifenthrin Insecticide Pyrethroid – GCMS 61580 9002 .001
Bromacil Herbicide Uracil – HPLCMS 04029 9060 .033
Bromoxynil Herbicide Benzonitrile – HPLCMS 49311 9060 .017
Carbaryl Insecticide Carbamate – HPLCMS 49310 9060 .028
Carbofuran Insecticide Carbamate – GCMS 82674 2001 .010
Chlorpyrifos Insecticide Organothiophosphate – GCMS 38933 2001 .003
Clopyralid Herbicide Pyridine – HPLCMS 49305 9060 .014
Cyanazine Herbicide Triazine – GCMS 04041 2001 .009
p,p'-DDE Degradate Organochlorine DDT GCMS 34653 2001 .001
Deethylatrazine Degradate Triazine Atrazine GCMS 04040 2001 .003
Deisopropylatrazine Degradate Triazine Atrazine, Cyanazine, Simazine HPLCMS 04038 9060 .044
Diazinon Insecticide Organothiophosphate – GCMS 39572 2001 .003
Dicamba Herbicide Benzoic acid – HPLCMS 38442 9060 .013
Didealkylatrazine Degradate Triazine Atrazine, Cyanazine, Simazine HPLCMS 04039 9060 .010
Dieldrin Insecticide Organochlorine – GCMS 39381 2001 .005
Dimethoate Insecticide Organothiophosphate – GCMS 82662 9002 .001
Dinoseb Herbicide Nitrophenol – HPLCMS 49301 9060 .012
Disulfoton Insecticide Organothiophosphate – GCMS 82677 2001 .011
Disulfoton sulfone Degradate Organothiophosphate Disulfoton GCMS 61640 9002 .003
Disulfoton sulfoxide Degradate Organothiophosphate Disulfoton GCMS 61641 9002 .001
Diuron Herbicide Phenylurea – HPLCMS 49300 9060 .015
Endosulfan sulfate Degradate Organochlorine alpha-Endosulfan, beta-Endosulfan GCMS 61590 9002 .002
EPTC Herbicide Thiocarbamate – GCMS 82668 2001 .001
Ethalfluralin Herbicide Dinitroaniline – GCMS 82663 2001 .005
Fenamiphos sulfoxide Degradate Organophosphate Fenamiphos GCMS 61646 9002 .000
Fluometuron Herbicide Phenylurea – HPLCMS 38811 9060 .031
gamma-HCH Insecticide Organochlorine – GCMS 39341 2001 0.002
Hexazinone Herbicide Triazinone – GCMS 04025 9002 .002
Imidacloprid Insecticide Chloro-Nicotinyl – HPLCMS 61695 9060 .007
Linuron Herbicide Phenylurea – HPLCMS 38478 9060 .014
Malathion Insecticide Organothiophosphate – GCMS 39532 2001 .014
MCPA Herbicide Chlorophenoxy acid – HPLCMS 38482 9060 .016
MCPB Herbicide Chlorophenoxy acid – HPLCMS 38487 9060 .015
Metalaxyl Fungicide Benzenoid – GCMS 61596 9002 .002
Methomyl Insecticide Carbamate – HPLCMS 49296 9060 .004
Methyl-parathion Insecticide Organothiophosphate – GCMS 82667 2001 .003
Metolachlor Herbicide Chloroacetanilide – GCMS 39415 2001 .006
Metribuzin Herbicide Triazinone – GCMS 82630 2001 .003
Metsulfuron-methyl Herbicide Sulfonylurea – HPLCMS 61697 9060 .025
Myclobutanil Fungicide Triazole – GCMS 61599 9002 .001
Nicosulfuron Herbicide Sulfonylurea – HPLCMS 50364 9060 .013
Norflurazon Herbicide Pyridazinone – HPLCMS 49293 9060 .016
Oryzalin Herbicide Dinitroaniline – HPLCMS 49292 9060 .018
Oxyfluorfen Herbicide Diphenyl ether – GCMS 61600 9002 .002
