PPT-Metal-Containing Pesticides

Metals Essential Zinc Copper Iron Chromium Phosphorus Selenium Cobalt All metals are toxic in excess Neutral or detrimental Tin Bismuth Boron Barium Antimony Arsenic Thallium Lead. Metal Metal L129 Phenom Tee Ball 090814 Baden Sports Inc Metal Composite L134 Axe Elite 011111 Baden Sports Inc Metal Composite L134B Elite 111813 Baden Sports Inc Metal Composite L134A Elite 010913 Baden Sports Inc Metal Metal L135A Phenom 010913 B Please note the term base metal This means exactly what it says If you try to blacken metals that are oxidized greasy and spotted with etch resist you will experience disappointing results Blackening is carried out for a variety of reasons Modellers Matthew T. Martin, . Ph.D.. National Center for Computational Toxicology . Office of Research & Development. U.S. Environmental Protection Agency. RTP, . NC 27711. Email: . martin.matt@epa.gov. Text pages 52-57. 2. What are pests?. Pest:. . An organism that is harmful or inconvenient to people. . . 3. What are pests?. Examples: . dandelions. , rodents,. . insects. , . micro-organisms. 4. Dr. Cora J. Young. Assistant Professor. Department of Chemistry. Memorial University. What are Pesticides?. Imadocloprid. DDT. Atrazine. Glyphosate . Trifluralin. Diverse chemical structures. Used to manage. – how we control their use (or don’t). and why that matters to human and ecosystem health. Warren Bell BA MD CM CCFP FCFP. Past Founding President. Canadian Association of Physicians for the Environment. Kelly Hammond. History. As early as 1000 BC mankind has attempted to control pests. The Greek poet Homer cited sulfur as an early insecticide.. The Chinese used arsenic as an insecticide by 900 AD.. By the mid-nineteenth century there began to be success using chemicals such as pyrethrum and Bordeaux mixture (copper sulfate, lime and water.). The pores can be sealed (closed-cell foam), or they can form an interconnected network (open-cell foam).. The defining characteristic of metal foams is a very high porosity: typically 75-95% of the volume consists of void spaces.. 28 State House Station. Augusta ME 04333-0028. (207)287-2731. pesticides@maine.gov. What are . p. esticides?. Bleaches, . Lysol. , pine oil . Weed & Feed, . Roundup. Rat & mouse baits . Plant disease controls. Pesticides Pesticides Any chemical, natural or human-made , that is designed to kill another organism. Definitions Using that broad definition There are hundreds of thousands of pesticides in the natural environment. Pesticides and the Environment Kelly Hammond History As early as 1000 BC mankind has attempted to control pests. The Greek poet Homer cited sulfur as an early insecticide. The Chinese used arsenic as an insecticide by 900 AD. Pesticides. M.Sc. II semester Zoology. PESTICIDES. Historical Background. A pesticide is any substance intended for preventing, destroying, repelling or mitigating any pest. . They are usually define according to the pest they are intended for: insecticides, fungicides, . chemical, . natural. or . human-made. , that is designed to kill another . organism.. Definitions. . Using that broad . definition. There . are . hundreds . of thousands of pesticides in the natural environment. . Requirements of casting alloys:. 1. . They must not tarnish or corrode in the mouth. ;. . 2. They must be sufficiently strong for intended purpose. .. . 3. They must be compatible ( nontoxic ,not allergic.