Atrazine is one of the two most heavily used pesticides in the United States today, with over 35 million kilograms of active ingredient applied annually, primarily for the control of broadleaf weeds in corn and sorghum (Gianessi, 1987). Data from the U.S. Environmental Protection Agency (EPA) show that farming without atrazine would cost corn growers $28 per acre in lost yield and/or increased weed control costs. Atrazine is useful in the farming fields or to in the crops to kill the weeds. An estimated 7 million people were exposed to atrazine in their drinking water between 1998 and 2003.The highest levels of contamination are in the Midwest where it is widely used on corn fields. Similar research in sorghum trials in Kansas and Nebraska from 1986-1995 showed an 11.3 bushel/acre advantage in that crop. Application flexibility: atrazine can be applied prior to, during or after planting the crop, or after crop emergence, so it fits a wide variety of cropping systems. Additional information on atrazine’s registration review, reregistration, and food tolerance reassessment is available in the atrazine dockets: Community water systems (CWS) are required, under the Safe Drinking Water Act, to monitor for atrazine. This monitoring program is required by the 2003 Atrazine Interim Reregistration Eligibility Decision (IRED) and the 2004 Atrazine Memorandum of Agreement (MOA). The Atrazine Ecological Exposure Monitoring Program assesses atrazine levels in streams in watersheds that are exposed to atrazine runoff from corn and sorghum production (small streams, high atrazine use areas, and vulnerable soils). Because the runoff washes the chemical into streams, rivers, and groundwater, it’s one of the most common pollutants found in American waters. Find the triazine ecological risk assessments, View the Atrazine Regulatory Update Memo (October 2019), regarding the Community Effects Level of Concern (CE-LOC) for regulating aquatic plants, Atrazine Interim Reregistration Eligibility Decision (IRED), Presentation of the Atrazine Reevaluation Plan, Draft Framework and Case Studies on Atrazine, Human Incidents, and the Agricultural Health Study: Incorporation of Epidemiology and Human Incident Data into Human Health Risk Assessment, Re-Evaluation of Human Health Effects of Atrazine: Review of Experimental Animal and In Vitro Studies and Drinking Water Monitoring Frequency, Re-Evaluation of Human Health Effects of Atrazine: Review of Non-Cancer Effects and Drinking Water Monitoring Frequency, Re-Evaluation of Human Health Effects of Atrazine: Review of Non-Cancer Effects, Drinking Water Monitoring Frequency, and Cancer Epidemiology, Problem Formulation for Reassessment of Ecological Risks from Use of Atrazine, Re-Evaluation of Human Health Effects of Atrazine:  Review of Non-Cancer Effects, Drinking Water Monitoring Frequency, and Cancer Epidemiology, Re-Evaluation of Human Health Effects of Atrazine:  Review of Non-Cancer Effects and Drinking Water Monitoring Frequency, Re-Evaluation of Human Health Effects of Atrazine:  Review of Experimental Animal and In Vitro Studies and Drinking Water Monitoring Frequency, Draft Framework and Case Studies on Atrazine, Human Incidents, and the Agricultural Health Study:  Incorporation of Epidemiology and Human Incident Data into Human Health Risk Assessment, Ecological Significance of Atrazine Effects on Primary Producers in Surface Water Streams in the Corn and Sorghum Growing Region of the United States, Interpretation of the Ecological Significance of Atrazine Stream-Water Concentrations Using a Statistically-Designed Monitoring Program, Potential for Atrazine to Affect Amphibian Gonadal Development, Characterization of Epidemiology Data Related to Prostate Cancer and Exposure to Atrazine, Potential Developmental Effects of Atrazine on Amphibians, Issues Pertaining to Atrazine Cancer Risk Assessment, Rate reduction for residential turf applications, Reduce application rate for granular atrazine products applied to residential turf from 2.2 pounds active ingredient per acre (lb ai/A) to 2.0 lb ai/A, Reduce application rate for atrazine spray applications to residential turf from 2.0 lb ai/A to 1.0 lb ai/A, Additional personal protective equipment (PPE), Combination of single- and double-layer clothing with gloves, PF10 respirators, and engineering controls, Add mandatory spray drift reduction language, Add herbicide resistance management language. As a pre-emergent, it prevents germination of weedy broadleaf and cool-season grass seeds, and as a post-emergent it kills actively growing annual cool-season weeds. Farmers simply can’t meet the increasing demand for corn without controlling the grass and broadleaf weeds that compete with crops for moisture, sunlight and nutrients. Southern Ag Atrazine Weed Killer is formulated specifically for St Augustine and Centipede grasses only and should not be used on Bermuda grass. EPA now restricts how atrazine can be used and applied. Atrazine is in a group of man-made systemicherbicides called triazines. Atrazine is an herbicide widely