It has a role as a proherbicide, a proinsecticide, a profungicide and a pronematicide. Metam sodium compounds, weed, killing, liquid appears as a yellow to light yellowgreen solution with an odor of amine and sulfur that varies in intensity. As originally packaged, metam sodium solutions are stable under normal storage conditions for up to 2 years. It is one of the most widely used pesticides in the united states, with approximately 60 million pounds used in 2001. Journal of environmental quality abstract effects of metam sodium fumigation on soil microbial activity and community structure view my binders. Metam sodium is the third most commonly used agricultural pesticide by weight in the u. Acute metam sodium poisoning caused by occupational exposure. A uganda ministry of internal affairs analytical laboratory conducted toxicology testing using triple liquid chromatography mass spectrometry in the recently calibrated triple quadrupole liquid chromatograph mass spectrometer 2 for traces of metam sodium or methyl isothiocyanate a metam sodium degradation product in the blood of nine. Epa, pesticide product label, metam sodium, 12211998. Metam c2h5ns2 cid 3001858 structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety. Pdf short term effects of soil disinfection with metham.
Metam sodium and metam potassium are nonselective soil fumigants with fungicidal, herbicidal, insecticidal, and nematicidal properties. Conn, research agronomist, usda, agricultural research service materials and methods specific details regarding plot management and ap. Effect of soil temperature, injection depth, and metam sodium. Brown jr salinity laboratory, riverside, ca 92507, usa. Soil analyses for 1,3dichloropropene 1,3 dcp, sodium nmethyldithiocarbamate metamsodium, and their degradation products near fort hall, idaho, september 1999 through march 2000 by d. End use products are formulated as 1842% aqueous solutions sold under the trade names of metam clr, vapam, and sectagon. Metam sodium and metam potassium fumigant safe handling guide. Soil analyses for 1,3dichloropropene 1,3dcp, sodium n. Metam sodiumpotassium safety information for handlers pdf 65 pp, 454 k. Metam sodium and metam potassium fumigant safe handling guide safety information for handlers developed by pesticide registrants and approved by epa. May 01, 2017 metam sodium ms is widely used as a soil preplant fumigant as methyl bromide is phased out of agriculture. Carling, professor of horticulture and plant pathology j. Persistent respiratory health effects after a metam sodium.
On october 25, 2016, media reports alerted the uganda ministry of health to an outbreak of 80 cases of vomiting, syncope, and acute diarrhea among workers at a flower farm in central uganda. Parliman waterresources investigations report 014052 prepared in cooperation with idaho soil conservation commission boise, idaho 2001. Metam sodium and metam potassium metam sodium is one of the most widely used agricultural pesticides in the united states and is presently registered on food and feed crops. Hmeta510slam universal vapam material safety data sheet page 4 of 5 halflife of 23 minutes. Identification of the substancepreparation and the companyundertaking product name metam clr 42% synonyms sodium nmethyldithiocarbamate use of the substancepreparation biocides, agrochemical soil disinfectant epa reg no 4572816 companyundertaking identification taminco inc. Metam sodium is an agricultural general use pesticide used primarily as a broad spectrum preplant soil fumigant to control weeds, weed seeds, fungi, nematodes, and soil insects. Metamsodium is an agricultural general use pesticide used primarily as a broad spectrum preplant soil fumigant to control weeds, weed seeds, fungi, nematodes, and soil insects. Pesticide properties for metam sodium, including approvals, environmental fate, ecotoxicity and human health issues. Thiocarbamates and dithiocarbamates are incompatible with acids, peroxides, and acid halides. You may need a pdf reader to view some of the files on this page. Sodium dithiocarbamate also known as metam sodium or ms is added to inhibit the growth of microorganisms especially leuconostoc mesenteroides which is responsible for forming polysaccharides. Metam sodium can also decompose to carbon disulfide and monomethylamine both highly flammable if contacted with a strong acid. However, the information about how fumigation with ms affects the soil microbial community is still limited. Free carbon disulphide shall be absent notes 1 and 5.
Pesticide properties for metamsodium, including approvals, environmental fate, ecotoxicity and human health issues. The product shall consist of a homogenous aqueous solution containing metamsodium as the active ingredient. Papiernikc, joe nunezd adepartment of environmental sciences, university of california, riverside, ca 92521, usa busdaars, soil physics and pesticides research unit, george e. The latter group includes a somewhat higher percentage of. Currently, most metam sodium, metam potassium and mitc products are not restricted use but will be as a result of the reregistration decision. Productos con metam sodio, pagina 1 informacion y precios. Metam sodium is an organosulfur compound formally a dithiocarbamate, which is used as a soil fumigant, pesticide, herbicide, and fungicide. L 7858 actwet 361947 a soil fumigant for the control of certain soil fungi, nematodes and germinating weed seeds in agricultural and horticultural soils, seedbeds and planting media as indicated. Conversion of metam sodium and emission of fumigant from soil columns wei zhenga,b, scott r. Metam sodium, metam potassium, and mitc do not require food tolerances. Methamsodium and other alternatives to mb by marten barel. The internet classics archive metamorphoses by ovid.
Flammable gases are generated by the combination of thiocarbamates and dithiocarbamates with aldehydes, nitrides, and hydrides. Weed control in rice with methamsodium article pdf available in communications in agricultural and applied biological sciences 7 pt a. Table 5 compares demographics and reported odor detection among cases with persistent respiratory health effects after the metam sodium spill vs eases eliminated from this series either due to a lack of persistent respiratory complaints or an inability to confirm exposure n167. Effects of fumigation with metamsodium on soil microbial. A wide variety of metham sodium options are available to you, such as granular. Products containing the active ingredients metam sodium ms and metam. Testing of a new disinfectant process for poultry viruses. Effect of soil temperature, injection depth, and metam. Effect of soil temperature, injection depth, and metam sodium rate on the management of verticillium wilt of potato j. It shall be reasonable free from suspended matgter and sediment. Metam sodium is an organic sodium salt and an organosulfur insecticide.
It is a broadspectrum soil fumigant that can be used to control plant parasitic nematodes, weeds, germinating weed seeds, and soilborne plant pathogenic fungi a. This widely used pesticide caused californias worst. Metam sodium, upon decomposition, produces highly toxic byproducts. The major product is mitc methyl isothiocyanate, which was lost by volatilization leaving a total of 8. Metam sodium and dasomet as herbicides for use by vegetable growers d. Nov 18, 2017 the process for extracting sugarcane juice saccharum officinarum represents the point of greatest contamination in sugarcane mills. Metam sodium ms in water and cane juice at different. With all his harness soon the god was sped, his flying hat was fastned on his head, wings on his heels were hung, and in his hand he holds the vertue of the snaky wand. Short term effects of soil disinfection with metham sodium and organic alternatives on nematode communities article pdf available in community ecology 122. Journal of environmental quality abstract effects of metam.
Metam sodiummetam potassium use in methyl bromide alternative tactics for strawberries and mulched vegetables jack a. Metam sodium is the most widely used soil fumigant in the u. This widely used pesticide caused californias worst inland environmental disaster chris clarke he is a veteran environmental journalist and natural history writer. The liquid air his moving pinions wound, and, in the moment, shoot him on the ground. Conversion of metam sodium and emission of fumigant from soil. Norton, manager, ir4 methyl bromide alternatives programs introduction. Acute metam sodium poisoning caused by occupational. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents.
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