Protein Information

Name Koc
Synonyms IGF II mRNA binding protein 3; IMP3; IGF2BP3; IMP 3; KH domain containing protein overexpressed in cancer; KOC 1; KOC1; Putative RNA binding protein KOC…

Compound Information

Name atrazine
CAS

Reference List

PubMed Abstract RScore(About this table)
11802601 Fava L, Bottoni P, Crobe A, Caracciolo AB, Funari E: Assessment of leaching potential of aldicarb and its metabolites using laboratory studies. Pest Manag Sci. 2001 Dec;57(12):1135-41.

Aldicarb and its metabolites showed Koc values (6-31) which were lower than that of atrazine (55), indicating that they are very mobile in soil.
31(0,1,1,1) Details
14552015 Chefetz B: Sorption of phenanthrene and atrazine by plant cuticular fractions. Environ Toxicol Chem. 2003 Oct;22(10):2492-8.

The bulk and dewaxed cuticles exhibited carbon-normalized distribution coefficients (Koc) for phenanthrene and atrazine in the range of that reported for soil humic substances, although both samples were rich in aliphatic structures.
12(0,0,2,2) Details
17258293 Blanchoud H, Moreau-Guigon E, Farrugia F, Chevreuil M, Mouchel JM: Contribution by urban and agricultural pesticide uses to water contamination at the scale of the Marne watershed. Sci Total Environ. 2007 Apr 1;375(1-3):168-79. Epub 2007 Jan 25.

Transfer coefficients from agricultural uses were derived from the calibrated value previously obtained from a detailed budget established for atrazine, taking into account the specific adsorption capacity (Koc) and half-life time of each substance used.
31(0,1,1,1) Details
19874020 Ahmad R, Rahman A: Sorption characteristics of atrazine and imazethapyr in soils of new zealand: importance of independently determined sorption data. J Agric Food Chem. 2009 Nov 25;57(22):10866-75.

The variation of OC soil sorption coefficients, Koc, was also larger for atrazine (mean Koc of 126.9 L kg (-1)) than for imazethapyr (mean Koc of 13.2 L kg (-1)).
6(0,0,1,1) Details
10736766 Farenhorst A, Bowman BT: Sorption of atrazine and metolachlor by earthworm surface castings and soil. J Environ Sci Health B. 2000 Mar;35(2):157-73.

The amount of atrazine or metolachlor sorbed per unit organic carbon (Koc values) was significantly greater for corn-castings compared with other castings, or soil, suggesting that the composition of organic matter in castings is also an important factor in determining the retention of herbicides in soils.
6(0,0,1,1) Details
12146633 Nemeth-Konda L, Fuleky G, Morovjan G, Csokan P: Sorption behaviour of acetochlor, atrazine, carbendazim, diazinon, imidacloprid and isoproturon on Hungarian agricultural soil. Chemosphere. 2002 Aug;48(5):545-52.

The adsorption constant related soil organic carbon content (Koc) calculated from Freundlich equation were 314 for acetochlor, 133 for atrazine, 2805 for carbendazim, 1589 for diazinon, 210 for imidacloprid and 174 for isoproturon.
6(0,0,1,1) Details
17390786 Swarcewicz M, Skorska E: Influence of an adjuvant on the distribution of herbicides in a sediment/water system. Commun Agric Appl Biol Sci. 2006;71(2 Pt A):147-54.

Atpolan 80 EC also caused an increase of Kd and Koc values of atrazine.
6(0,0,1,1) Details
18393436 Kookana RS, Janik LJ, Forouzangohar M, Forrester ST: Prediction of atrazine sorption coefficients in soils using mid-infrared spectroscopy and partial least-squares analysis. J Agric Food Chem. 2008 May 14;56(9):3208-13. Epub 2008 Apr 5.

PLS calibrations, developed for the prediction of Kd from the MIR spectra and reference Kd data, were compared with predictions from Koc-based indirect estimation using SOC content.
3(0,0,0,3) Details
12146170 Ramwell CT, Heather AI, Shepherd AJ: Herbicide loss following application to a roadside. Pest Manag Sci. 2002 Jul;58(7):695-701.

Samples were analysed for glyphosate, atrazine, diuron, oxadiazon and oryzalin, and peak concentrations were 650, 2210, 1810, 390 and 70 micrograms litre-1 respectively.
Herbicide concentrations all followed a similar pattern of rapid decline throughout the first rain event following application, with the majority of loss occurring within the first 10 mm of accumulated rainfall, but compounds of high solubility and low Koc produced the highest peak concentrations.
2(0,0,0,2) Details
15481825 Coquet Y, Ribiere C, Vachier P: Pesticide adsorption in the vadose zone: a case study on Eocene and Quaternary materials in Northern France. Pest Manag Sci. 2004 Oct;60(10):992-1000.

We present a set of adsorption coefficients measured on various Eocene and Quaternary materials sampled from the vadose zone of a catchment in Northern France for three herbicides, atrazine, isoproturon and metamitron.
Neglecting the adsorption properties of the vadose zone and relying exclusively on Koc values to predict mobility may bias regional or local risk assessment of groundwater contamination by pesticides.
1(0,0,0,1) Details
12433180 Mata-Sandoval JC, Karns J, Torrents A: Influence of rhamnolipids and triton X-100 on the desorption of pesticides from soils. Environ Sci Technol. 2002 Nov 1;36(21):4669-75.

