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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
A safe work environment is one in which you have an acceptably low chance of being injured or made ill as a result of the work you or others are doing in your place of employment.
How are climate change and global warming monitered?
Climate change and global warming are monitored through a variety of methods such as satellite observations, ground-based measurements, and climate models. Key indicators include temperatures, sea levels, and greenhouse gas concentrations. These monitoring efforts help scientists understand trends, assess impacts, and make projections for the future.
What problem is air pollution to cities?
The most common "city pollution" people think of is Photochemical Smog. I quote: "Photochemical smog is an atmospheric condition that produces severe eye irritation and poor visibility, to name just two of the effects. Three ingredients -- energy from a light source (ultraviolet), hydrocarbons, and nitrogen oxides -- are needed for photochemical smog to be formed. Two of those components are produced through the burning of fossil fuels, most notably automobiles. Photochemical smog is also sometimes known as "oxidizing smog", in that it has a high concentration of oxidizing agents. Ozone is a common oxidizing agent found in photochemical smog. Another type of smog, "reducing smog", has high concentrations of sulfur dioxide, which is a reducing agent. Its presence has historical significance in studies done in places like London, which used sulfur-containing coal as its main energy source."
Basically your car burns fuel in air/oxygen. We all know CO2 is one product of this combustion, but depending on the air to fuel (A/F) ratio, other compounds are also formed. The perfect stoichiometric point for gasoline is 14.7; or 14.7 pounds of air to 1 pound of gasoline. Any more air and it's a lean ratio, any less and it's a rich ratio.
If the combustion was perfect, you would get your hydrocarbon gasoline combustion converted into heat, energy, CO2, N2, and H2O. But the combustion never is perfect, so you also get:
- Carbon monoxide (CO) is a poisonous gas that is colorless and odorless.
- Hydrocarbons or volatile organic compounds (VOCs) are a major component of smog produced mostly from evaporated, unburned .fuel.
- Nitrogen oxides (NO and NO2, together called NOx) are a contributor to smog and acid rain, which also causes irritation to human mucus membranes.
NO2 is the main culprit of Photochemical Smog. It can also cause acid rain and other problems. NOx can react with atmospheric oxygen to produce tropospheric Ozone (very bad). Unlike the the ozone up in the stratosphere protecting us, ground level ozone is smog, and harmful.
Your car's catalytic converter is an amazing invention from the 1970s that helps reduce these emissions. The reduction catalyst is the first stage of the catalytic converter. It uses platinum and rhodium to help reduce the NOx emissions. When an NO or NO2 molecule contacts the catalyst, the catalyst rips the nitrogen atom out of the molecule and holds on to it, freeing the oxygen in the form of O2. The nitrogen atoms bond with other nitrogen atoms that are also stuck to the catalyst, forming N2. For example:
2NO => N2 + O2 or 2NO2 => N2 + 2O2
Many adults and children pollute. They litter by throwing cigarettes, soda cans, wrappers and so on. They would pollute because they probably do not think of what it could cause for nature and the environment when it causes a lot of problems. Maybe if people would think of what it does then they would not do what they are doing now.
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Quite right - and sadly I don't think they care either.
BTW I took the liberty of adding the leading "w" to "wrappers". The original had omitted it, conjuring up a very surreal vision, vision, vi vis vision...
Are dragonflies harmful to the environment?
No, dragonflies are not harmful to the environment. In fact, they are beneficial insects as they help control populations of mosquitoes and other flying insects. Dragonflies are also important pollinators and indicators of the overall health of aquatic ecosystems.
How much pollution does a nuclear power plant give off in 5 days?
I'm not sure that it gives off any. Mind you, evry 20 years or so there's all the radio-active junk from the decommissing process to be got rid of. Whether you call that pollution or not depends or your definition.
What are the steps to be taken to summarize the passage?
To summarize a passage, you should first read it carefully and make sure you understand the main ideas and key points. Then, identify the main thesis or argument of the passage and determine the supporting evidence or examples used. Finally, condense the main ideas into a concise statement that captures the essence of the passage without including unnecessary details or examples.
Pollutant from motor car exhaust that causes mental disease is?
one of the main pollutants from motor car exhaust that can contribute to mental disease is fine particulate matter (PM2.5). These tiny particles, measuring 2.5 micrometers or smaller, can be inhaled into the body and can penetrate the bloodstream, potentially affecting the brain and causing cognitive impairments or mental health disorders.
What are the 5 most polluting things?
The five most polluting things are:
- Fossil fuel combustion, which releases greenhouse gases and air pollutants like carbon dioxide and nitrogen oxides.
- Industrial processes, including chemical manufacturing and mining, which generate toxic air and water emissions.
