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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

Why does pollution have to be a issue?

well of coarse chinas pollution has to be an issue because other wise no one would try to help them and they would never be a cleaner place. i we could all pitch in and help out, im sure we could improve chinas air and waters. im doing an essay in school about chineses pollution and it is no joke. it causes cancers, defects, and all sorts of things i had no clue it did. chinas pollution should be an issue because the world must know what to do to help them.

What are positive and negative effects of acid rain?

If acid rain has got negative affects, it also has some positive ones.

1) It helps 2 slow down global warming.

2) It can lessen the affects of pollution.

3) It reduces green house gases.

Negative:

1) Destroys crops

2) People sick.

3) Animals die.

4) Surroundings get dangerous and harmful

BB Thanx

What causes car polution?

The principle pollutant produced by a car is carbon dioxide. The average car produces about 3 to 4 kg of CO2 for each liter of gasoline or diesel used.

Cars also lose some small amounts of oil and ethylene glycol to the roads which is eventually washed into the waterways

Aside from the car body itself which is mostly recyclable metal, a car produces some solid waste - each tire sheds about 0.25 of its weight as rubber fines. Cars also stir up road dust asa pollutant.

A funnel-shaped depression of limestone dissolved by rain is called a cave?

While a funnel-shaped depression of limestone eroded by rainwater is called a limestone pavement or a doline, a cave is a naturally occurring underground void typically formed through chemical weathering and erosion processes such as the dissolution of limestone by acidic groundwater.

How has acid rain affected North Carolina?

Acid rain in North Carolina has led to damage to forests, water bodies, and wildlife due to increased acidity in rainfall. It has also contributed to the deterioration of buildings and statues. Efforts have been made to reduce emissions that cause acid rain and mitigate its impacts.

What country litters the most?

China is reported to be the country that litters the most, with a significant amount of plastic waste entering the ocean each year. The Chinese government has taken steps to address this issue, including bans on single-use plastics in certain regions.

Why it is important to monitor greenhouse gases?

Monitoring greenhouse gases is important because they contribute to global warming and climate change. By constantly monitoring their levels, we can assess the impact of human activities on the environment, track progress in reducing emissions, and inform policies and strategies to mitigate their effects and promote sustainability.

What are the effects of water pollution on man and his environment?

Water pollution can lead to health issues in humans such as gastrointestinal problems, skin diseases, and reproductive issues. It can also harm aquatic life, disrupt ecosystems, and contaminate drinking water sources, posing a threat to both human health and the environment. Efforts to reduce water pollution are crucial to protect both man and his surroundings.

What impact does the ecosystem have on humans?

Ecosystems provide essential services to humans, such as clean air, fresh water, food, and resources for medicine. They also regulate the climate and provide recreational opportunities. Human activities can disrupt ecosystems, leading to negative impacts on our health and well-being. Overall, a healthy ecosystem is vital for supporting human survival and quality of life.

What are the major causes of air pollution in Eastern Europe?

Major causes of air pollution in Eastern Europe include industrial activities, coal power plants, vehicle emissions, and biomass burning for heating. These activities release pollutants such as sulfur dioxide, nitrogen oxides, particulate matter, and volatile organic compounds into the air, leading to poor air quality and health issues in the region.

How is ozone a secondary air pollutant?

A secondary pollutant is one that is not directly emitted by a point source. Ozone is not directly emitted - it requires the sun to form. It forms as a result of direct pollutants such as NO2 and volatile organic compounds.

Where in China has the most noise pollution?

Major cities in China, such as Beijing, Shanghai, and Guangzhou, tend to have high levels of noise pollution due to heavy traffic, construction activities, and large populations. Additionally, industrial areas and densely populated urban centers are also prone to significant noise pollution in China.

Does stormwater runoff affect the biosphere?

Yes, stormwater runoff can negatively impact the biosphere by carrying pollutants such as sediment, chemicals, and nutrients into water bodies. These pollutants can harm aquatic ecosystems, leading to reduced water quality, loss of biodiversity, and disruption of natural habitats. Managing stormwater effectively through techniques like green infrastructure can help minimize these impacts.

Is it true that air pollution from industry often causes rainwater to become acidic?

Yes, industrial air pollution can lead to the release of sulfur dioxide and nitrogen oxides, which react with water vapor in the atmosphere to form sulfuric and nitric acids. When these acidic pollutants combine with rainwater, they can lead to acid rain, which can have harmful effects on the environment, including ecosystems and water bodies.

What is the biggest source of air pollution?

The biggest sources of air pollution include transportation (e.g. cars, trucks, airplanes), industrial activities (e.g. factories, power plants), and agriculture (e.g. livestock production). Energy production and use also contribute significantly to air pollution.

When did air transport start to grow?

