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Pollution
Pollution is the process of giving out contaminants such as smoke and carbon dioxide, and too much of a certain product such as light, heat and sound that both cause harm to the environment.
8,185 Questions
What is the effect of sand storm?
Sandstorm reduces visibility, making it difficult to see clearly. It can also cause respiratory issues for those with sensitive airways. In extreme cases, it can lead to property damage due to abrasion by blowing sand particles.
What gasses make up acid rain?
Most of what is termed as Acid Rain contains Sulphuric Acid, this is formed by a combination of Hydrogen Sulphide, Sulphur Dioxide and water. Answer: Acid precipitation is formed when sulfur oxides (SOx) and nitrogen oxides (NOx) are absorbed by water droplets. This forms sulfurous/sulfuric and nitrous/nitric acids. Some of the sulfurous acid can be transformed into sulfuric acid. The chemistry:
Sulfur dioxide and water form sulfurous acid (H2SO3)
SO2(g) + H2O(l) <--> H2SO3(aq) In some cases sulfur dioxide (SO2) oxidizes to sulfur trioxide (SO3)
2SO2(g) + O2(g) -> 2SO3(g) The sulfur trioxide (SO3) then combines with water making sulfuric acid (H2SO4)
SO3(g) + H2O(l) -> H2SO4(aq) Some oxides of nitrogen like nitrogen dioxide (NO2) react with water to form nitrous acid (HNO2) and nitric acid (HNO3)
2NO2(g) + H2O(l) -> HNO2(aq) + HNO3(aq)
What is biological oxygen demand?
It determines the amount of dissolved oxygen that is consumed by aerobic biological microorganisms in water. It is measured by the amount of oxygen that is consumed per liter of sample during 5 days of incubation it is in milligrams.
How is the electricity generated in a coal-fired power plant?
Coal is made from dead plants.
In the United States a little about 50%. See http://www.eia.doe.gov for more details.
Simplest version:
Burn the coal, which generates heat. Use the heat to boil water. The steam from the boiling water forces blades on a generator fan to turn, which turns the generator. Electrical current is then produced. This is a gross oversimplification, but you get the point.
More detailed version:
- A machine called a pulverizer grinds the coal into a fine powder.
- The coal powder mixes with hot air, which helps the coal burn more efficiently, and the mixture moves to the furnace.
- The burning coal heats water in a boiler, creating steam.
- Steam released from the boiler powers an engine called a turbine, transforming heat energy from burning coal into mechanical energy that spins the turbine engine.
- The spinning turbine is used to power a generator, a machine that turns mechanical energy into electric energy. This happens when magnets inside a copper coil in the generator spin.
- A condenser cools the steam moving through the turbine. As the steam is condensed, it turns back into water.
- The water returns to the boiler, and the cycle begins again
Coal is burnt and heats water. Water vapor makes a turbine move and generates electricity. When the coal is burnt, poisonous gases are diffused but has no entry in making electricity and pollutes the air.
A coal-fired power station, burns coal to heat water so that it turns into steam. The steam is used to turn turbines. The turbines spin generators which generates electricity. A generator operates by moving coils of wire in a magnetic field, as the wires move, electricity is generated within the wires.
Traditionally, coal is burned to produced heat, gasses, and solid waste. The heat is used to boil water. The steam produced turns a turbine which turns a generator. The generator produces electricity. That technique has an efficiency of 40%. China claims it has developed a technique with 60% efficiency. It will be interesting to find out what it is. China has also claimed that it has discovered an inexpensive way to remove Carbon Dioxide from coal fired electric plants. If so, that is a fantastic break through.
burning coal is used to boil water. The steam the pushes turbine blades, turning the turbine. The turbine is connected to a generator which produces electricity.
-- Coal is burned in air, releasing heat.
-- The heat is used to boil water.
-- The steam is directed through turbine vanes.
-- The turbine spins an electrical generator.
How does algae bloom affect dissolved oxygen?
Nutrients remove oxygen from water either by direct oxidation or through being consumed by plants or animals (bacteria). The potential for oxygen removal is measured by: BOD (biochemical oxygen demand) measures the amount of oxygen that bacteria can remove, COD (chemical oxygen demand) measures how much oxygen can be removed by chemical processes, and TOD (Total Oxygen Demand) is the total of all oxygen removed biochemically and chemically.
