Harm from pollution

Xem 1-20 trên 23 kết quả Harm from pollution
  • With the evaluation method is scientific and has been tested as: methods speculation, rapid assessment methods, research methods analyze the physical environment (water, air), statistical methods,comparison methods, ... to make reliable assessments as a basis for consultation measures to reduce environmental pollution both during construction and operation of the project.

    pdf76p rose_12 03-12-2012 14 4   Download

  • BEING CONSCIOUS of the need to preserve the human environment in general and the marine environment in particular, RECOGNIZING that deliberate, negligent or accidental release of oil and other harmful substances from ships constitutes a serious source of pollution, RECOGNIZING ALSO the importance of the International Convention for the Prevention of Pollution of the Sea by Oil, 1954, as being the first multilateral instrument to be concluded with the prime objective of protecting the environment, and appreciating the significant contribution which that Convention has made in preserving the ...

    pdf127p kvb2209 14-01-2010 145 37   Download

  • Anthropogenic air pollution constitutes of many substances. Greenhouse gases absorb and reflect some of the infrared parts of solar radiation reflected from the earth surface thus causing the troposphere to be warmer. Among others, these substances are carbone-dioxide, water vapour, hydrogen oxides, nitrogen-oxides and methane. Beyond causing warming, most of these gases are poisonous to the Earth’s biosphere. Besides greenhouse gases, there are a few more poisonous substances which have anthropogenic sources.

    pdf378p 123859674 04-07-2012 45 10   Download

  • Where specific products, books, or laboratories are mentioned, no official U.S. government endorsement is intended or implied. Digital format users: No software was independently developed for this project. Technical questions related to software should be directed to the manufacturer of whatever software is being used to read the files. Adobe Acrobat PDF files are supplied to allow use of this product with a wide variety of software, hardware, and operating systems (DOS, Windows, MAC, and UNIX)....

    doc98p bann11f 07-04-2011 80 8   Download

  • Many harms flow across the ever-more porous sovereign borders of a globalizing world. These harms expose weaknesses in the international legal regime built on sovereignty of nation states. Using the Trail Smelter arbitration, one of the most cited cases in international environmental law, this book explores the changing nature of state responses to transboundary harm. Taking a critical approach, the book examines the arbitration’s influence on international law generally and international environ- mental law specifically.

    pdf373p lyly_5 25-03-2013 45 6   Download

  • Air pollution is one of the most serious environmental threats to urban populations (Cohen 2005). Exposures vary among and within urban areas, but all people living in cities are exposed, and many are harmed, by current levels of pollutants in many large cities. Infants, young children, seniors and people who have lung and heart conditions are especially affected, but even young, healthy adults are not immune to harm from poor air quality.

    pdf42p saimatkhauroi 01-02-2013 19 4   Download

  • It is important to note that NPDES permits are only required of so-called “point sources.” Point sources tend to be larger industrial and commercial facilities and public treatment facilities. Some large agricultural operations are considered point sources, but, by and large, runoff from farms, roads, lawns, and most small pollution sources are not directly regulated. These “nonpoint sources” are the subject of increased scrutiny, since most of the nation’s remaining water quality problems are due to nonpoint pollution.

    pdf42p saimatkhauroi 01-02-2013 14 3   Download

  • Third, not only are the coefficients measuring the effect of pollution larger for low SES children, but these children are also exposed to considerably higher levels of pollution. As a result, they suffer greater harm from pollution, and higher pollution levels explain roughly 4% of the gap in asthma rates.

    pdf80p can_thai 12-12-2012 24 2   Download

  • But with other POPs the transition to safer alternatives will require more effort. Alternatives may be more expensive and their manufacture and use more complicated. That could put developing countries in an awkward spot – struggling from day to day, the world's poor tend to use what they can afford and what is available. So it is not enough for the Convention simply to say No to its target list of POPs: It must also help governments find a way to say Yes to replacement solutions. Take the case of DDT.

    pdf18p cao_can 02-01-2013 15 5   Download

  • Air pollution does not only damage the air; it also damages environments on Earth’s surface and their inhabitants. Plants and animals are harmed by air pollution. Sometimes it is the pollutants themselves that cause damage. Other times pollutants combine and change the resources that plants and animals depend upon such as water, soil, and nutrients. The impacts of air pollution are diverse and numerous. Air pollution can have serious consequences for the health of human beings, and also severely affects natural ecosystems.

    pdf147p saimatkhauroi 01-02-2013 17 5   Download

  • Air pollution is a leading environmental threat to the health of urban populations overall and specifically to New York City residents. Clean air laws and regulations have improved the air quality in New York and most other large cities, but several pollutants in the city’s air are at levels that are harmful. This report provides estimates of the toll of air pollution on the health of New Yorkers. It focuses on 2 common air pollutants—fine particulate matter (PM2.5) and ozone (O3).

