D i ox i n s a n d f u r a n s i n t h e atmosphere. Their impact on humans and nature. Emission sources What are dioxines and furans? The term Dioxin is commonly used to refer to a family of toxic chemicals that all share a similar chemical structure and a common mechanism of toxic action. Most dioxins and furans are not manmade or produced intentionally, but are created when other chemicals or products are made. This family includes: seven of the polychlorinated dibenzo dioxins (PCDDs), ten of the polychlorinated dibenzo furans (PCDFs) and twelve of the polychlorinated biphenyls (PCBs). · PCDD · 2,3,7,8TCDD · PCDF · PCB · PCDDs and PCDFs are not commercial chemical products but are trace level unintentional byproducts of most forms of combustion and several industrial chemical processes. Of all of the dioxins and furans, one, 2,3,7,...
ANDMEBAASIGA SCOPUS TEOSTATUD OTSINGUD Teostatud lihtotsing üldiste märksõnadega: ainsaks kriteeriumiks seejuures on, et otsisõna sisalduma artikli pealkirjas, märksõnana või abstraktselt. OTSIPROFIIL LEITUD ALLIKATE ARV carcinogens AND groundwater 417 health risks AND groundwater pollution 1276 groundwater AND pollution AND problems 3708 groundwater AND health risks AND 275 (carcinogen OR cancer) groundwater AND cancer AND (organisms 289 OR health) groundwater AND ecosystem (cancer OR 0 carcinoma OR toxicology) Teostatud otsing teemaspetsiifiliste märksõnadega: OTSIPROFIIL LEITUD ALLIKATE ARV (releva...
Summary The present summary is based on the book "Northern Europe’s seas. Norther Europe’s environment" by Britt Aniansson. Oceans and seas are polluted every day by different substances that reach the waters from different sources on land and at the sea. The author points out four main problems in the marine environment. One of the main problems is the chemical pollution which is caused by natural or man- made halogenated compounds, pesticides, dioxins, chlorinated organic materieals and so on. These compounds are causing deformage in marine animals and are storaged in their fatty tissues. They have also been found in organisms throughout the world oceans because they are dispersed quickly by winds and currents. Another problem that affects the marine life is excess phosphorus and nitrogen flow into the sea from towns, factories and other man-made sources which cause intense alg...
6. HARJUTUSÜLESANNE 6.1. Teemaotsing internetist Loe läbi teoreetiline õppematerjal interneti otsingu ja otsimootorite kohta. Otsi oma rühma teemal veebiartikleid interneti erinevatest otsimootoritest ja teemakataloogidest. Vali otsinguteks vähemalt 3 otsimootorit sh üks metaotsimootor, mis võimaldavad teostada kompleksotsingut. Üks otsimootor võiks olla Google Scholar, mis onlinkserveri SFX kaudu seotud raamatukogu andmebaasidega ja võimaldab teha kindlaks täisteksti kättesaadavuse. Kirjelda, milliseid võimalusi otsingu täpsustamiseks kasutasid: fraasi otsing, keel, kärpimismärk, ajaline piirang, otsisõna esinemine tekstis, pealkirjas, URLis jne. Anna veebilehekülgedele hinnang autorluse, täiendamise, objektiivsuse ja sisu seisukohalt. Kasuta efektiivseteks otsinguteks interneti otsijuhendit. Esita: a) Otsimootorite nimetused ja veebiaadressid: b) Otsistrateegia, piirangud: c) Leitud /relevant...
Handbook of Meat Processing Handbook of Meat Processing Fidel Toldrá EDITOR A John Wiley & Sons, Inc., Publication Edition first published 2010 © 2010 Blackwell Publishing Blackwell Publishing was acquired by John Wiley & Sons in February 2007. Blackwell’s publishing program has been merged with Wiley’s global Scientific, Technical, and Medical business to form Wiley-Blackwell. Editorial Office 2121 State Avenue, Ames, Iowa 50014-8300, USA For details of our global editorial offices, for customer services, and for information about how to apply for permission to reuse the copyright material in this book, please see our website at www.wiley.com/ wiley-blackwell. Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by Blackwell Publishing, provided that the base fee is paid directly to the Copyright Clearance Cent...
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