Generally, colder water can hold more dissolved oxygen than warmer water. If you make a rough nomograph and plot the same amount of dissolved oxygen for a cold and warm temperature, you will see that the cold water is less saturated (can hold more oxygen) than the more saturated warm water.
Nutrients effect oxygen levels indirectly in a process called eutrophication. If the nutrient happens to be a limiting nutrient (such as phosphate in lakes), then the carrying capacity of the photosynthetic organisms is raised. This allows for a population growth, commonly seen as algal blooms. The population of decomposers is then boosted too, since they feed (decay) on the phytoplankton/algae. As more and more organic material settles to the benthic zone, decomposers increase and need more oxygen for respiration. This results in oxygen depletion in the ecosystem, making life for marine animals such as fish difficult/impossible.
What are the effects of water quality on water related diseases?
Water related diseases fall into two broad categories.
* The first is water born infectious diseases (cholera, PSA infections etc.) These are directly related to water contaminated with pathogens from sewage. Related diseases caused by larger organisms like amoebae and worms can be considered in the same group. In this case the incidence of disease increases as the amount of contaminated water rises and sources of clean water become limited * The second group is water born diseases caused by toxic contaminants (mercury, other heavy metals, benzene, antibiotics etc) As the levels of these materials increase they pass the "no effect" concentrations and stat to overwhelm the bodies ability to handle them (excrete or metabolize) and sicknes occurs. In some cases the body absorbs the contaminant until toxic levels are reached (e.g. bio accumulation of mercury). In these cases as water quality decreases the incidence of impacts increases.
How do fossil fuels create water pollution?
Fossil fuels, even when burned perfectly (natural gas, or methane, burns the best) release carbon dioxide which is a greenhouse gas causing dangerous global warming. Most fossil fuels also release smoke (leading to smog), and they may also release sulfur oxides and nitrogen oxides which contribute to acid rain.
Will reducing our electricity use prevent Global warming?
First, we cannot stop global warming, we can only act to slow the process, hopefully reducing greenhouse gas (GHG) emissions so atmospheric concentrations will stablize and allow the earth's complex systems to find a new balance and, in turn, allow temperature to eventually stop rising and, eventually, start to move in the opposite direction.
Second, the world's population is growing and they will need food. To reduce food supply will only cause greater starvation, mass migration and greater wars over such resources. The greater instability in the world casued by such activities would only result in less focus on global warming as more violent and pressing needs would consume time and money. in short, food could nto and would not ever be the place where global interests would ever tackle global warming.
Third, there is some current concerns that growing interest in and production of ethanol and other biofuels could impact world food supplies by A) reducing levels of corn and other crops because they are being used for fuel production and B) increasing costs of the crops that are still available for food. These impacts would be unintentional so really does not apply to your question. Nevertheless, I believe many would argue this is a serious concern and you will continue to see governments monitor this issue closely, noting adverse impacts on food supplies will result in strong government pushes to other alternative fuels.
A:If we could stop it, would doing so require us to produce less food? It's a simple question. It takes tractors to grow food. Tractors burn fossil fuels. Burning fossil fuels releases carbon dioxide. Carbon dioxide causes global warming. Therefore, producing food causes global warming. Of course, we could also fight global warming by banning cars. But, WILL IT BE ENOUGH? That's my question. If every other source of man-made CO2 emissions was completely BANNED, will that stop global warming. Or, after we give up our cars, our industries, our electrIcity, our natural gas, all the things that make life comfortable and enjoyable, will we STILL have to give up food, which makes life POSSIBLE?! A:Because modern agricultural production requires equipment that burns fossil fuels. As long as we're burning fossil fuels, atmospheric CO2 levels will continue to increase, and temperatures will continue to rise. We can ban cars and trucks, and electricity, but if we don't ban tractors and combines as well, there will always be some carbon dioxide emissions. So, we can SLOW global warming, but we can't STOP it, let alone REVERSE it, unless we ban tractors and combines as well. And THAT will severely restrict food production.Minamata, Japan was the site of one of the worst mercury pollution disasters in history. The Chisso Corporation's chemical factory dumped their methylmercury wastewater into the Minamata Bay. The mercury, through the process of bioaccumulation, ended up in the top fish species, which the Minamata population ate for food. This resulted in thousands suffering from acute mercury poisoning. While many went through neurological breakdown, for years, neither the government nor the company did anything about it. Reparations and cleanup are still an ongoing process, several decades later.
