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Laboratory Safety Manual
LABORATORY SAFETY MANUAL Environment, Health & Safety 1120 Estes Drive Extension CB# 1650 TABLE OF CONTENTS Section or Chapter Page Introduction i Emergency Telephone Numbers ii EHS – Scope of Service iii Condensed Laboratory Safety Information for New Research Personnel v Chapter 1 – Laboratory Safety at the University of North Carolina at Chapel Hill 1-1 Chapter 2 – Laboratory Safety Plan 2-1 Chapter 3 – General Safety Principles and Practices 3-1 Chapter 4 – Proper Storage of Chemicals in Laboratories 4-1 Chapter 5 – Protective Clothing and Equipment 5-1 Chapter 6 – Safe Handling of Chemicals 6-1 Chapter 7 – Highly Toxic Chemicals and Select Carcinogens 7-1 Chapter 8 – Reproductive Health 8-1 Chapter 9 – Controlled Substances 9-1 Chapter 10 – Fire Safety 10-1 Chapter 11 – Explosive and Reactive Chemical Hazards 11-1 Chapter 12 – Management of Laboratory Wastes 12-1 Chapter 13 – Safe Handling of Peroxidizable Compounds 13-1 Chapter 14 – Safe Handling of Laboratory Animals 14-1 Chapter 15 – Safe Handling of Biological Hazards 15-1 Chapter 16 – Biological Safety Cabinets 16-1 Chapter 17 – Laboratory Hoods 17-1 Chapter 18 – Safe Use of Nanomaterials 18-1 Revisions to Laboratory Safety Manual REV-1 Laboratory Safety Manual – the University of North Carolina at Chapel Hill INTRODUCTION This manual is a safety reference document for laboratory personnel at the University of North Carolina at Chapel Hill. The University’s Department of Environment, Health & Safety prepared this manual, followed by review and approval from both the University’s Laboratory and Chemical Safety Committee (LCSC) and the University Safety and Security Committee (USSC). -
Food, Food Chemistry and Gustatory Sense
Food, Food Chemistry and Gustatory Sense COOH N H María González Esguevillas MacMillan Group Meeting May 12th, 2020 Food and Food Chemistry Introduction Concepts Food any nourishing substance eaten or drunk to sustain life, provide energy and promote growth any substance containing nutrients that can be ingested by a living organism and metabolized into energy and body tissue country social act culture age pleasure election It is fundamental for our life Food and Food Chemistry Introduction Concepts Food any nourishing substance eaten or drunk to sustain life, provide energy and promote growth any substance containing nutrients that can be ingested by a living organism and metabolized into energy and body tissue OH O HO O O HO OH O O O limonin OH O O orange taste HO O O O 5-caffeoylquinic acid Coffee taste OH H iPr N O Me O O 2-decanal Capsaicinoids Coriander taste Chilli burning sensation Astray, G. EJEAFChe. 2007, 6, 1742-1763 Food and Food Chemistry Introduction Concepts Food Chemistry the study of chemical processes and interactions of all biological and non-biological components of foods biological substances areas food processing techniques de Man, J. M. Principles of Food Chemistry 1999, Springer Science Fennema, O. R. Food Chemistry. 1985, 2nd edition New York: Marcel Dekker, Inc Food and Food Chemistry Introduction Concepts Food Chemistry the study of chemical processes and interactions of all biological and non-biological components of foods biological substances areas food processing techniques carbo- hydrates water minerals lipids flavors vitamins protein food enzymes colors additive Fennema, O. R. Food Chemistry. -
A Guide to Export Controls
Foreign Affairs, Trade and Affaires étrangères, Commerce et Development Canada Développment Canada A Guide To CANADA’S EXPORT CONTROLS December 2012 Introduction The issuance of export permits is administered by the Export Controls Division (TIE) of Foreign Affairs, Trade and Development Canada (DFATD). TIE provides assistance to exporters in determining if export permits are required. It also publishes brochures and Notices to Exporters that are freely available on request and on our website www.exportcontrols.gc.ca. How to contact us: Export Controls Division (TIE) Foreign Affairs, Trade and Development Canada 111 Sussex Drive Ottawa, Ontario K1A 0G2 Telephone: (613) 996-2387 Facsimile: (613) 996-9933 Email: [email protected] For information on how to apply for an export permit and additional information on export controls please refer