Автор: Hannah Wood Название: Wipe-clean Pen Control ISBN: 1409582604 ISBN-13(EAN): 9781409582601 Издательство: Usborne Рейтинг: Цена: 6150.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Preschool children need to learn to hold and manipulate a pen effectively before they can start writing, and this wipe-clean book will provide them with plenty of practice. The special pen provided goes on smoothly and evenly; when the child has finished - or if they make a mistake - simply wipe off and the ink leaves virtually no residue.
Автор: Henri Duff Название: Chemistry, Emission Control, Radioactive Pollution and Indoor Air Quality ISBN: 1681173174 ISBN-13(EAN): 9781681173177 Издательство: Gazelle Book Services Рейтинг: Цена: 212510.00 T Наличие на складе: Поставка под заказ. Описание: The atmosphere may be our most precious resource. Accordingly, the balance between its use and protection is a high priority for our civilisation. While many of us would consider air pollution to be an issue that the modern world has resolved to a greater extent, it still appears to have considerable influence on the global environment. The radioactive pollution refers to the physical pollution of air, water and the other radioactive materials. The natural radiations are also known as the background radiations. In this the cosmic rays are involved and reach the surface of earth from space. It includes the radioactive elements like radium, uranium, thorium, radon, potassium and carbon. These occur in the rock, soil and water. The man made radiations include the mining and refining of plutonium and thorium. This production and explosion of nuclear weapons include the nuclear fuels, power plants and radioactive isotopes. Indoor air quality (IAQ) is a term which refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. IAQ can be affected by gases (including carbon monoxide, radon, volatile organic compounds), particulates, microbial contaminants (mould, bacteria), or any mass or energy stressor that can induce adverse health conditions. Source control, filtration and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality in most buildings. Residential units can further improve indoor air quality by routine cleaning of carpets and area rugs. EPA has guidelines for frequency of cleaning based on traffic, number of household members, pets, children and smokers. Carpets and rugs act like an air filter and must be cleaned. Determination of IAQ involves the collection of air samples, monitoring human exposure to pollutants, collection of samples on building surfaces, and computer modelling of air flow inside buildings. Indoor air pollution in developing nations is a major health hazard globally. In many countries with ambitious economic growth targets the acceptable levels of air pollution have been transgressed. Serious respiratory disease related problems have been identified with both indoor and outdoor pollution throughout the world. This book deals with several air pollution issues air pollution chemistry; air pollutant emission control; radioactive pollution and d) indoor air quality.
Автор: Leo M.L. Nollet and Dimitra A. Lambropoulou Название: Chromatographic Analysis of the Environment: Mass Spectrometry Based Approaches ISBN: 1466597569 ISBN-13(EAN): 9781466597563 Издательство: Taylor&Francis Рейтинг: Цена: 377690.00 T Наличие на складе: Невозможна поставка. Описание: This detailed handbook covers different chromatographic analysis techniques and chromatographic data for compounds found in air, water, and soil, and sludge. The new edition outlines developments relevant to environmental analysis, especially when using chromatographic mass spectrometric techniques. It addresses new issues, new lines of discussion, and new findings, and develops in greater detail the aspects related to chromatographic analysis in the environment. It also includes different analytical methodologies, addresses instrumental aspects, and outlines conclusions and perspectives for the future.
Автор: Frank Marken; David Fermin Название: Electrochemical Reduction of Carbon Dioxide: Overcoming the Limitations of Photosynthesis ISBN: 1782620427 ISBN-13(EAN): 9781782620426 Издательство: Royal Society of Chemistry Рейтинг: Цена: 209790.00 T Наличие на складе: Невозможна поставка. Описание: Providing a comprehensive overview, this book is ideal for researchers and industrial chemists working in environmental science, electrochemistry and chemical engineering.
Автор: Lahav, Ori. Название: Aquatic chemistry : ISBN: 3110603926 ISBN-13(EAN): 9783110603927 Издательство: Walter de Gruyter Цена: 73270.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
This book provides chemical concepts as well as crucial steps for inorganic water and wastewater treatment. Examples and tools help to understand and to guide through industrial and natural water process engineering. Students in chemical and environmental engineering as well as researchers and professionals benefit from this concise and explanatory book.