used for control of broadleaf and grassy weeds. From: Algal Ecology, 1996. Since the program's inception, up to 33 watersheds have been monitored for atrazine in corn-, sorghum- and sugarcane-producing areas. Farmers use atrazine to control weeds on well over half of the country’s corn acreage, about two-thirds of sorghum acreage and 90 percent of its sugar cane. In September 2020, EPA released the triazine (atrazine, propazine and simazine) interim decisions. Het remt de fotosynthese. The registrant has addressed exceedances by implementing label education, stewardship, and outreach programs in these watersheds, and is attempting to quantify the impact and effectiveness of the mitigation activities through a grower survey. Atrazine is one of the most used herbicides in the USA. As part of registration review and decades of study, EPA is considering amendments to the 2004 Memorandum of Agreement that would end the requirement for continued drinking water monitoring under the AMP. If you suspect that you or anyone else who may have overdosed of Atrazine, please go to the emergency department of the closest hospital or nursing home.Bring a medicine box, container, or label with you to help doctors with necessary … Estimates of the frequency and extent of atrazine use in corn by leading states are shown in Table 34.2. Fits soil-saving conservation tillage systems. Do not use more than prescribed dose. It is also being used near to the high-ways and railroads for the similar determinations. Trizane herbicides like atrazine help slice the need for tillage and the conversion of land to crop production. Atrazine is een onkruidverdelgingsmiddel dat behoort tot de groep van chloortriazines, samen met onder andere simazine. This reduces soil erosion from U.S. cropland by 56 to 85 million tons per year, according to an analysis by Paul Mitchell, a University of … Atrazine is a widely used herbicide that can be applied before and after planting to control broadleaf and grassy weeds. The information is being presented to enable the public, the press and decision-makers at all levels of government to make decisions based on sound science and in accordance with the principles of the Data Quality Act. Learning what weeds does atrazine kill is an important step to making sure you keep your lawn weed-free, while also not killing the grass in the prcess. Atrazine is used in such large quantities and so frequently that it has consistently gotten … EPA completes interim registration review decisions to impose interim risk mitigation measures necessary to protect human health and the environment, while the Agency conducts other longer-term assessments, such as the endangered species assessment. Under the AMP, CWSs are selected for intensive monitoring based on a history of atrazine use and a screen of EPA's data collected under the Safe Drinking Water Act. In this document EPA is finalizing the following new, stronger protections to reduce exposure to atrazine. Atrazine is a frequently used herbicide used on corn, soybeans, sorghum, sugar cane, pineapple, pine trees, other crops and as a non-specific herbicide on industrial sites. Atrazine. View Atrazine Ecological Exposure Monitoring Program Data and Results, View Atrazine Data Collected under the Safe Drinking Water Act. Atrazine is usually applied once during the growing season (USDA NASS, 2000). Lakes and Reservoirs Do not mix or load atrazine within 50 feet of any natural or impounded lake or reservoir. All documents related to this round of registration review for atrazine can be found in the registration review docket: EPA-HQ-OPP-2013-0266. Atrazine’s history dates back more than 50 years. In addition, for the past 15 years, the atrazine technical registrants have been required to monitor for atrazine in surface drinking water per the 2003 Atrazine Interim Reregistration Eligibility Decision (IRED) and the 2004 Memorandum of Agreement (MOA) between EPA and the atrazine technical registrants. Fawcett, Twenty Years of University Corn Yield Data: With and Without Atrazine, Proceedings North Central Weed Science Society, 2008. This information does not substitute the label. Atrazine is a member of the triazine chemical class, which includes simazine and propazine. In the cumulative assessment, EPA reviewed all available scientific data, including published toxicity and epidemiology literature. Atrazine is one of the most widely used and most controversial herbicides in the world. (. Atrazine is used on crops such as sugarcane, corn, pineapples, sorghum, and macadamia nuts, and on evergreen tree farms and for evergreen forest regrowth. For more than half a century, atrazine has been a mainstay of corn, sorghum and sugar cane farmers for its proven control of a broad range of destructive weeds. Effective, broad spectrum weed control leads to high crop yields. It is of particular concern to water supplies due to its popularity, relatively long half life (60 to 100 days) and because it is not strongly absorbed by soil (Koc = ~100). Meeting materials and summaries are