Air transport grew dramatically from the 1930s, with the development of a mail-transport system by the U.S. Postal Service. Mail carriers then quickly expanded to carry passengers and cargo to augment their airmail income.

What is photochemical smog and where is it usually found?

Photochemical smog is a type of air pollution formed when sunlight interacts with pollutants like nitrogen oxides and volatile organic compounds in the atmosphere. It is typically found in urban areas with high levels of traffic, industrial activity, and sunlight, leading to the formation of harmful ozone near the Earth's surface.

How may the increase of air pollution in the Earth's atmosphere cause global warming?

Air pollution would not cause global warming. Pollution of our air is rarely done with colorless gases. Sulfur Dioxide, for example has some color. These gases would cause an effect called global dimming. This increases the albedo effect and would cool the planet.

Water vapor and CO2 cause the warming our planet. Most of this is very natural (over 99%). The addition of CO2 to our atmosphere is believed to cause some level of warming.

Why is air pollution more of a problem for people taking part in sports?

During exercise, people tend to breathe more deeply and rapidly, causing them to inhale more air pollutants at a faster rate. This can lead to greater exposure to harmful particles and chemicals present in polluted air, which may negatively impact respiratory function and performance during physical activity. Additionally, exercising outdoors in polluted areas can increase the risk of developing respiratory symptoms and other health issues.

What pollutants are released from fossil fuel combustion?

Fossil fuel combustion releases pollutants such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter, and volatile organic compounds (VOCs). These pollutants contribute to air pollution, smog formation, acid rain, and climate change.

What are green house gases?

A greenhouse gas is an atmospheric gas that absorbs and retains energy from infrared radiation. Greenhouse gases must have at least three atoms, to vibrate and turn the radiation into heat.

Energy from the sun heats the earth's surface and atmosphere, which drives the earth's weather and climate. The earth's surface radiates some of this solar energy back into space. Certain atmospheric gases are called greenhouse gases (GHGs) because they help trap some of the outgoing energy, retaining heat somewhat like the glass panels of a greenhouse.

Water Vapor is the primary greenhouse gas and makes up about 75 to 80 percent of all warming.

Carbon Dioxide is the second most common and makes up about 5 to 25% of the warming. Man is a contributor to this gas.

Other gases include virtually all gases with three or more molecules in them.
Some examples of the gases are:-

  • Most carbon oxides like carbon dioxide
  • Hydrocarbons like methane
  • Water Vapor is, by far, the most common (90%)

These gases are present in the atmosphere and the reflect the terrestrial radiation emitted by the Earth at night. They help in maintaining warm temperature and their absence can cause severe temperature drop resulting in unsuitable conditions for life to survive. But too much of it can cause global warming.

When you get down to the actual factors. A gas that is considered a greenhouse gas is any gas that has three or more atoms in each molecule. Oxygen has two molecules and therefore does not have the mass to hold energy, while O3 (Ozone) has three and can hold more energy.

How can mayflies tell us about water pollution?

Mayflies are sensitive to changes in water quality, so their presence or absence can indicate the health of a water body. High levels of pollution can harm mayfly populations, leading to declines in their numbers. By studying mayflies in a water system, scientists can assess pollution levels and overall ecosystem health.

Is it possible to construct a heat engine that creates no air pollution?

No, it is not possible to construct a heat engine that will not expel heat in to atmosphere. according to second law of thermodynamics, all the practical heat engines absorb heat from the source, convert a part of it in to mechanical work and reject the remainder to the cold body or atmosphere. hence, no heat engine can operate with single source for conversion in to mechanical work without expelling heat to the atmosphere. in other words, their must be a temperature difference between the hot and cold bodies (source and sink) for the conversion of heat in to mechanical work.

Answer:

Hot air is generally not considered a pollutant. Any system that creates mechanical or electrical energy without using fuel would be considered pollution free.

A Sterling Cycle engine can use waste (recovered) heat to create mechanical energy. This creates no additional pollution and in fact, as it achieves higher efficiency in the original system, reduces additional fuel use and its associated pollution.

Electricity can be generated directly from waste heat by thermocouples of dissimilar metals, again increasing efficiency.

Waste heat can be used to boil water to steam for propelling turbines. This recovery creates no additional pollution.

Steam from geothermal sources or from solar arrays can alo power engines and turbines without pollution.

Is carbon dioxide air pollution why?

Yes, carbon dioxide is considered air pollution when it is released in excessive amounts into the atmosphere. This is because it is a greenhouse gas that contributes to global warming and climate change. While carbon dioxide is essential for life on Earth, human activities, such as burning fossil fuels, have led to an overabundance of it in the atmosphere, causing environmental problems.

Is cigarette smoke air pollution why?

Yes, cigarette smoke is considered a form of air pollution because it releases harmful chemicals and particulate matter into the air when it is emitted. These pollutants can have negative effects on human health and the environment.