Monitoring Pesticide Residues in Surface and Ground Water in Hungary: Surveys in 1990–2015
Table 1
Target compounds, their chromatographic retention time, and characteristic molecule ions for MS identification and concentrations found in surface water samples.
Pesticide active ingredient/metabolite
Retention times (min)
Quantitation ion (other ions) ()
Concentration range as diffuse contaminant (ng/L)
Comment
GC analysis
Neutral and basic substances
Propachlor
10.075
120 (176, 212)
—
Trifluralin
10.817
306 (264, 290)
800–10000
Soil contaminant as well
Phorate
11.038
121 (75, 231, 260)
—
Simazine
11.490
201 (173, 186)
—
Atrazine
11.651
200 (215, 216)
500–15000
>15600 ng/L (in 2002) as point source; soil contaminant as well
Lindane
11.888
181 (183, 217)
5–15
Soil contaminant
Terbuthylazine
11.910
214 (173, 229)
—
Diazinon
12.183
179 + 137 (152)
10–900
Soil contaminant as well
Tefluthrin
12.301
177 (197, 141)
—
Soil contaminant
Pirimicarb
12.690
166 (239, 72)
—
DDMS
12.925
235 (237, 199)
—
Dimethenamid
13.000
154 (230, 203)
traces
Dimethachlor
13.007
134 (197, 210)
—
Metribuzin
13.070
198 (57, 199)
100–1000
Acetochlor
13.139
224 (223, 174)
20–6300
46000 ng/L (in 2002) and 3900000 ng/L (in 2008) as point source; soil contaminant as well
Heptachlor
13.305
272 (274, 100)
—
Alachlor
13.345
188 + 238 (160)
1–10
Prometryn
13.364
241 (242, 184)
100–10000
>6100 ng/L (in 2003)
Dimethirimol
11.420
166 (209)
traces
>100 ng/L in a single instance (in 2010)
Propisochlor
13.451
224, 162 (223)
10–100
Terbutryn
13.624
185 (242, 226)
10–1000
>83800 ng/L (in 2003)
Ethofumesate
13.761
207 + 161 (286)
10–30
Malathion
13.871
173 (127, 125)
—
Aldrin-R
13.990
293 (66, 293, 65)
—
Metolachlor
14.049
162 (238, 240)
1–56000
Soil contaminant as well
Chlorpyrifos
14.070
314 (316, 258)
—
Soil contaminant
Triadimenol
14.900
168 (128, 71)
traces
Penconazole
14.700
248 (159, 251)
—
Pendimethalin
14.710
252 (282, 253)
—
Heptachlor Epoxide
14.775
353 (355, 351)
—
Endosulfan
15.490
195 (339, 160)
—
Hexaconazole
15.700
214 (111, 97)
—
DDE
15.865
318 (208, 282)
<3
Soil contaminant
DDD
16.907
235 (237, 207)
—
Soil contaminant
Dieldrin
16.059
79 (79, 81, 277)
—
Endrin
16.617
279 (243, 245)
—
DDT
18.059
235 (237, 165)
—
Soil contaminant
Iprodione
19.508
314 (315, 316)
—
Acidic substances
MCP tBDMS
7.524
199 (201, 125)
—
DCP tBDMS
7.957
219 (221, 93)
—
Mecoprop tBDMS
9.208
225 (271, 227)
10–15
MCPA tBDMS
9.453
257 + 229 (211)
5–300
Dichlorprop tBDMS
9.584
245 (247, 291)
3–200
2,4-D tBDMS
9.882
251 + 233 (279, 277, 281)
10–1000
MCPB tBDMS
10.226
281 (325, 253)
10–20
2,4,5-T tBDMS
10.526
285 + 311 (267, 75)
—
2,4,5-TP tBDMS
10.648
201 + 199 (202)
—
2,4-DB tBDMS
10.910
219 (201)
—
HPLC analysis
Thiamethoxam
2.42
292 (211, 246)
4–30
10–41 μg/L measured from temporary shallow water bodies
Clothianidin
3.38
250 (132, 168, 169)
17–40
ELISA
Glyphosate
—
—
500–1000
Chlorophenoxy acids and the corresponding phenol metabolites have been determined by a parallel chromatographic method as t-butyldimethylsilyl esters or ethers (tBDMS).