available on the FIFRA Scientific Advisory Panel website or in www.regulations.gov (search by the Docket number). If a watershed shows atrazine concentrations above this level of concern in any two years of monitoring, atrazine registrants must initiate watershed-based mitigation activities in concert with state or local watershed programs to reduce atrazine exposure. There is a reason that atrazine is one of the leading herbicides; unlike many other herbicides, atrazine has a wide spectrum of uses, applications, and utility. The agency estimates the total negative impact on corn, sorghum and sugar cane growers in the U.S. would exceed $2 billion if atrazine were not available. In 2016, EPA released the draft ecological risk assessments for atrazine, simazine and propazine, which evaluate risks to animals and plants, including amphibians, birds, mammals, fish, reptiles, aquatic invertebrates, aquatic plant communities, and terrestrial plants. These mitigation activities can include, for example, education, stewardship and outreach programs for growers and distributors. It is the most common chemical contamination in the ground water of the United States. Over the years, the Agency has consulted with the FIFRA Scientific Advisory Panel (SAP) on a variety of atrazine topics. Atrazine is chemically related to two other herbicides, simazine and propazine, which together are called "triazines." Atrazine is one of the most widely used herbicides in the U.S., and is found in 94% of U.S drinking water tested by the USDA — more often than any other pesticide. Atrazine is a chemical compound widely used as an herbicide in commercial crops and home lawn care. Atrazine is a herbicide or weed-killer, that is mainly used on corn. Describe the results of that review. The monitoring program conducted by the atrazine technical registrants, called the Atrazine Monitoring Program (AMP), monitors approximately 150 surface water CWS, primarily in the Midwest, to determine whether concentrations of atrazine and its chemical degradates are present at a level that could potentially pose a risk to public health. It has also been used on highway and railroad rights-of-way. Research has proven the positive effect atrazine has on farm production: Among dozens of herbicides evaluated by scientists, atrazine is the only product which provides all of the following key agronomic features: Atrazine is a popular weed control tool because it is economical to use, extremely effective against a spectrum of weeds, and very safe to the crop. It's one of the few St. Augustine will tolerate. Estimates in the 2018 draft human health risk, as well as measured concentrations for community water systems, are well below the drinking water level of comparison (DWLOC) of 580 parts per billion. Contact Us to ask a question, provide feedback, or report a problem. Atrazine is used both as a pre-emergent and post-emergent herbicide to control weeds. It is used to safely control annual broadleaf and grass weeds in cornfields, sugarcane fields, and turfs. There is a reason that atrazine is one of the leading herbicides; unlike many other herbicides, atrazine has a wide spectrum of uses, applications, and utility. CWSs included in the AMP are monitored on a weekly basis during peak atrazine use season and biweekly during the rest of the year. Atrazine is an herbicide used to control weeds. The liquid form is highly regulated by the EPA, and only trained people are allowed to disperse it. Also, you may apply atrazine to an entire terraced field with tile outlets if you use no-till and high crop residue management practices (i.e., remove little or no crop residue). The chemical class, triazines, recently underwent registration review, our periodic re-evaluation program for existing pesticides. The totality of available atrazine monitoring data collected through the AMP is robust and comprehensive, which enabled the EPA to refine and characterize its most recent (2018) human health risk assessment. EPA will continue to require monitoring for atrazine under the Safe Drinking Water Act. Production experts estimate yield advantage in sugar cane ranges from 12 to 50 percent. Atrazine’s effectiveness and safety is well documented throughout the United States and around the world, with nearly 7,000 scientific studies conducted on the product. Atrazine is a controlled-use herbicide that is a water-soluble white powder that is odorless. Atrazine History. The Agency's oversight of atrazine is dynamic and includes periodic re-evaluation through the registration review process. Of 13 weed control programs rated for net return in a 1997 University of Illinois study, the top three all contained atrazine. Atrazine was being reviewed by the EPA because of concerns that the herbicide may be Carcinogenic. Atrazine is used primarily on corn, but also on other crops. As you explore AtrazineFacts.com you will find timely, factual information which allows farmers, journalists, bloggers... and others, to stay up to date with atrazine litigation and related coverage. Atrazine 4L, Atrazine 