    pdf40p saimatkhauroi 01-02-2013 26 5   Download

  • Breathing polluted air is unhealthy. For example, you might find it more difficult to breathe, you might cough or your chest might feel tight. Two main types of air pollution are ozone pollution and particle pollution. The ozone we breathe at ground level is bad. But very high in the atmosphere (the stratosphere) is a natural layer of ozone that is good because it helps protect us from the sun’s harmful ultraviolet rays. A rhyme that can help you remember this is “Ozone: Good up high, bad nearby.

    pdf232p saimatkhauroi 01-02-2013 17 4   Download

  • Outside the air regulatory setting, park, forest, and refuge managers may use data from air pollution related lichen studies to aid management decisions, conduct NEPA analyses, and provide information to the public about resource condition and impacts. To meet the requirements of the Wilderness Act, Organic Act, and National Wildlife System Improvement Act, federal land managers often subscribe to what is known as the “precautionary principle.

    pdf38p saimatkhauroi 01-02-2013 22 4   Download

  • Sulfur trioxide irritates the mucous membranes of the respiratory tract. A concentration of 1 volume of SO3 in a million volumes of air (one part per million or 1 ppm) is enough to cause coughing and choking. Sulfur trioxide dissolves in water to form sulfuric acid, which is a strong acid capable of corroding or destroying many materials. Sulfur trioxide can absorb moisture from the atmosphere to form very fine droplets of sulfuric acid. Inhalation of these droplets can harm the respiratory system. Chronic exposure leads to a much greater likelihood of suffering from bronchitis.

    pdf12p tainhacmienphi 19-02-2013 16 4   Download

  • For millennia, advances in human progress have been tied to our ability to protect ourselves from the harmful effects of the wastes we produce—ranging from human waste to the organic and inorganic by-products of everyday living. Across the world, cultures learned to bury their dead away from their homes and to burn their waste or make certain that it was carried away by streams and rivers flowing downstream from their homes. Those cultures that learned this most effectively thrived. When the industrial revolution took place in the nineteenth century, rivers again enabled progress.

    pdf190p tom_123 14-11-2012 22 3   Download

  • Inorganic mercury is toxic when humans or wildlife are exposed to high levels for a short peri- od of time. Organic methylmercury has a greater tendency to accumulate in the body over time, eventually causing harm, even in small amounts. Methylmercury has the three properties that make substances particularly harmful to humans and other organisms — it persists, it bioaccumulates, and it is toxic to most life forms. The health effects of mercury are described in more detail in the next chapter of this primer.

    pdf58p saimatkhauroi 01-02-2013 21 3   Download

  • Like outdoor air , indoor air contains a complex mixture of pollutants (chemical substances, allergens and microbes) from different sources that changes with time. Findings on the health effects of single air pollutants cannot necessarily be extended to mixtures. Indeed, different chemicals may interact with each other and cause more (or less) harmful effects than the sum of the effects caused by each chemical separately. Very little is known about the combined effects of indoor air pollutants.

    pdf6p doipassword 01-02-2013 15 3   Download

  • The presentation "Biomass pollution basics" addresses the basics of biomass burning and introduces participants to the concept of incomplete combustion, the wide range of pollutants emitted from wood fires and stoves and typical pollutant concentrations. Two pollutants are of primary interest for both health effects and IAP monitoring: particulate matter (PM) and carbon monoxide (CO). Smaller particles (PM2.5 and PM1) are likely to be most harmful, as they penetrate deep into the human lung. Larger particles are more likely to get 'filtered' by the upper respiratory tract.

    pdf22p doipassword 01-02-2013 16 3   Download

  • If the soil becomes saturated, oxygen may become scarce and in anoxic conditions, denitrifying bacteria may convert the nitrate to nitrogen gases (NO, N2O, and N2). Nitrogen converted to these gases becomes unavailable for plant uptake or for surface water contamination. Additionally, saturated soil during the growing season is harmful to many crops like maize that cannot tolerate low oxygen concentrations in the root zone for more than a few days.

    pdf0p tainhacmienphi 19-02-2013 11 2   Download

  • The Agency’s FY 2013 budget request supports the Administration’s commitment to ensure that all Americans are protected from significant risks to human health and protect the environment where they live, learn and work. The EPA’s work touches on the lives of every single American, every single day as we protect the environment for our children, but also for our children’s children. The mission, day in and day out, is to protect the health of the American people by keeping pollution out of the air we breathe, toxins out of the water we drink and swim in, and harmful chemicals...

    pdf1457p nhacsihuytuan 13-04-2013 22 7   Download

Đồng bộ tài khoản