The environmental protection agency has established a maximum contaminant level mcl in drinking water of three parts per billion of atrazine. Atrazine continues to contaminate surface water and drinking water in the united states iii n of the 153 drinking water systems. This resulted in an mcl for atrazine of 3 ppb, which has a 5000fold safety factor. Despite its frequent presence as a wellwater contaminant, the u. Attachment 1 of this active ingredient data package also contains figures illustrating the atrazine usage data for 2003, 2006, 2009, and 2012. The table below summarizes the total number of atrazine applications that were reported in nassau and suffolk counties in. Manufactured for helena chemical company 225 schilling boulevard, suite 300 collierville, tennessee 38017 ad 070710 epa reg. Have person sip a glass of water if able to swallow. For atrazine, however, a mammary tumor in a twogeneration rat study triggered an additional safety factor. Index for atrazine pc code 080803 pesticides us epa. Environmental protection agency office of water 4601 epa811f95003 dc october 1 995 epa national primary drinking water regulations atrazine this is a factsheet about a chemical that may be found in some public or private drinking water supplies.
Environmental protection agency epa reregistered atrazine in 2006 based on the evidence of nearly 6,000 studies and more than 80,000 public comments. The epa believes that water containing atrazine at or below this level is acceptable for drinking every day over the course of ones lifetime. Atrazine continues to contaminate surface water and drinking water in the united states iii n of the 153 drinking water systems monitored,100 systems had peak maximum. Atrazine 215 1912249 benzaanthracene 228 56553 benzobfluoranthene 252 205823 benzokfluoranthene 252 207089 benzoapyrene 252 50328 benzog,h,iperylene 276 191242 bromacil 260 314409 butachlor 311 23184669 butylate 317 2008415 butylbenzylphthalate 312 85687 carboxin. This is the concentration of atrazine that the epa considers safe to consume in drinking water over an average 70year human life span.
Other pertinent literature is also presented, but is described in less detail. Water research center atrazine in drinking water and. Environmental protection agency concluded it was unlikely to be a carcinogenic hazard to humans. The table below summarizes the total number of atrazine applications that were reported in nassau and suffolk counties in 2003, 2006, 2009, and 2012. On january 31, 2003 epa issued an interim reregistration eligibility decision ired for the herbicide atrazine. Environmental protection agency great lakes national program office g17j 77 west jackson boulevard chicago, il 60604 epa 905r01010. It found that 40 out of 40 watersheds in the midwestern and southern united states contained atrazine, with. Epa has concluded that oatrazine is not likely to cause cancer in humans. Atrazines primary manufacturer is syngenta and it is one of the most widely used herbicides in us and australian agriculture as of 2001, atrazine was the most commonly. Hiyield atrazine weed killer in the event or a medical or chemical emergency contact chemtel, inc. Atrazine 215 1912249 benzaanthracene 228 56553 benzobfluoranthene 252 205823 benzokfluoranthene 252 207089.
Pdf is shown below for 2 current labeled application rates for corn use 2 lb a. Epa, pesticide product label, drexel atrazine 4l, 09292005. For the general population, drinking water is an infrequent source of atrazine exposure, but estimates of seasonal intakes from drinking water in a small number of communities have exceeded the recommended limits. However, some degradates, including dea, dia, and dact have been shown to be more toxic than atrazine to mammals and birds. Atrazine 215 1912249 benzaanthracene 228 56553 benzobfluoranthene 252 20582. The assessment will inform epas decision on whether to allow atrazine to be used for the next 15 years. Epa relies on industrybacked studies to assess health. Environmental protection agency scientific advisory panels reevaluation of atrazine, the national corn growers association ncga reemphasizes the safety and importance of the herbicide in a new commentary. Atrazine alters sexual hormone levels, and the effects of that, especially at the embryonic stage, can be lifethreatening or have lifelong impacts. Information quality guidelines atrazine pdf 17 pp, 257 k contact us to ask a question, provide feedback, or report a problem. It is used to prevent pre and postemergence broadleaf weeds in crops such as maize corn and sugarcane and on turf, such as golf courses and residential lawns. Als environmental does not sell chemicals, but offers analytical lab testing to determine the presence of various elements and chemical compounds.
Atrazine can travel seep or leach through soil and can enter groundwater which may be used as drinking water. Epa considers atrazine to be structurally similar and of equal toxicity to simazine and propazine. Information quality guidelines atrazine pdf 10 pp, 47 k contact us to ask. Atrazine kills the weed by inhibiting photosynthesis. Finalization of atrazine ired, and completion of tolerance reassessment and reregistration eligibility process april 6, 2006 revised atrazine ired october 31, 2003. Atrazine is a member of the triazine chemical class, which includes simazine and propazine. The national resources defense council nrdc published a report pdf on atrazine in 2009, in which it analyzed data compiled by the epas ecological watershed monitoring program and atrazine monitoring program from 2003 through 2006. Hold eyelid open and rinse slowly and gently with water for 1520 minutes. Atrazine united states environmental protection agency us epa. Atrazine contamination in indiana atrazine contamination is widespread in indiana.
