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. 2025 May 21;7:1579952. doi: 10.3389/ftox.2025.1579952

TABLE 3.

GLY and AMPA concentrations detected in biological and environmental samples from South American and European countries.

Type of sample Results Detection methods Country Authors DOI
Human urine (27 female/25 male from Chaco lived in a small rural village) Only 10 samples (19.2%) showed quantifiable values (median: 0.30 µmol/mol creatinine; range: (0.12–0.91) µmol/mol creatinine) Liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) Argentina Bressan et al. (2021) https://doi.org/10.1016/j.jchromb.2021.122616
Human urine (15 subjects occupationally and 20 environmentally exposed to pesticides) Urine of non-occupationally exposed population: AMPA: median 0.27 ng/mg creatinine, GLY median 0.10 ng/mg creatinine
Urine from occupationally exposed population. AMPA: median 0.38 ng/mg creatinine, GLY median 0.08 ng/mg creatinine
Gas chromatography coupled to tandem mass spectrometry (MS/MS) Argentina Filippi et al. (2024) https://doi.org/10.1016/j.envadv.2023.100474
Human urine (90 farmers) 12% of the farmers presented GLY levels High-performance liquid chromatography (HPLC-FL) Brazil de Melo et al. (2020) https://doi.org/10.31005/iajmh.v3i0.124
Human urine (519 participants lived in agricultural communities) GLY was detected in 98.3% of participants
Geometric mean (95% IC) 0.92(0.83,1.01)
Isotope-dilution mass spectrometry Ecuador Chronister et al. (2023) https://doi.org/10.1289/EHP11383
Human urine (French general population) GLY quantifable in 99.8% of urine samples with a mean of 1.19 ng/mL+/−0.84 after adjustment to body mass index (BMI) ELISA France Grau et al. (2022) https://doi.org/10.1007/s11356-021-18110-0
Human urine (non-farm and farm families) GLY (max) 3.21 µg/L, AMPA (max) 7.24 µg/L GC–MS/MS Ireland Connolly et al. (2022) https://doi.org/10.3390/tóxicos10110690
Human urine (Young adults (18–19 years old) The median concentration was below 0.10 μg/L and a maximum concentration being 3.39 μg/L (density adjusted) LC-MS/MS Sweden Faniband et al. (2021) https://doi.org/10.1016/j.ijheh.2020.113657
Surface waters, raw water and drinking water Surface waters:
GLY: range LOQ (0.25 µg/L) – 0.50 µg/L, AMPA: range LOQ (0.67 µg/L – 0.70 µg/L)
In samples of raw water and drinking water the results for GLY and AMPA could not be quantified
Enzyme-Linked Immunosorbent Assay (ELISA) Uruguay Frontera et al. (2024) https://doi.org/10.26461/27.01
Water GLY was detected in 66% of surface water samples (0.20–167.40 μg/L), in 15.8% of the groundwater samples (1.30–2.00 μg/L) and in the harvested precipitation sample (0.20 μg/L) UHPLC MS/MS Argentina Lutri et al. (2020) https://doi.org/10.1016/j.scitotenv.2019.134557
Soil The average concentrations of GLY and AMPA in soil were 2,299 ± 476 mg/kg and 4,204 ± 2,258 mg/kg, respectively Ultra-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS) Argentina Primost et al. (2017) https://doi.org/10.1016/j.envpol.2017.06.006
Rainwater Maximum detected concentrations were 6.10 μg/L and 5.80 μg/L for GLY and AMPA, respectively LC–MS/MS Belgium Tang et al. (2015) https://doi.org/10.1016/j.scitotenv.2015.02.040