Technical grade active ingredient tred tolerance reassessment eligibility decision uf uncertainty factor u. To incorpoiate the addition of a sonication step for the final sample extract. See active ingredients, product application, restrictions, and more. Only chemical names are included in this guide, but a list of trade names and more detailed. The atrazine surface water concentrations found in this sampling event at of the 8 26 sampling locations, ranged from 0. Adsorption hexazinone has a comparatively low adsorption capacity. Epa red book does not indicate whether the recommended criterion of 1 mgl is an acute or a chronic value. Labels for products containing hexazinone bear the signal word danger poison due its ability to cause serious and. The findings show that the levels of pesticide chemical residues measured by fda in the. A member of the triazine class herbicides, it is manufactured by dupont and sold under the trade name velpar. Titan hexazinone 750 sg herbicide is a water soluble granule formulation.
The hpv list is based on the 1990 inventory update rule. For a list of the chemicals, please see section ii, table 1. It has replaced other triazines on sites where woody as well. The chlorophenoxy herbicide 2,4,5,tp criterion is the same as originally published in the 1976 epa red book which predates the 1980 methodology and did not utilize the fish ingestion bcf approach. In the united states, hexazinone, a triazine herbicide, is thought to endanger the red legged california frog and its habitat epa. Federal register acephate, cacodylic acid, dicamba. Us environmental protection agency 1994 reregistration eligibility decision hexazinone, epa 738r94022. Safety data sheet hexazinone 2sl 1 section 1 chemical product and company identification product name. Toxicology and potential health risk of chemicals that may be. Fenitrothion, hexazinone, hymexazol, methoxyfenozide, pronamide, and trimedlure. Hexazinone food and agriculture organization of the united. Iron criteria and implementation for iowa surface waters. The green book, published in 1968, provided the first ambient water quality standards. Hexazinone is a slightly toxic compound in epa toxicity class i.
The agency has evaluated the dietary risk associated with hexazinone and has determined that. In 1994, the united states environmental protection agency usepa published the reregistration eligibility decision red for hexazinone, based on data in the above documents and that requested in the 1988 registration standard issued by the agency. The product is mixed with water and applied at recommended rates with either ground or aerial equipment dependent on use pattern. Online determination of hexazinone in water by solid. In germany 52% of wild bee species are included in the red list. Section 15 regulatory information fifra this chemical is a pesticide product registered by the environmental protection agency and is subject to certain labeling requirements under federal pesticide law. Information related to quality criteria for water red book. Hexazinone is a triazinedione herbicide registered for use on alfalfa, pasture and range grasses.
Principles of federal appropriations law, also known as the red book, is gaos multivolume treatise concerning federal fiscal law. Quality criteria for water july 1976 the red book author. Hexazinone has a very high solubility, a relatively low vapor pressure 1. Since the 1983 publication of the national research councils report risk assessment in the federal government. The chlorophenoxy herbicide 2,4d criterion is the same as originally published in the 1976 epa red book which predates the 1980 methodology and did not utilize the fish ingestion bcf approach. The red book nrc 1983 and later national research council riskassessment publications, including the silver book, have emphasized that the selection of defaults for risk assessment involves policy choices that are of a different kind from those involved in risk management. Starting list of substances going through the monitoringbased exercise. List of all registrants sent this data callin insert notice. A further report to the epa red book task force in 1990 nature conservation reserves in the eastern goldfields, western australia, n. Un1170, ethanol solution, 3 iii marine pollutant hexazinone use packing instruction p001 and lp01. Cycle 11 list includes six pesticides, including four herbicides. Pesticides wisconsin groundwater coordinating council report to.
Although there are no confidence intervals associated with these products, the ld50 values for the products 1421 and 2073 mgkg, respectively are greater than the ld50 value for hexazinone 1200 mgkg and therefore. Compliance with the tolerance levels specified in this paragraph is to be determined by measuring only the sum of hexazinone, 3cyclohexyl6. Also, there is no special applicator license require. Hexazinone c12h20n4o2 cid 39965 structure, chemical names, physical and chemical. Epa classified dimethoate as a possible human carcinogen. Section 304 a 1 of the clean water act cwa, passed in 1972, requires the epa to develop criteria for the protection of aquatic life as well as for human health. Surface water concentrations of atrazine at nine of 14 selected monitoring locations exhibited a downward trend and none of the detected concentrations exceeded.
