Serious problems of environment

Xem 1-14 trên 14 kết quả Serious problems of environment
  • Saigon river is also polluted by industrial and agricultural waste water from small-sized enterprises along the river which is to 65.000 cubic meters a day. Residential waste water another pollution factor. Everyday, 74.800 cubic meters of waste water in dumped into the river from residential in localities, with over 90% of the waste coming from Hồ Chí Minh city.

    ppt62p tet0202 19-02-2013 27 3   Download

  • Mercury, in its elemental form, is a liquid metal that can form a vapour at room temperature. Inhaling mercury vapours or ingesting mercury can cause serious injury or death. The body is able to excrete mercury slowly; if the level of exposure is not too high, recovery can take place following accidental or short-term exposure. High levels of exposure may cause birth defects, permanent brain or kidney damage, and death. Mercury becomes more poisonous when it is converted to methylmercury (the principal form found in fish) because it is able to enter blood and organs, especially the brain.

    pdf25p yeurauxanh88 01-10-2012 29 1   Download

  • Synthetic polymers are essential for modern human life, since they are used in industrial and agricultural fields. However, most synthetic polymers that have been developed by using petroleum and coal as raw materials are not compatible with the environment, since they cannot be included in the natural recycling system. There are serious contradictions between the convenience that people require today and compatibility with the natural environment. It is easy to say that we should use only natural materials in order to solve the problems coming from man-made materials.

    pdf335p beobobeo 01-08-2012 35 13   Download

  • This book tries to address different aspects and issues related to video and multimedia distribution over the heterogeneous environment considering broadband satellite networks and general wireless systems where wireless communications and conditions can pose serious problems to the efficient and reliable delivery of content. Specific chapters of the book relate to different research topics covering the architectural aspects of the most famous DVB standard (DVB-T, DVB-S/S2, DVB-H etc.

    pdf220p bi_bi1 13-07-2012 41 8   Download

  • The US Environment Protection Agency defines arsenic as a persistent, bio-accumulative, and toxic chemical having the ability to accumulate in the air, soil, and water. In 1961, the pollution of arsenic was first discovered in Taiwan, and later in Belgium, Netherland, Germany, Italy, Hungary, Portugal, The Philippines, Ghana, USA, Chile, Mexico, Argentina, and Thailand. In 1992, the toxicity of arsenic was found as a disaster in West Bengal, India.

    pdf14p sinhtobo111 25-04-2011 33 7   Download

  • While the links between ICT and environmental outcomes are becoming clearer, there is no separate statistical field that links the two. Nevertheless, some data are available from official statistical sources, from analytical work and from product life cycle studies. This report suggests a conceptual framework for the new statistical field “ICT and the environment” based on an existing OECD framework for information society statistics. Sources of official data to populate the framework are investigated and some relevant work has been identified.

    pdf40p yeurauxanh88 28-09-2012 33 5   Download

  • Ecotourism is said to be a high prospective trend in tourism development. Theoretically, it addresses the triple bottom line of the World’s pressing issues. Nevertheless, the reality does not usually come up to expectations. Very few case studies were proved to be successfully adopted. One of the reasons is the weakness in terms of community approach, particularly in developing countries.

    pdf13p dem_thanh 22-12-2012 29 4   Download

  • Forests play an important role in reducing erosion. In Vietnam, destroying natural forests in mountainous areas has caused serious environmental problems for sustainable development. Required forest areas for protection of soils from erosion in Vietnam are defined in this study. An algorithm of defining required forest area for soil erosion prevention is based on a comparison of soil loss prediction and its threshold of 10 ton ha-1yr-1 (soil loss tolerance) within the GIS environment. Soil loss is predicted from rainfall erosivity index, slope, porosity and...

    pdf14p dem_thanh 22-12-2012 23 3   Download

  • At one time or another, most families will need to provide home care for a family member who is ill, aging, or disabled. Sometimes, health problems such as the flu are temporary and familiar. At other times a loved one’s health problems, such as Alzheimer’s disease or a terminal illness, may be extremely difficult to manage. Whenever possible, a person who is ill, disabled, or recovering from surgery or serious illness should be cared for in his or her own home.

    pdf255p hyperion75 22-01-2013 14 3   Download

  • Asthma is a serious public health problem throughout the world, affecting people of all ages. When uncontrolled, asthma can place severe limits on daily life, and is sometimes fatal. In 1993, the Global Initiative for Asthma (GINA) was formed. Its goals and objectives were described in a 1995 NHLBI/WHO Workshop Report, Global Strategy for Asthma Management and Prevention. This Report (revised in 2002), and its companion documents, have been widely distributed and translated into many languages.

    pdf24p dacotaikhoan 26-04-2013 17 2   Download

  • European urban areas face a number of environmental challenges. Although the scale and intensity of the problems vary, a common set of issues can be identified. These comprise poor air quality, traffic volumes and congestion, high levels of ambient noise and scarcity of quiet areas as sport, play and recreational areas, neglect of the built environment, high level of greenhouse gas emissions, urban sprawl and generation of large volumes of waste and waste water.

    pdf61p dacotaikhoan 26-04-2013 51 2   Download

  • Chemical Exposure Continued exposure of some children to lead in their environment—a well-known neurotoxin—is having serious effects on their development. And experts have increasing concerns about children being exposed to chemicals in the environment and resultant neurodevelopmental disorders such as attention deficit hyperactivity disorder (ADHD). The North American Commission for Environmental Cooperation’s (CEC) children’s environmental health indicators initiative was making important progress in coming to grips with the scale of this problem.

    pdf160p can_thai 12-12-2012 12 1   Download

  • The atmosphere may be our most precious resource. Accordingly, the balance between its use and protection is a high priority for our civilization. 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. 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....

    pdf692p cucdai_1 19-10-2012 21 9   Download

  • Hsiao and Rashvand Human-centric Computing and Information Sciences 2011, 1:1 http://www.hcis-journal.com/content/1/1/1 RESEARCH Open Access Integrating body language movements in augmented reality learning environment Kuei-Fang Hsiao1* and Habib F Rashvand2 * Correspondence: kfhsiao@mail. mcu.edu.tw 1 Dept.

    pdf10p dauphong13 10-02-2012 18 4   Download

Đồng bộ tài khoản