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Air Pollution Facts, Air Pollution Effects, Air Pollution Solutions, Air Pollution Causes

Air Pollution Facts, Air Pollution Effects, Air Pollution Solutions, Air Pollution Causes
Smog hanging over cities is the most familiar and obvious form of air pollution. But there are different kinds of pollution—some visible, some invisible—that contribute to global warming. Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered air pollution. Carbon dioxide, a greenhouse gas, is the main pollutant that is warming Earth. Though living things emit carbon dioxide when they breathe, carbon dioxide is widely considered to be a pollutant when associated with cars, planes, power plants, and other human activities that involve the burning of fossil fuels such as gasoline and natural gas. Other greenhouse gases include methane—which comes from such sources as swamps and gas emitted by livestock—and chlorofluorocarbons (CFCs), which were used in refrigerants and aerosol propellants until they were banned because of their deteriorating effect on Earth's ozone layer. Related:  Pollution

Pollution: Causes and Effects Pollution, we hear it every other day at school, college and read about it in newspapers. So what is it? Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollutants are the key elements or components of pollution which are generally waste materials of different forms. Pollution disturbs our ecosystem and the balance in the environment. Pollution occurs in different forms; air, water, soil, radioactive, noise, heat/ thermal and light. Types & Causes of Pollution Air Pollution is the most prominent and dangerous form of pollution. Smoke from chimneys, factories, vehicles or burning of wood basically occurs due to coal burning; this releases sulphur dioxide into the air making it toxic. Water Pollution has taken toll of all the surviving species of the earth. Soil pollution occurs due to incorporation of unwanted chemicals in the soil due to human activities. Effects of Pollution 1. 2. 3. 4. 5.

Pollution Prevention coal power: air pollution Burning coal is a leading cause of smog, acid rain, global warming, and air toxics. In an average year, a typical coal plant generates: 3,700,000 tons of carbon dioxide (CO2), the primary human cause of global warming--as much carbon dioxide as cutting down 161 million trees. 10,000 tons of sulfur dioxide (SO2), which causes acid rain that damages forests, lakes, and buildings, and forms small airborne particles that can penetrate deep into lungs. 500 tons of small airborne particles, which can cause chronic bronchitis, aggravated asthma, and premature death, as well as haze obstructing visibility. 10,200 tons of nitrogen oxide (NOx), as much as would be emitted by half a million late-model cars. 720 tons of carbon monoxide (CO), which causes headaches and place additional stress on people with heart disease. 220 tons of hydrocarbons, volatile organic compounds (VOC), which form ozone. 114 pounds of lead, 4 pounds of cadmium, other toxic heavy metals, and trace amounts of uranium.

Biodiversité de la Guyane Un article de Wikipédia, l'encyclopédie libre. La biodiversité de la Guyane est très importante tant au niveau floristique que faunistique. Aussi, des travaux scientifiques sont menés depuis de nombreuses années pour connaître et protéger cette diversité. Généralités[modifier | modifier le code] Richesse du vivant[modifier | modifier le code] La Mangrove La forêt humide de Guyane s'est paradoxalement épanouie sur un des sols les plus pauvres du monde, pauvre en azote, en potassium, en phosphore et en matières organiques. L'acidité des sols est également à l'origine de cette médiocrité des sols guyanais. La France d'outre-mer est responsable de la protection d'un très important patrimoine écologique[1], dont celui de la Guyane qui est exceptionnel au niveau mondial. Les micro-organismes seraient bien plus nombreux encore, notamment dans le nord qui rivalise avec l'amazonie brésilienne, Bornéo et Sumatra. Recherche scientifique[modifier | modifier le code] Tortue Luth Route de Guyane française