Identified candidate pesticides and metabolites may be included on a list of. Using these criteria, these observed surface water. Hexazinone is a broadspectrum herbicide that can control. Henryhall recommended that the existing lake cronin nature reserve be extended to cover an area of 1,250. Physicochemical properties of pure hexazinone parameter values and conditions purity % method reference and technique if the reference gives more than one study number vapour pressure 3.
Hexazinone75% power pellet herbicide is an easy and effective way to control trees and brush on rangeland, pastures, and noncropland. Partially fill the spray tank with water and add the correct amount of the product for. Independent laboratory validation of a proposed environmental chemistry analytical method for the determination of hexazinone and metabolites in soil by gcnpd analysis and confirmation by lcmsms epa pc code. Red blood cell destruction causing abnormal decrease in number of. Failure to remove residues may result in damage to sensitive plants in subsequent treated areas. Determination of hexazinone in environmental samples by uv. A further report to the epa red book task force in 1990 nature conservation. The red book provides text discussion with reference to specific legal authorities to illustrate legal principles, their application, and exceptions.
The south florida water management district has collected surface water and sediment samples for analysis of over 80 pesticides since 1992. Appendix c includes the list of analytes tested for in. Adsorption of hexazinone to soil particles increases with increasing soil ph, organic content, and clay cation exchange capacity. Early federal efforts were the green book fwpca, 1968 and the red book usepa, 1976. Epa announced in a 2004 federal register notice that chemicals used as pesticides would not be reassessed by the iris program. Epa 1994a,c as well as the reassessment of hexazinone. Hexazinone is a nonselective herbicide from the triazine family.
Resistant weeds warning titan hexazinone 750 sg herbicide is a member of the triazines group of herbicides. Hexazinone is not expected to volatilize substantially from wetmoist surfaces. Reregistration eligibility decision red for hexazinone p. It exhibits some solubility in water but is highly soluble in most organic solvents except alkanes. Pesticides and pesticide degradates in groundwater used for. Reregistration eligibility decision red for hexazinone us epa.
This fact sheet summarizes the information in the red document for reregistration case 0266, hexazinone. Hexazinone is relatively mobile in coarse to mediumtextured forest soils under the influence of abundant moisture newton and cole, 1997, and its penetration deeper in soil facilitates control of perennials, several shrubs, and hardwoods minogue et al. Labels for products containing hexazinone bear the signal word danger poison due its ability to cause serious and irreversible eye irritation. Epa section 304a guidance epa and a predecessor agency have produced a series of scientific water quality criteria guidance documents. Use profile hexazinone is a herbicide used to control a broad spectrum of weeds including undesirable woody plants in alfalfa, rangeland and pasture. Ufl calculated with a constant k, while the red line corresponds to the. Thoroughly clean all traces of titan hexazinone 750 sg herbicide from application equipment immediately after use. Itis usedas anonselectiveherbicidein noncroplandareas and as aselectiveherbicidein reforestation practices. At certain concentrations, iron can also be toxic to aquatic life. Pesticide exposure and risk of aggressive prostate cancer among.
It lists receipt, appropriation, and other fund account symbols and titles assigned by the department of the treasury. Mar 31, 2021 the fast book is a supplement to volume i of the treasury financial manual. Hexazinone has a low potential for bioaccumulation based on its log k ow of 1. Epa pesticide fate database miscellaneous who documents us epa databases related to pesticide risk assessment 2. This entry in the iris database is preserved at the request of epa program and regional offices. Usda, and later epa, have assigned most pesticide chemicals an official common name. It may be used in combination with other herbicides such as bromacil and diuron. View the product label for tide hexazinone 75 wdg from tide international.