Green space is land that is completely or partially covered with grass, shrubs, and trees that is pleasing to look at. It may contain other vegetation and it is land that is used for recreational purposes in urban environments.
How does pollution affect rainforests?
Severe air, water, and land pollution can cause the rainforest to die out because of a lack of positive growth elements. However, there are some trees in the rainforest that can process pollution into clean elements. Yet, those are the exceptions to the 'norm. The pollutions effect to rainforests destroys plants and animals, as well as the entire ecosystem.
Are there any laws about global warming?
Scientific Laws:
- Carbon dioxide in the atmosphere traps heat.
- Trees remove carbon dioxide from the atmosphere through photosynthesis.
- Burning fossil fuels (coal, oil and natural gas) releases carbon dioxide that has been hidden away for 300 million years.
States' and countries' laws:
- Various Clean Air Acts specify how much pollution is allowed.
- Carbon trading schemes aim to reduce carbon dioxide emissions.
- Carbon emissions are taxed.
What do people think about toxic waste?
toxic waste comes from oils and chemicals left out to long. JUST STOP THE GOSH DANG POLLUTING U STUPID POLLUTERS U MINE AND FARM AND LANDFILL OWNERS DONT DUMP THE GARBAGE IN THE OCEANS RECYCLE IT DOESNT MATTER IF PEOPLE DONT PUT IT IN THE RECYCLING BIN U PUT IT UR SELF AND U WILL MAKE A CHANGE.=]
DISPOSE OF THAT NASTY LIQUID IF YOU WANT TO LIVE!!!!!!!!!!!!!!!!=D
How do you prevent or fight against pollution?
carpool, recycle, dont litter, make sure others dont and reserve water. it will make a difference ??? What do you mean? Oh, GLOBAL WARMING?!?!?! Come on, people! It warmed up in a short time's notice in the times between the Ice Ages! At least, that's me and my brother's theory.
How does energy use effect the environment?
it can never be destroyed or created by Lillian and Nyla ray
What is a chemical ground sterilizer?
It's much different. Most items for sterilisation are packed into a large room which is then sealed and irradiated with high energy x-rays or gamma rays at very high dosage.
Nothing living survives.
A typical irradiation chamber can take more than a ton of dry goods at a time. The biggest can hold more than fifty tons.
Hospital dressing packs, all the bandages and dressings you buy in the pharmacy or supermarket, water for drinking or laboratory use, sterile needles and test tubes, even some foods, are sterilised that way. Clothes and blankets, tentage etc to be sent to aid and emergency situations can also be sterilised with radiation to avoid spreading bugs.
Most foods are sterilised chemically using sulphur dioxide gas for fruits which also helps in ripening, or solutions like potassium metabisulphite (not -ate) for root crops and other vegetables, which you can also use at home.
Buy it as Camden tablets in wine making stores. Home winemakers and commercial vineyards use it to stop fermentation and to sterilise bottles.
I use it on camping trips, along with ordinary household bleach for various sterilisting jobs including drinking water.
Only a small amount of either is required, but a waiting time must be observed to allow all the bugs to be killed using low dosaes that don''t affect the taste too much, normally 15 minutes in warm weather, up to an hour in very cold climates.
I've trekkked on five continents and used the same method everywhere with no problems.
BY GEBREHIWET ABRHAM
MIT ETHIOPIA
What are the long term effects of Chernobyl?
the short term effects were deadly radiation poisoning in the surrounding area and nuclear fallout affecting anywhere downwind of the disaster. Even reaching other countries. 135,000 people had to be evacutedfrom the area if they were within a 20 mile radius.
longer term effects were the rendering of the surrounding land uninhabitable, birth defects due to lingering radiation and a severe mistrust of nuclear power by many of the general public across the world.
Power Systems or Transmission & Distribution
What happens to the water from a decommissioned nuclear power plant?
During the cooling process, the water becomes contaminated with radionuclides – unstable atoms with excess energy – and must be filtered to remove as many radionuclides as possible. The filtered water is then stored in huge steel tanks or released into nearby bodies of water.
Fume is also any gaseous particulate usually referring to an unbreathable noxious off jetting from a Heat worked material..........
What role did Venice's location play in its growth and development?
Venice was right on the sea so settlers could easily trade. Which meant more money for them. From only the smartest kid ever!