It is primarily used in agriculture with the greatest use on corn, sorghum, and sugarcane. The epa responded with a press release stating it would begin a reevaluation of atrazine. The epas monitoring program for atrazine was poorly designed and is not apt to find the most troubling results, which makes the statistics even more alarming. You may need a pdf reader to view some of the files on this page. Epa documents say atrazine is not likely to be carcinogenic.
Synergistic effects of atrazine with other pesticides. Epa announced in a 2004 federal register notice that chemicals used as pesticides would not be reassessed by the iris program. Ewg analysis of the epas atrazine monitoring program data, displayed on a monthly basis, and water utility 2017. Therefore, potential risks to terrestrial animals were considered for these degradates. Comments on proposed maximum allowable dosage levels for.
Users are advised not to apply atrazine to sand and loamy sand soils where the water table groundwater is close to the surface and where these soils are very permeable, i. Epa, pesticide product label, drexel atrazine 4l, 09. Department of health and human services, public health service. Atrazine ingredients used in pesticide products us epa. Water utility tests miss harmful atrazine levels adamscedar hill tiffin mattoon source. Epa national primary drinking water regulations atrazine this is a factsheet about a chemical that may be found in some public or private drinking water supplies. Pdf the herbicide atrazine is being used for weed control in crops and also in nonagricultural areas. Atrazine is a concern in oregons willamette valley streams. Atrazine active ingredient data package april 1, 2015. Ncga opposes epas complicity in this continued attack on atrazine.
Drexel atrazine 4l epa registration number 197 j311 atrazine reregistration label revision submission submission dated september 21, 200s oface of. States, atrazine is regulated by the epa and was last reregistered in 2006. May 11, 2016 regarding the epa s study of atrazine, dr. All atsdr toxicological profile pdf files are electronic conversions from paper copy or other electronic ascii text files. Mar 21, 2016 see epas about pdf page to learn more. Triazine herbicides as atrazine in water by quantitative immunoassay, part of test methods for evaluating solid waste, physicalchemical methods pdf 20 pp, 2 k, february 2007. Drexel atrazine 4l epa registration number 197 j311 atrazine reregistration label revision submission submission dated september 21, 200s oface of prmntion. This limit is set by the epa, and it applies to all public and private water systems serving more than. Atrazine is a widely used herbicide that can be applied before and after planting to control broadleaf and grassy weeds. Hormonedisrupting weed killer taints drinking water for millions of americans ewg. Epa iris 2003 does not have an online file for diazinon. Finalization of atrazine ired, and completion of tolerance reassessment and reregistration eligibility process april 6, 2006 revised atrazine ired october 31, 2003 atrazine ired january 2003.
Environmental protection agency office of water 4601 epa811f95003 dc october 1 995. Environmental protection agency epa was in the process of considering the renewal of the syngenta corporations atrazines swiss manufacturer, and one of the worlds largest chemical companies license to continue the use of atrazine in the united states, atrazines largest market. Atrazine is mainly absorbed through the roots of weeds and then transported to the actively growing tips and leaves. How the epa is ignoring atrazine contamination in surface. This product is a restricted use herbicide due to ground and surface water concerns. It may cause health problems if found in amounts greater than the health. The january 2003 atrazine interim reregistration eligibility decision ired 323 pp, 1. Us epa pesticides combined pdf of atrazine decision documents. The strategy hdoh used to prepare this report includes. Atrazine 4l page 1 of 10 restricted use pesticide ground and surface water concerns for retail sale to and use only by certified applicators or persons under their direct supervision and only for those uses covered by the certified applicators certification. The legal limit for atrazine in drinking water is 3 ppb. Atrazine can be applied by spraying onto the effected area either via a ground. Refined ecological risk assessment for atrazine center for.
This entry in the iris database is preserved at the request of epa. Scientific studies have linked atrazine to a higher risk of prostate cancer, and hormonal, cardiovascular, lung and kidney problems in humans. Still poisoning the well atrazine continues to contaminate. For four days, academic, industry and government experts. The atsdr toxicological profile succinctly characterizes the toxicologic and adverse health effects information for the hazardous substance described here. To quantitatively evaluate placentallactational transfer and fetalneonatal tissue dosimetry of atr and its major metabolites, physiologically based pharmacokinetic models were developed for rat dams, fetuses and neonates. Deethylatrazine is a metabolite and environmental degradation product of atrazine. Potential risks of atrazine use to federally threatened. Warren porter, a renowned toxicologist at the university of wisconsinmadison, told cmd. Decision documents for atrazine combined pdf document consists of the following.
Background information for atrazine and deethylatrazine atrazine is a triazine herbicide an herbicide containing the striazine ring that inhibits photosynthesis in plants. The epa s monitoring program for atrazine was poorly designed and is not apt to find the most troubling results, which makes the statistics even more alarming. Atrazine is one of the most wellexamined pesticides in the marketplace, she said, noting that there are nearly 6,000 studies in epa files on the human health and environmental effect of atrazine. Report to the 27th legislature, state of hawaii, 20.
Epa levels of concern for chronic risk are exceeded by as much as 22, 198. New epa report will lead to virtual us ban on atrazine. It is used to prevent preemergence broadleaf weeds in crops such as maize corn and sugarcane and on turf, such as golf courses and residential lawns. This entry in the iris database is preserved at the request of epa program and regional of. Atrazine may alter the sexual development of frogs at environmental levels gammon et al.
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