Le Comité européen des Régions veut en finir avec les sacs en plastique L'Assemblée des villes et des régions de l'Union Européenne vient de demander à la Commission Européenne de prendre des mesures pour réduire l'utilisation des sacs en plastique de 80% et d'interdire aux magasins de les distribuer gratuitement. info + Le rôle du Comité européen des Régions Le Comité des régions est l'Assemblée des représentants des pouvoirs locaux et régionaux des 28 États membres de l'Union européenne. Chaque année, sur la planète Terre, une bonne centaine de milliards de sacs en plastique sont distribués. Le CdR a pour objectif, à l'échelle de l'UE, de réduire à 35 sacs en plastique maximum par an et par habitant. Stella Giani

untitled Air pollutants can affect Canadians' health, the natural environment and the economy. Air pollution is broadly defined as the presence in the air of any pollutant (or substance) that directly or indirectly endangers, interferes with, causes damages, degrades or alters human health, animal health, the environment, or ecosystems. Individual pollutants differ from one another in their chemical composition, reactions with other chemicals, sources, persistence, ability to travel through the atmosphere, and impacts. Criteria air contaminants (CACs), which are the focus of this page, refer to a group of pollutants that include sulphur oxides (SOx), nitrogen oxides (NOx), particulate matter (PM), volatile organic compounds (VOC), carbon monoxide (CO) and ammonia (NH3). In addition, ground-level ozone (O3) and secondary particulate matter are often referred to among the CAC because they both are by-products of chemical reactions between the CACs that take place in the atmosphere. Economic impacts

Environment & Pollution Hunt is on for new Planet Nine For a planet that hasn’t technically been discovered yet, Planet Nine is generating a lot of buzz. Astronomers have not yet found a new planet orbiting the sun. Yet some remote icy bodies are dropping clues that a giant orb may be lurking on the fringes of the solar system.Six hunks of ice in the debris field beyond Neptune travel on orbits that are aligned with one another. Planetary scientists... 16:40 PM, February 3, 2016 Planets, Mathematics Readability Score: 7.9 Bright night lights, big science In polar regions of the world, a dazzling light show often plays out in the night sky.

NASA instrument tracks pollution from Russian fires Drought and the worst heat wave Russia has seen in 130 years have sparked a devastating outbreak of wildfires across the nation this summer, primarily in the country's western and central regions. According to wire service reports and Russia's Emergency Situations Ministry, as of Aug. 6, 2010, some 558 fires were burning. The fires have killed at least 52 people, destroyed some 2,000 homes and charred more than 1,796 square kilometers (693 square miles). The Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua spacecraft is tracking the concentration and transport of carbon monoxide from the Russian fires. As shown in a new image, acquired July 21, 2010, the concentration of carbon monoxide from the fires on that date was largely limited to the European part of Russia (western and central Russia). AIRS is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., under contract to NASA.

La biodiversité végétale diminue en Guyane Des scientifiques des laboratoires Mécanismes adaptatifs: des organismes aux communautés... Les résultats d'une étude coordonnée par les laboratoires du CNRS et du Muséum national d'Histoire naturelle ont été publiés dans le journal Global Change Biology du mois d'octobre 2009. Ils ont fait ... Pour soutenir l'effort de nombreux pays en développement désireux de connaître, préserver et valoriser durablement leur biodiversité végétale, le ministère français des Affaires étrangères et européennes (MAEE) a lancé le programme Sud Expert Plantes (SEP) une initiative de co-développement Nord-Sud axée sur l'étude de la biodiversité végétale. Ce document à la fois stratégique et technique est destiné à : - informer sur l'étendue de la problématique en matière de biodiversité guyanaise ; - permettre une meilleure synergie des actions réalisées par les différents acteurs de la biodiversité ; - renforcer l'efficacité des actions existantes et en initier de nouvelles.

Reduce, Reuse, Recycle - Sustainable Man There is no such thing as an organism that doesn’t create an impact on the environment. The question becomes how much impact that organism is making and whether the environment can absorb that impact without severely affecting the entire ecosystem. The average American creates 12 times the environmental impact of the average Indian. Within nations, super rich households can consume as much as 100-1000 times that of the poorest. The Three R’s (reduce, reuse, recycle) represent a checklist from which we can lower our impact on the environment. The second step is to determine what can be reused once the object has served its initial purpose. Finally, when things can no longer be reused, we should make every attempt to recycle them. This pillar explores, inspires, and promotes ways we can all use the three R’s in our daily lives.

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