The determined organic carbon partition coefficients, Koc values, indicate that, on a carbon normalized basis, sorbed Rh-mix is a much better sorbent of pesticides than TX-100 or soil organic matter.
A rhamnolipid biosurfactant mixture produced by P. aeruginosa UG2 and the surfactant Triton X-100 were tested for their effectiveness of enhancing the desorption of trifluralin, atrazine, and coumaphos from soils.
1(0,0,0,1) Details
11057581 Laabs V, Amelung W, Pinto A, Altstaedt A, Zech W: Leaching and degradation of corn and soybean pesticides in an Oxisol of the Brazilian Cerrados. Chemosphere. 2000 Nov;41(9):1441-9.

This order of the pesticides was also achieved by ranking them according to their effective sorption coefficient Ke, which is the ratio of Koc to field-dissipation half-life.
In a field experiment near Cuiaba, Mato Grosso, atrazine, chlorpyrifos, lambda-cyhalothrin, endosulfane alpha, metolachlor, monocrotofos, simazine, and trifluraline were applied onto a Typic Haplustox.
1(0,0,0,1) Details
11482672 Graber ER, Dror I, Bercovich FC, Rosner M: Enhanced transport of pesticides in a field trial with treated sewage sludge. Chemosphere. 2001 Aug;44(4):805-11.

After a single 50 mm irrigation event, the mean centers of mass (COM) in the control field were at 15.6, 14.9, and 17 cm for bromacil, atrazine and terbuthylazine, respectively; in the sludge-amended field, mean COMs were at 28.8, 31.2, and 34.1 cm, respectively.
After 500 mm of irrigation in the control field, the COM depth distribution of the three pesticides was inversely correlated with octanol-water (Kow) distribution coefficients and soil sorption coefficients (Koc), and positively correlated with aqueous solubilities.
1(0,0,0,1) Details
12552681 Zhong HM, Xu F, Luo LM, Zhang H, Cong LY: [Study on adsorption of atrazine by soil leaching column chromatography] . Se Pu. 1999 Nov;17(6):522-4.

The adsorption coefficient Kf is 842.6 mL/kg and the normalized organic carbon adsorption coefficient log Koc is 1.832.
1(0,0,0,1) Details
15382878 Geisler G, Hellweg S, Liechti S, Hungerbuhler K: Variability assessment of groundwater exposure to pesticides and its consideration in life-cycle assessment. Environ Sci Technol. 2004 Aug 15;38(16):4457-64.

The application of these approaches is illustrated by a case study on atrazine.
Substance properties (Koc and DT50,soil) contributed the mostto variability, followed by site, weather, season of application, crop, and macropore flow.
1(0,0,0,1) Details
11586774 Steen RJ, van der Vaart J, Hiep M, Van Hattum B, Cofino WP, Brinkman UA: Gross fluxes and estuarine behaviour of pesticides in the Scheldt estuary (1995-1997). Environ Pollut. 2001;115(1):65-79.

As part of the Fluxes of Agrochemicals into the Marine Environment (FAME) project, the gross fluxes of selected pesticides (i.e. the herbicides atrazine, simazine, alachlor and metolachlor, the atrazine degradation product desethylatrazine, the insecticide dichlorvos and the antifouling agent Irgarol 1051) transported by the river Scheldt and the Canal Ghent-Terneuzen were determined from March 1995 through February 1997.
The mixing plots of the organophosphorus insecticides dichlorvos and diazinon revealed clear evidence of estuarine loss processes which agrees with their low DT50 values reported for water/sediment systems, their relatively high Henry's law constants and, for diazinon, its relatively high Koc value.
1(0,0,0,1) Details
12688688 Runes HB, Jenkins JJ, Moore JA, Bottomley PJ, Wilson BD: Treatment of atrazine in nursery irrigation runoff by a constructed wetland. Water Res. 2003 Feb;37(3):539-50.

Organic carbon adsorption coefficients (Koc) were determined from batch equilibrium sorption isotherms with wetland sediment, and they decreased in the order of HA > DIA > atrazine > DEA.
1(0,0,0,1) Details
18351088 Shechter M, Chefetz B: Insights into the sorption properties of cutin and cutan biopolymers. Environ Sci Technol. 2008 Feb 15;42(4):1165-71.

The sorption affinity values of the studied compounds followed the order: phenanthrene > atrazine > chlorotoluron > carbamazepine.
Phenanthrene exhibited reversible sorption behavior and a high ratio of organic-carbon-normalized distribution coefficient (Koc) to carbon-normalized octanol-water partitioning coefficients (Kowc) with both biopolymers.
1(0,0,0,1) Details
18621412 Poissant L, Beauvais C, Lafrance P, Deblois C: Pesticides in fluvial wetlands catchments under intensive agricultural activities. Sci Total Environ. 2008 Oct 1;404(1):182-95. Epub 2008 Jul 14.


This wetland ecosystem was active in the degradation of agricultural pesticides (e.g., atrazine).
0(0,0,0,0) Details