90DF, Aatrex 4L, Lumax EZ, Acuron, Breakfree ATZ Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement is implied. View Atrazine Data Collected under the Safe Drinking Water Act. children who crawl and play on lawns treated with atrazine or simazine and, workers who mix, load, and apply atrazine. Read the propazine human health risk assessment. As of 2015, nine watersheds in five states (Iowa, Texas, Missouri, Louisiana and Nebraska), As of 2013, all sugarcane sites were decommissioned from the. It’s used so much that it has become the most common pesticide in our drinking water. The SAP is composed of independent scientists who advise on technically challenging scientific assessment issues. In the U.S., the product is used mainly to kill weeds. It is also used on some grassy weeds.1,2It was first registered for use in 1958.1 What are some products that contain atrazine? For ecological risks, each of the triazines (atrazine, propazine, and simazine) was assessed separately. In Australia, atrazine is used to control weeds in summer crops such as sorghum, maize and sugarcane, and it is also widely used in Western Australia for control of weeds in lupin and Triazine Tolerant (TT) canola. In addition to the cumulative human health risk assessment, the Agency also released atrazine, simazine and propazine human health risk assessments. View Atrazine Monitoring Program Data and Results. Important in management of weed resistance. It is sprayed on row crops such as corn, sorghum and sugarcane, and in some areas is used on residential lawns. With proper use and application, it can be an effective control for annual and … We carry several weed killers you can buy that contain Atrazine to help you control a wide range of broadleaf and grassy weeds. It also been used on highway and railroad rights-of-way. What The New Yorker didn’t tell you – the real facts behind the story, Syngenta stands by the safety of atrazine, SUMMARY FROM SYNGENTA’S SCIENCE OVERVIEW SUBMITTED TO EPA DOCKET, In combined data from 236 university corn field trials from 1986-2005, atrazine treatments showed an average of 5.7 bushels more per acre than alternative herbicide treatments. It is used on golf courses, Christmas tree farms, and in residential landscaping. An official website of the United States government. Read the atrazine human health risk assessment. The triazines have a common mechanism of toxicity, and therefore EPA has conducted both individual chemical and cumulative human health risk assessments. It is used in primarily in agriculture, with the greatest use on corn, sorghum, and sugarcane. Atrazine completed its first round of registration review in 2020, which is the Agency’s periodic re-evaluation program for existing, registered pesticides. It was first registered by the United States Department of Agriculture (USDA) as an herbicide in 1958. Related terms: Biochar; Contaminant; Adsorption; Crustacean; Groundwater; Herbicide That’s not even the worst part. However, powder forms are available for residential use. The Agency has consulted with the FIFRA Scientific Advisory Panel on 12 occasions on various topics regarding the evaluation of atrazine data and key aspects of its risk assessments since 2000, all of which are listed in the table below. EPA accepted comments on the proposal to discontinue the AMP during the comment period on the Proposed Interim Decision on Atrazine. EPA’s assessment found no risks of concern when evaluating all dietary exposure sources including drinking water. Atrazine 4L is a restricted use post-emergent and pre-emergent herbicide formulated by Drexel Chemical Company. In 2008, atrazine was used on nearly 70 percent of Illinois corn acreage, making it the second the most popular herbicide for the state’s corn farmers. It is sprayed on row crops such as corn, sorghum and sugarcane, and in some areas is used on residential lawns. It is used in primarily in agriculture, with the greatest use on corn, sorghum, and sugarcane. Atrazine Uses. Inexpensive and readily available, atrazine is found in many commercial herbicide brands for both agricultural and home use. Atrazine is used in all corn-growing regions of the United States. Farmers, lawn care workers and gardeners use atrazine both to prevent broadleaf weeds from establishing before they emerge from the ground and to kill weeds that have emerged. Research has documented the benefits of atrazine to the bottom line for growers: For the latest information on atrazine uses visit Atrazine.com. ALWAYS FOLLOW THE LABEL! Atrazine is among the most widely used of chemical herbicides. Farmers value atrazine for its effective use against some of the toughest weeds in corn — like lambsquarters, morningglory, nightshade, pigweed, cocklebur, velvetleaf and foxtails – that make it the most popular herbicide in pre-mix combination products. The active ingredient, Atrazine will kill weeds as seeds or kill emerged weeds through the root system. ATRAZINE USE Atrazine is an agricultural herbicide that is widely used by farmers to control broadleaf weeds