Pendimethalin Herbicide Dinitroaniline – GCMS 82683 2001 .005
Phosmet Insecticide Organothiophosphate – GCMS 61601 9002 .001
Picloram Herbicide Pyridine – HPLCMS 49291 9060 .020
Prometon Herbicide Triazine – GCMS 04037 2001 .007
Propargite Acaricide Sulfite ester – GCMS 82685 2001 .011
cis-Propiconazole Fungicide Triazole – GCMS 79846 9002 .001
trans-Propiconazole Fungicide Triazole – GCMS 79847 9002 .001
Simazine Herbicide Triazine – GCMS 04035 2001 .006
Sulfometuron-methyl Herbicide Sulfonylurea – HPLCMS 50337 9060 .009
Tebuthiuron Herbicide Thiadiazole – GCMS 82670 2001 .008
Terbacil Herbicide Uracil – GCMS 82665 2001 .017
Trifluralin Herbicide Dinitroaniline – GCMS 82661 2001 .005
Pesticides not detected
2,4-DB Herbicide Chlorophenoxy acid – HPLCMS 38746 9060 0.016
2,5-Dichloroaniline Degradate Aniline Chloramben GCMS 61614 9002 .009
2,6-Diethylaniline Degradate Aniline Alachlor GCMS 82660 2001 .003
2-[(2-Ethyl-6-methylphenyl)amino]-1-propanol Degradate Aniline, aliphatic alcohol Metolachlor GCMS 61615 9002 .058
2-Amino-N-isopropylbenzamide Degradate Amide Bentazon GCMS 61617 9002 .001
2-Chloro-2,6-diethylacetanilide Degradate Chloroacetanilide Alachlor GCMS 61618 9002 .002
2-Ethyl-6-methylaniline Degradate Aniline Metolachlor GCMS 61620 9002 .002
3-(4-chlorophenyl)-1-methyl urea Degradate Phenylurea Monuron, Neburon, Linuron, Diuron HPLCMS 61692 9060 .024
3,5-Dichloroaniline Degradate Aniline Iprodione GCMS 61627 9002 .002
3-Hydroxycarbofuran Degradate Carbamate Carbofuran HPLCMS 49308 9060 .006
3-Ketocarbofuran Degradate Carbamate Carbofuran HPLCMS 50295 9060 1.500
3-Phenoxybenzyl alcohol Degradate Diphenyl ether Permethrin GCMS 61629 9002 .013
3-Trifluoromethyl-aniline Degradate Aniline Fluometuron GCMS 61630 9002 0.002
4-(Hydroxymethyl)pendimethalin Degradate Dinitroaniline Pendimethalin GCMS 61665 9002 .046
4-Chloro-2-methylphenol Degradate Phenol MCPA, MCPB GCMS 61633 9002 .001
4-Chlorobenzylmethyl sulfone Degradate Sulfone Thiobencarb GCMS 61634 9002 .008
Acifluorfen Herbicide Diphenyl ether – HPLCMS 49315 9060 .007
Aldicarb Insecticide Carbamate – HPLCMS 49312 9060 .040
Aldicarb sulfone Degradate Sulfone Aldicarb HPLCMS 49313 9060 .020
Aldicarb sulfoxide Degradate Sulfoxide Aldicarb HPLCMS 49314 9060 .008
Azinphos-methyl oxon Degradate Organothiophosphate Azinphos-methyl GCMS 61635 9002 .001
Bendiocarb Insecticide Carbamate – HPLCMS 50299 9060 .025
Benfluralin Herbicide Dinitroaniline – GCMS 82673 2001 .005
Benomyl Fungicide Benzimidazole – HPLCMS 50300 9060 .004
Bensulfuron-methyl Herbicide Sulfonylurea – HPLCMS 61693 9060 .016
Butylate Herbicide Thiocarbamate – GCMS 04028 2001 .002
Carbofuran Insecticide Benzimidazole – HPLCMS 49309 9060 .006
Chloramben methyl ester Herbicide Chlorophenoxy acid – HPLCMS 61188 9060 .018