to our website. To enquire on the status of an export permit application: Recognized EXCOL users can check the status of an export permit application on-line. Non-recognized users can call (613) 996-2387 or email [email protected] and quote your export permit application identification (ref ID) number. Export Controls Division website: www.exportcontrols.gc.ca This Guide, at time of publication, encompasses the list of items enumerated on the Export Control List (ECL) that are controlled for export in accordance with Canadian foreign policy, including Canada’s participation in multilateral export control regimes and bilateral agreements. Unless otherwise specified, the export controls contained in this Guide apply to all destinations except the United States. Canada’s Export Control List can be found at the Department of Justice website at http://canada.justice.gc.ca/. -
Of 10 October 2018 Amending Council Regulation (EC) No 428/2009
14.12.2018 EN Official Journal of the European Union L 319/1 II (Non-legislative acts) REGULATIONS COMMISSION DELEGATED REGULATION (EU) 2018/1922 of 10 October 2018 amending Council Regulation (EC) No 428/2009 setting up a Community regime for the control of exports, transfer, brokering and transit of dual-use items THE EUROPEAN COMMISSION, Having regard to the Treaty on the Functioning of the European Union, Having regard to Council Regulation (EC) No 428/2009 of 5 May 2009 setting up a Community regime for the control of exports, transfer, brokering and transit of dual-use items ( 1), and in particular Article 15(3) thereof, Whereas: (1) Regulation (EC) No 428/2009 requires dual-use items to be subject to effective control when they are exported from or transit through the Union, or are delivered to a third country as a result of brokering services provided by a broker resident or established in the Union. (2) Annex I to Regulation (EC) No 428/2009 establishes the common list of dual-use items that are subject to controls in the Union. Decisions on the items subject to controls are taken within the framework of the Australia Group ( 2 ), the Missile Technology Control Regime ( 3 ), the Nuclear Suppliers Group ( 4 ), the Wassenaar Arrangement ( 5 ) and the Chemical Weapons Convention. (3) The list of dual-use items set out in Annex I to Regulation (EC) No 428/2009 needs to be updated regularly so as to ensure full compliance with international security obligations, to guarantee transparency, and to maintain the competitiveness of economic operators. -
Pyridoxine in Clinical Toxicology: a Review Philippe Lheureux, Andrea Penaloza and Mireille Gris
78 Review Pyridoxine in clinical toxicology: a review Philippe Lheureux, Andrea Penaloza and Mireille Gris Pyridoxine (vitamin B6) is a co-factor in many enzymatic controversial. This paper reviews the various indications pathways involved in amino acid metabolism: the main of pyridoxine in clinical toxicology and the supporting biologically active form is pyridoxal 5-phosphate. literature. The potential adverse effects of excessive Pyridoxine has been used as an antidote in acute pyridoxine dosage will also be summarized. intoxications, including isoniazid overdose, Gyromitra European Journal of Emergency Medicine 12:78–85 mushroom or false morrel (monomethylhydrazine) c 2005 Lippincott Williams & Wilkins. poisoning and hydrazine exposure. It is also recommended as a co-factor to improve the conversion of glyoxylic acid European Journal of Emergency Medicine 2005, 12:78–85 into glycine in ethylene glycol poisoning. Other indications Keywords: Antidotes, crimidin, drug-induced neuropathy, ethylene glycol, are recommended by some sources (for example crimidine hydrazine, isoniazid, metadoxine, pyridoxine poisoning, zipeprol and theophylline-induced seizures, adjunct to d-penicillamine chelation), without significant Department of Emergency Medicine, Erasme University Hospital, Brussels, Belgium. supporting data. The value of pyridoxine or its congener Correspondence to Philippe Lheureux, Department of Emergency Medicine, metadoxine as an agent for hastening ethanol metabolism Erasme University Hospital, 808 route de Lennik, 1070 Brussels, Belgium. or improving vigilance in acute alcohol intoxication is E-mail: [email protected] Introduction ing. More controversial issues include alcohol intoxication Pyridoxine or vitamin B6 is a highly water-soluble and zipeprol or theophylline-induced seizures. vitamin. Its main biologically active form is a phosphate ester of its aldehyde form, pyridoxal 5-phosphate (P5P). -