Hexazinone human health and ecological risk assessment final report prepared for. Pages using collapsible list with both background and textalign in titlestyle articles containing unverified chemical infoboxes. Substances on the pennsylvania hazardous substances list present at a. A also sponsored a contract effort that resulted in the blue book nasnae, 1973. Genfarm hexazinone 250 sl herbicide 8651045160804 page 1 of 12 company name. There is little to no regrowth and very little damage to herbaceous vegetation.
The agency has determined that hexazinone products, labeled and used as specified in this reregistration eligibility decision, will not pose unreasonable risks or adverse effects to humans or the environment. Quality criteria for water, 1976 red book pdf 533 pp, 16 mb. Hexazinone is a key herbicide used in the control of many broadleaf weeds that are deleterious to the survival and growth of red pine. Hexazinone is a triazine herbicide used for pre and post emergent control of many annual, biennial, and perennial weeds, as well as some woody plants. Epa pesticide fate database miscellaneous who documents us epa databases related to pesticide risk assessment 2 unverified data of unknown source lemna minor 7 day. Online determination of hexazinone in water by solid phase. In the case of hexazinone, only two products epa reg.
Human health risks are primarily from drinking water, therefore no organism. Toxicology and potential health risk of chemicals that may. Risks of hexazinone use to federally threatened california. Du pont and proserve use against natural area weeds. Environmental protection agency epa has assessed the. Since the iron criterion is associated with the implementation of the general criterion that applies to all waters of the state, to prevent discoloration or aesthetically objectionable conditions of the stream, and to. Oct 17, 2018 information related to quality criteria for water red book. The epa red book 1976 recommended a criterion of 1. Review of the environmental protection agencys draft iris. Tide hexazinone 75 wdg tide international greenbook. Green book and the epa in 1975 the red book that lake cronin and an adequate area around the lake should be made a class a reserve for the purpose of conservation of flora and fauna. For example, deq and epa were responsible for collecting environmental data, and.
Red reregistration eligibility decision rfd reference dose sera syracuse environmental research associates tep typical enduse product t. Therefore, the tolerances need to be reassessed to meet the fqpa standard. Red signed 092005 red pdf 37 pp, 360k aromatic solvents case 3020 red scheduled for 72006. Therefore, the agency concludes that products containing hexazinone for all uses are eligible for reregistration.
Technical memorandum evaluation of drinking water quality goals. Reregistration eligibility decision red hexazinone epa. South florida water management district ambient pesticide. Reregistration eligibility decision red fact sheet pdf. Hexazinone binds to the d1 quinone protein of the electron transport chain in photosystem ii to inhibit the photosynthesis. Hexazinone is an example of an atypical triazine herbicide used for control of. Epa has issued reds for acephate, cacodylic acid, ethoprop, hexazinone, methamidophos, noctyl bicycloheptene dicarboximide, phosmet, picloram, pyrethrum see pyrethrins red, and thiophanatemethyl, and treds for hexazinone and propazine, as noted in unit ii. You may need a pdf reader to view some of the files on this page. Rbc red blood cells red reregistration eligibility decision.
The degradation of hexazinone in the rat, alfalfa, and sugarcane was originally reported by holt 1981. Chapter 7 of the formaldehyde report outlined a roadmap to revision of future. Epa and health canada leading to an issue that could. Hexazinone is an example of an atypical triazine herbicide used for control of woody plants in reforestation areas and for selective weed control in sugarcane, pineapple, and alfalfa. When a pesticide is eligible for reregistration, epa announces this and explains why in a reregistration eligibility decision red document. A reregistration eligibility decision red for hexazinone was completed in september, 1994, prior to fqpa enactment. This same criterion value was also published in the 1986 epa gold book. Current labels also includedrainage areas, industrial sites, sewage disposal areas andairports. The list of those substances is established in commission. Trade names for products containing hexazinone are dpx 3674, pronone, and velpar. Hexazinone is registeredfor preemergent, postemergence, layby, directed spray andbasal soil applications. Hexazinone human health and ecological risk assessment.
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