Chlorimuron ethyl Herbicide Sulfonylurea – HPLCMS 50306 9060 .010
Chlorothalonil Fungicide Chloronitrile – HPLCMS 49306 9060 .035
Chlorpyrifos oxon Degradate Organophosphate Chlorpyrifos GCMS 61636 9002 .010
Cycloate Herbicide Thiocarbamate – GCMS 04031 9002 .002
Cyfluthrin Insecticide Pyrethroid – GCMS 61585 9002 .001
lambda-Cyhalothrin Insecticide Pyrethroid – GCMS 61595 9002 .001
Cypermethrin Insecticide Pyrethroid – GCMS 61586 9002 .001
Dacthal Herbicide Alkyl Phthalate – GCMS 82682 2001 .002
Dacthal monoacid Degradate Alkyl Phthalate Dacthal HPLCMS 49304 9060 .012
Dichlorprop Herbicide Chlorophenoxy acid – HPLCMS 49302 9060 .014
Dichlorvos Insecticide, Fumigant, Degradate Organophosphate Naled GCMS 38775 9002 .003
Dicrotophos Insecticide Organophosphate – GCMS 38454 9002 .017
(E)-Dimethomorph Fungicide Morpholine – GCMS 79844 9002 .002
(Z)-Dimethomorph Fungicide Morpholine – GCMS 79845 9002 .003
Diphenamid Herbicide Amide – HPLCMS 04033 9060 .026
alpha-Endosulfan Insecticide Organochlorine – GCMS 34362 9002 .001
beta-Endosulfan Insecticide Organochlorine – GCMS 34357 9002 .004
Endosulfan ether Degradate Organochlorine alpha-Endosulfan, beta-Endosulfan GCMS 61642 9002 .002
Ethion Insecticide Organothiophosphate – GCMS 82346 9002 .001
Ethion monoxon Degradate Organophosphorus Ethion GCMS 61644 9002 .007
Ethoprop Insecticide Organothiophosphate – GCMS 82672 2001 .002
Fenamiphos Nematocide Organophosphorus – GCMS 61591 9002 .015
Fenamiphos sulfone Degradate Organophosphorus Fenamiphos GCMS 61645 9002 .001
Fenthion Insecticide Organothiophosphate – GCMS 38801 9002 .005
Fenthion sulfoxide Degradate Organothiophosphate Fenthion GCMS 61647 9002 .002
Fenuron Herbicide Phenylurea – HPLCMS 49297 9060 .032
Flumetralin Plant Growth Regulator Dinitroaniline – GCMS 61592 9002 0.001
Flumetsulam Herbicide Sulfonamide – HPLCMS 61694 9060 .011
Fonofos Insecticide Organophosphorus – GCMS 04095 2001 .001
Fonofos oxygen analog Degradate Organophosphorus Fonofos GCMS 61649 9002 .001
alpha-HCH Insecticide, Degradate Organochlorine gamma-HCH GCMS 34253 2001 .002
Imazaquin Herbicide Imidazolinone – HPLCMS 50356 9060 .016
Imazethapyr Herbicide Imidazolinone – HPLCMS 50407 9060 .017
Iprodione Fungicide Dicarboximide – GCMS 61593 9002 .746
Isofenphos Insecticide Organothiophosphate – GCMS 61594 9002 .001
Malaoxon Degradate Organothiophosphate Malathion GCMS 61652 9002 .001
Methidathion Insecticide Organothiophosphate – GCMS 61598 9002 .001
Methiocarb Insecticide Carbamate – HPLCMS 38501 9060 .008
Methomyl oxime Degradate Oxime Methomyl HPLCMS 61696 9060 .011
cis-Methyl-3-(2,2-dichlorovinyl)-2,2-dimethyl-(1-cyclopropane)-carboxylate Degradate Aliphatic acid ester Cyfluthrin GCMS 79842 9002 .005
trans-Methyl-3-(2,2-dichlorovinyl)-2,2-dimethyl-(1-cyclopropane)-carboxylate Degradate Aliphatic acid ester Cyfluthrin GCMS 79843 9002 .008