Association of Three Biomarkers of Nicotine As Pharmacogenomic Indices of Cigarette Consumption in Military Populations DISSERTA
Association of Three Biomarkers of Nicotine as Pharmacogenomic Indices of Cigarette Consumption in Military Populations DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By William Arthur Matcham Graduate Program in Nursing The Ohio State University 2014 Dissertation Committee: Professor Karen L. Ahijevych, PhD, Advisor Professor Donna L. McCarthy, PhD Professor Kristine Browning, PhD Professor Yvette Conley, PhD Copyright by William Arthur Matcham 2014 ABSTRACT Tobacco-related diseases have reached epidemic proportions. There is no risk-free level of tobacco exposure. In the United States, tobacco use is the single largest preventable cause of death and disease in both men and women. Cigarette smoking alone accounts for approximately 443,000 deaths per year (one fifth of total US deaths) costing a staggering $193 billion per year in avoidable healthcare expenses and lost productivity. Literature shows military populations have rates of tobacco use two to three times higher than the civilian population. Military personnel returning from deployment in conflict areas can exceed 50% smoking prevalence. Research shows that genetic factors account for 40-70% of variation in smoking initiation and 50-60% of variance in cessation success. In the U.S., tobacco is responsible for more deaths than alcohol, AIDS, car accidents, illegal drugs, murders and suicides combined. This descriptive, cross-sectional study examined three of the biological markers used in tobacco research: the α4β2 brain nicotinic receptors (nAChR) that contribute to genetic risk for nicotine dependence, nicotine metabolite ratio (NMR) as a phenotypic marker for CYP2A6 activity, and bitter taste phenotype (BTP) to determine their impact on cigarette consumption in military populations. -
Gyromitrin Poisoning: More Questions Than Answers
Gyromitrin poisoning: more questions than answers Denis R. Benjamin, MD some dedicated mycophagist, who had Many of these clues to the toxin never eaten the mushroom for many years made any coherent sense, even though it “It is perhaps ironic for a mushroom, without any ill effects, would suddenly was known for some years that the toxins Gyromitra esculenta, whose very name and unaccountably take ill. This too could be destroyed by cooking.” (From means edible, to be so poisonous under was passed off as the development of an Benjamin, 1995.) certain circumstances. Surprisingly, allergy in the unfortunate individual, the toxins were only characterized as that the mushrooms had been mistaken ll the enigmas related to this recently as 1968. A number of factors for a poisonous variety, or a rotten toxin remain unresolved. The conspired against the investigators of this batch had been eaten. To compound the current literature merely repeats mushroom poison (Lincoff and Mitchel, difficulties, Gyromitra esculenta caused Awhat was published before 1990. A 1977). The first was the observation that many poisonings in Europe, while in the deluge of “cut and paste.” No meaningful only a few of the participants eating the western USA, the seemingly identical research has been done in the past same quantity of the same mushroom species appeared largely harmless. All three decades. This is due to a number would become ill. Because of this, the sorts of explanations were proposed of factors. The first was the demise of poisoning was immediately ascribed to to explain this discrepancy, including academic pharmacognosy departments, ‘allergy’ or ‘individual idiosyncrasy.’ The such fanciful ones as suggesting that responsible for investigating the biology next problematic observation was that Americans cook their vegetables better. -
Toxicological Profile for Hydrazines. US Department Of