- Deforestation and land use changes, which contribute to loss of biodiversity and release large amounts of carbon dioxide into the atmosphere.
- Agriculture, particularly livestock production, which emits methane and contributes to water pollution through the use of fertilizers and pesticides.
- Waste disposal, such as improper management of solid waste and wastewater, which can contaminate soil, water, and air.
When the atmosphere is contaminated by pollutant from human and natural sources it is called?
primary pollution
How does pollution affect trade?
Economic activities contribute to pollution. The effect is related to people driving vehicles to go to work and to deliver goods. This in return is responsible for creating toxins in the air. Economic activities are also affected by pollution due to situations like oil spills in the oceans. People who depend on the ocean as their source of income, for example fisherman, suffer from oil spills.
Nonpoint source (NPS) pollution is water pollution affecting a water body from diffuse sources, such as polluted runoff from agriculturalareas draining into a river, or wind-borne debris blowing out to sea. Nonpoint source pollution can be contrasted with point source pollution, where discharges occur to a body of water at a single location, such as discharges from a chemical factory, urban runoff from a roadway storm drain, or from ships at sea.
Give an essay about How can we stop water pollution?
Water pollution is a growing concern that requires immediate action. To mitigate this issue, several measures can be taken. Firstly, stricter regulations must be enforced to control industrial waste disposal and encourage the use of cleaner technologies. Secondly, public awareness campaigns should be conducted to educate people about the harmful effects of water pollution and the importance of responsible waste management. Lastly, investment in wastewater treatment plants and infrastructure improvement is crucial to filter out pollutants before they enter water bodies. By implementing these steps, we can halt water pollution and safeguard our vital water resources.
Is there a high amount of pollution in Kenya?
The level of pollution in Kenya varies depending on the region and the type of pollution. In cities like Nairobi, air pollution is a concern due to vehicle emissions, industrial activity, and open burning of waste. Water pollution is also an issue in some areas due to inadequate sanitation and industrial waste. However, Kenya has taken steps to address these issues through policies and measures to mitigate pollution and promote sustainable development.
What pollution is from cement factories?
Pollution from cement factories includes emissions of particulate matter, sulfur dioxide (SO2), nitrogen oxide (NOx), and carbon dioxide (CO2). These emissions contribute to air pollution and can have detrimental effects on human health and the environment. Cement factories are also known for consuming large amounts of water and generating wastewater that can contain pollutants such as heavy metals and chemicals.
What heavy metals cause heavy metal poisoning?
Common heavy metals that can cause heavy metal poisoning include lead, mercury, arsenic, cadmium, and chromium. These metals can accumulate in the body over time and lead to various health problems, including damage to the brain, kidneys, liver, and other organs. Exposure to heavy metals can occur from sources such as contaminated water, air pollution, certain foods, and occupational hazards.
What is the role of environmental engineer?
The role of an environmental engineer include designing, planning, and performing environmental health hazards utilizing various engineering principles. The role includes waste treatment, site remediation and pollution control.
What is a good introduction for a speech about pollution..Please give an example?
pollution is already bad enough, but we got to put a stop to it to create a better future.
Why is air pollution a problem?
VOCs (Volitle Organic Compounds) pollution divided into air pollution, water pollution, sound pollution...with refer to all those pollutions,they all can threat all life form. for example, if water is polluted, the fish inside the water will drink the dirty water maybe containing mercury or what, after that fish caught to become our meal, we will die cox of eating fish pollluted with mercury,
Is cellophane a kind of polythene?
Polyethylene or polythene (IUPAC name poly(ethene)) is a manmade plastic made from ethylene. Cellophane is a natural material made from cellulose with some plasticizers added for flexibility. They are two separate compounds.
The two compounds can be made into similar products such as food wrap.
A human cannot digest wood. Small amounts of wood (such as a pinch of sawdust)will eventually pass though the digestive system without doing you any harm. Larger amounts could give the eater problems.
Treated woods might be harmful.
What will happen if giraffes overpopulate?
After they become extinct, the plants grow and become overpopulated. The plants start to die off. Anything that eats a giraffe will die of starvation. Also, Anal beads will skyrocket in popularity.
What animal was affected by the use of DDT to point of becoming an endangered species?
The Bald Eagle, and other raptors such as the Peregrine Falcon, and Osprey populations were devastated by DDT. The long term exposure nearly wiped them out. Many other birds were affected as well, Robins in one instance were killed outright on a campus when the trees were sprayed to protect them from a disease. But the raptors suffered the worst exposure, the DDT stayed in the food chain creating a domino effect, so they ingested it in greater quantities. For more details, please see the sites listed below.