Molinate Herbicide Thiocarbamate – GCMS 82671 2001 .001
Napropamide Herbicide Amide – GCMS 82684 2001 .003
Neburon Herbicide Phenylurea – HPLCMS 49294 9060 .012
O-Ethyl-O-methyl-S-propylphosphorothioate Degradate Organothiophosphate Ethoprophos GCMS 61660 9002 .003
Oxamyl Insecticide Carbamate – HPLCMS 38866 9060 .012
Oxamyl oxime Degradate Oxime Oxamyl HPLCMS 50410 9060 .013
Paraoxon-ethyl Insecticide, Degradate Organothiophosphate Parathion GCMS 61663 9002 .002
Paraoxon-methyl Degradate Organothiophosphate Methyl-parathion GCMS 61664 9002 .010
Parathion Insecticide Organothiophosphate – GCMS 39542 2001 .003
Pebulate Herbicide Thiocarbamate – GCMS 82669 2001 .001
cis-Permethrin Insecticide Pyrethroid – GCMS 82687 2001 .003
Phorate Insecticide Organothiophosphate – GCMS 82664 2001 .006
Phorate oxon Degradate Organothiophosphate Phorate GCMS 61666 9002 .008
Phosmet oxon Degradate Organothiophosphate Phosmet GCMS 61668 9002 .009
Profenofos Insecticide Organothiophosphate – GCMS 61603 9002 .001
Prometryn Herbicide Triazine – GCMS 04036 9002 .002
Pronamide Herbicide Amide – GCMS 82676 2001 .002
Propachlor Herbicide Chloroacetanilide – GCMS 04024 2001 .005
Propanil Herbicide Anilide – GCMS 82679 2001 .005
Propetamphos Insecticide Organothiophosphate – GCMS 61604 9002 .001
Propham Herbicide Carbamate – HPLCMS 49236 9060 .010
Propiconazole Fungicide Triazole – HPLCMS 50471 9060 .021
Propoxur Insecticide Carbamate – HPLCMS 38538 9060 .008
Siduron Herbicide Phenylurea – HPLCMS 38548 9060 0.017
Sulfotepp Insecticide Organothiophosphate – GCMS 61605 9002 .001
Sulprofos Insecticide Organothiophosphate – GCMS 38716 9002 .002
TCPSA ethyl ester Degradate Sulfonic acid ester Triallate GCMS 61670 9002 .020
Tebupirimfos Insecticide Organothiophosphate – GCMS 61602 9002 .002
Tebupirimfos oxygen analogue Degradate Organothiophosphate Tebupirimfos GCMS 61669 9002 .002
Tefluthrin Insecticide Pyrethroid – GCMS 61606 9002 .001
Tefluthrin metabolite [R 119364] Degradate Pyrethroid Tefluthrin GCMS 61671 9002 .003
Tefluthrin metabolite [R 152912] Degradate Pyrethroid Tefluthrin GCMS 61672 9002 .003
Temephos Insecticide Organothiophosphate – GCMS 61607 9002 .036
Terbufos Insecticide Organothiophosphate – GCMS 82675 2001 .009
Terbufos oxygen analogue sulfone Degradate Organothiophosphate Terbufos GCMS 61674 9002 .018
Terbuthylazine Herbicide Triazine – GCMS 04022 9002 .005
Thiobencarb Herbicide Thiocarbamate – GCMS 82681 2001 .002
Triallate Herbicide Thiocarbamate – GCMS 82678 2001 .001
Tribenuron-methyl Herbicide Sulfonylurea – HPLCMS 61159 9060 .009
Tribuphos Defoliant Organothiophosphate – GCMS 61610 9002 .001
Triclopyr Herbicide Pyridine – HPLCMS 49235 9060 .022

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