and grasses that interfere with the growth of corn, … In July 2018 as part of EPA’s registration review process, the Agency released the cumulative human health risk assessment for the triazines. Taking more medication will not improve your symptoms; rather they may cause poisoning or serious side-effects. Specifically, atrazine is a chlorotriazine herbicide.1It is used for broadleaf weedsboth before and after they sprout. Atrazine is an herbicide widely used for control of broadleaf and grassy weeds. If at any time EPA determines there are urgent human or environmental risks from atrazine exposure that require prompt attention, we will take appropriate regulatory action, regardless of the status of the registration review process. In particular: Upon publication of the Federal Register notice, the atrazine Interim Registration Decision will be available in docket # EPA-HQ-OPP-2013-0266. United States Environmental Protection Agency, In September 2020, EPA released the Interim Registration Review Decisions for atrazine, propazine, and simazine, Atrazine ecological exposure monitoring program, Triazine cumulative human health risk assessment, FIFRA Scientific Advisory Panel Meetings on Atrazine, The Preliminary Work Plan (June 2013) described our process for reevaluating atrazine, recent actions, planned human health and ecological risk assessments, and the expected review timeline, The Final Work Plan (December 2013) addressed public comments received on the Preliminary Work Plan and finalized our anticipated schedule for registration review, Atrazine Ecological Risk Assessment (June 2016) evaluated potential risks to animals and plants, Letter to National Corn Growers Association on registration review of atrazine (August 2019), Atrazine Regulatory Update (October 2019), Atrazine Proposed Interim Registration Decision (December 2019), Atrazine Interim Registration Decision (September 2020), 2006 Atrazine Interim Reregistration Eligibility Decision (RED) (PDF), Memorandum of Agreement with registrants (2004) (PDF), View Atrazine Monitoring Program Data and Results, 2006 Atrazine Interim Reregistration Eligibility Decision (PDF). To a lesser extent, it is used on residential lawns and golf courses, particularly in the Southeast United States. Atrazine is a popular choice for no-till farming methods that have both economic and environmental benefits. Read the simazine human health risk assessment. A watershed can be decommissioned from the monitoring program if the 60-day running average falls below the CE-LOC for two consecutive years. What is atrazine used for? The Agency did not receive significant comments illustrating the continued need for monitoring through this program, and therefore intends to proceed with discontinuing this requirement. The herbicide is broad-spectrum and is effective against broadleaf weeds and grasses. Atrazine.us is a website dedicated to presenting relevant scientific and regulatory information on this important product. Farmers use atrazine to control weeds on well over half of the country’s corn acreage, about two-thirds of sorghum acreage and 90 percent of its sugar cane. Atrazine is a member of the triazine chemical class, which includes simazine and propazine. We do carry a full line of selective herbicides of which many are labeled for use on Bermuda. Atrazine was first registered for use in 1959 and EPA recently recommended its re-registration after a comprehensive, 10-year safety review. 1 - 4 of 4 results Read the cumulative human health risk assessment. Atrazine saves your soil. It is part of the triazine group of herbicides, the most widely used group of herbicides. To a lesser extent, it is used on residential lawns and golf courses, particularly in the Southeast United States. EPA currently regulates on an aquatic plant Concentration Equivalent Level of Concern (CE-LOC) of 10 ppb as a 60-day average concentration, which ensures that atrazine levels will not cause significant changes in aquatic plant community structure, function and productivity. This website is focused primarily on atrazine-specific legal matters. It has also been used to keep weeds from growing on both highway and railroad rights-of-way. Using farm machinery to cultivate weeds from fields adds to farmers’ labor, fuel and equipment costs and increases the potential for soil erosion. As part of the decision, EPA finalized mitigation measures to protect human health and mitigate potential ecological risks. Each registered pesticide must be re-reviewed every 15 years, so EPA will complete the next round of registration review for atrazine by 2035. The average number of herbicide applications on the typical US corn crop is 1.5 (USDA ERS, 1997a). The assessment identifies potential risks to: In the December 2019 proposed interim registration review decisions, EPA is proposing mitigation that would address these risks of concern. Ecological risks land to crop production company based in Switzerland Data Collected under the Safe Drinking Act! 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