TOXICOLOGICAL PROFILE FOR HYDRAZINES U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service Agency for Toxic Substances and Disease Registry September 1997 HYDRAZINES ii DISCLAIMER The use of company or product name(s) is for identification only and does not imply endorsement by the Agency for Toxic Substances and Disease Registry. HYDRAZINES iii UPDATE STATEMENT Toxicological profiles are revised and republished as necessary, but no less than once every three years. For information regarding the update status of previously released profiles, contact ATSDR at: Agency for Toxic Substances and Disease Registry Division of Toxicology/Toxicology Information Branch 1600 Clifton Road NE, E-29 Atlanta, Georgia 30333 HYDRAZINES vii CONTRIBUTORS CHEMICAL MANAGER(S)/AUTHOR(S): Gangadhar Choudhary, Ph.D. ATSDR, Division of Toxicology, Atlanta, GA Hugh IIansen, Ph.D. ATSDR, Division of Toxicology, Atlanta, GA Steve Donkin, Ph.D. Sciences International, Inc., Alexandria, VA Mr. Christopher Kirman Life Systems, Inc., Cleveland, OH THE PROFILE HAS UNDERGONE THE FOLLOWING ATSDR INTERNAL REVIEWS: 1 . Green Border Review. Green Border review assures the consistency with ATSDR policy. 2 . Health Effects Review. The Health Effects Review Committee examines the health effects chapter of each profile for consistency and accuracy in interpreting health effects and classifying end points. 3. Minimal Risk Level Review. The Minimal Risk Level Workgroup considers issues relevant to substance-specific minimal risk levels (MRLs), reviews the health effects database of each profile, and makes recommendations for derivation of MRLs. HYDRAZINES ix PEER REVIEW A peer review panel was assembled for hydrazines. The panel consisted of the following members: 1. Dr. -
Synthetic and Naturally Occurring Hydrazines As Possible Cancer Causative Agents
[CANCER RESEARCH 35, 3693-3697 December 1975] Synthetic and Naturally Occurring Hydrazines as Possible Cancer Causative Agents Bela Toth' The Eppley Institute for Research in Cancer, University of Nebraska Medical Center, Omaha, Nebraska 68105 SUMMARY SYNTHETIC HYDRAZINES The various synthetic substituted hydrazines, which cause tumors in animals, are briefly enumerated. To date, 19 of Studies on the carcinogenic potentialities of synthetic them have proved to be tumorigenic in animals. A number substituted hydrazines began in 1962, when it was shown of these chemicals are found today in the environment, in that the base compound hydrazine sulfate induced lung industry, in agriculture, and in medicine, and the human neoplasms in mice (1). Subsequently, a series of hydrazine population is exposed to a certain degree to some of them. derivatives were investigated in various laboratories for Hydrazine also occurs in nature in tobacco and tobacco tumor-inducing capabilities. These studies clearly demon smoke. The three other naturally occurring hydrazine strated that these chemicals are indeed powerful tumori compounds are N-methyl-N-formylhydrazine, which oc genic substances in mice, hamsters, and rats, due to their curs in the wild edible mushroom, Gyromitra esculenta, tumor-inducing abilities in the intestines, brain, lungs, and @-N-[―y-L(+)-glutamylJ-4-hydroxymethylphenyl blood vessels, liver, breasts, kidneys, etc. Now, we know of hydrazine and 4-hydroxymethylphenylhydrazine, whkh 19 hydrazine derivatives that have been shown to be tumor are found in the commonly eaten cultivated mushroom, inducers. These include, in addition to hydrazine (1, 32), Agaricus bisporus. Tumorigenesis studies with the natu methyl- (35, 40), 1,2-dimethyl- (6, 27, 36, 46, 52), 1,1- rally occurring hydrazines are in progress. -
Hydrazine 1 Hydrazine
Hydrazine 1 Hydrazine Hydrazine Identifiers [1] CAS number 302-01-2 , 7803-57-8 (hydrate) [2] EC number 206-114-9 UN number 2029 (anhydrous) 2030 (aq. soln., 37–64%) 3293 (aq. soln., <37%) RTECS number MU7175000 Properties Molecular formula N H 2 4 Molar mass 32.05 g/mol (anhydrous) 50.06 g/mol (hydrate) Appearance Colourless liquid Density 1.0045 g/cm3 (anhydrous) 1.032 g/cm3 (hydrate) Melting point 1 °C (274 K, anhydrous) -51.7 °C (hydrate) Boiling point 114 °C (387 K), anhydrous 119 °C (hydrate) Solubility in water miscible Acidity (pK ) 8.1 a Refractive index (n ) [3] D 1.46044 (22 °C, anhydrous) 1.4284 (hydrate) Viscosity 0.876 cP (25 °C) Structure Hydrazine 2 Molecular shape pyramidal at N [4] Dipole moment 1.85 D Hazards [5] MSDS ICSC 0281 EU Index 007-008-00-3 EU classification Carc. Cat. 2 Toxic (T) Corrosive (C) Dangerous for the environment (N) R-phrases R45, R10, R23/24/25, R34, R43, R50/53 S-phrases S53, S45, S60, S61 NFPA 704 Flash point 52 °C Autoignition 24–270 °C (see text) temperature Explosive limits 1.8–100% LD [6] 50 59–60 mg/kg (oral in rats, mice) Related compounds Related nitrogen hydrides Ammonia Hydrazoic acid Related compounds monomethylhydrazine dimethylhydrazine phenylhydrazine [7] (what is this?) (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references Hydrazine is an inorganic chemical compound with the formula N H . It is a colourless liquid with an 2 4 ammonia-like odor and is derived from the same industrial chemistry processes that manufacture ammonia. -
Soil Mobility of Allyl Isothiocyanate and Chloropicrin As Influenced By
HORTSCIENCE 54(4):706–714. 2019. https://doi.org/10.21273/HORTSCI13836-18 and some soil arthropods, but it provides little control of fungi and weeds, whereas Met-Na controls weeds, nematodes, and some fungi. CP Soil Mobility of Allyl Isothiocyanate controls insects and fungi, but it has less activity against nematodes and weeds (Ajwa and Trout, and Chloropicrin as Influenced by 2004). The most promising MeBr alternatives are chloropicrin and Met-Na (Gao et al., 2012; Surfactants and Soil Texture Jacoby, 2016; Klose et al., 2008; Yates et al., 2002); therefore, more than 7000 tons of chlo- Feras Almasri ropicrin were used in 2011 (Nelson et al., 2013) Department of Plant Sciences, University of California at Davis, Davis, CA in California. 95616 Although Met-Na is an effective fumigant (Nelson et al., 2002), the use of Met-Na is Husein A. Ajwa strongly regulated due to the excessive soil fu- Department of Plant Sciences, University of California at Davis, 1636 East migant release into the atmosphere (Goodhue et al., 2016; Saeed et al., 1997). Because of Alisal Street, Salinas, CA 93905 this excessive release into the atmosphere, Sanjai J. Parikh Met-Na, Met-K, and DMTT labels require wide buffer zones and specific measures to University of California at Davis, Department of Land, Air and Water protect people from off-target movement Resources, Davis, CA 95616 (Guthman and Brown, 2016). Furthermore, 1 Met-Na, Met-K, and DMTT degrade in soil Kassim Al-Khatib to MITC, which is classified as a toxicity I Department of Plant Sciences, University of California at Davis, Davis, CA category pesticide (Gao et al., 2012; Klose 95616 et al., 2008). -
Taste Sensibility to Phenylthiocarbamide and Its Relationship to Food Preferences
127 ORIGINAL ARTICLE Taste sensibility to phenylthiocarbamide and its relationship to food preferences Sensibilidade à feniltiocarbamida e sua relação com a preferência alimentar Marcela Maria Pandolfi1. Charles Yea Zen Chow2. Luciana Sayumi Fugimoto Higashi2. Ana Thamilla Fonseca2. Myllena de Andrade Cunha2. Carolina Nunes França1,3. Patrícia Colombo-Souza1. 1 Post Graduation Program on Health Sciences, Santo Amaro University (UNISA). 2 Medicine Students, Santo Amaro University (UNISA). 3 Cardiology Division, Federal University of São Paulo (UNIFESP). ABSTRACT Introduction: Foods like cabbage, broccoli, pepper and wine, containing proteins such as phenylthiocarbamide (PTC), cause a bitter taste in some people. Studies showed the relation between tasting profile and the development of obesity, and consequently leading to cardiovascular disease. Objective: Compare the differences in the taste sensibility to PTC present in some foods in individuals classified according to the nutritional status. Methods: One hundred fifty-three patients classified as eutrophic, overweight or obese received one drop of each PTC solution in the tongue, since the most diluted to the individual perception to bitter taste, in a total of 15 increasing grades. Results: Participants were predominantly middle-aged females, eutrophics and supertasters. It was found a correlation between PTC solution and red wine in the three groups evaluated (eutrophic, obese and overweight). Besides, eutrophic and obese that disliked wine had more sensibility to PTC. Conclusion: Our main finding showed that eutrophic and obese that disliked red wine had more sensibility to PTC. We did not find differences in the sensitivity to PTC for the other foods analyzed (fried foods, fruit and vegetables). Keywords: Taste sensibility.