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Of course, cars are more polluting.
From the perspective of toxic and harmful substance emissions: automobiles are driven by the combustion of fuel, and the combustion of most fuels will produce toxic and harmful gases such as CO and NO, accompanied by a large amount of waste heat discharged into the air; The tram uses electrical energy to produce almost no toxic and harmful substances, and the waste heat generated is negligible compared to the car.
From the perspective of energy: the efficiency of the current automobile engine is about 30%, and the fuel burned by the engine is generally a non-renewable resource; Even if part of the electric energy is thermal power generation, the fuel utilization rate of thermal power generation is about 40% or higher, which is equivalent to 10% of the fuel utilization rate compared with automobile engines. Considering the idle operation of the car, in the case of the car at idle, in order to facilitate the operation, the automobile engine needs to be in an idle state, and the motor of the tram is completely stopped because of the convenience of its control, and the engine idling is not doing work and causing a waste of energy.
To sum up, cars are more polluting than electric cars in terms of toxic and harmful emissions and energy interest rates.
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I think it's motorcycles, first of all, electricity in our country is achieved by burning coal. Trams and now electric cars are actually just a different way of polluting, not necessarily better than diesel locomotives. In addition, motorcycles have a large number of ownership, and when they are discarded, the cost will be more than that of cars.
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Of course, there is pollution from automobiles, but motorcycles are rechargeable and have zero pollution.
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Electric vehicles can reduce air and noise pollution compared to traditional combustion vehicles, but they also have some potential environmental impacts.
Pros:1Reduce exhaust pollution: Electric vehicles do not emit dry exhaust gases, so they do not produce carbon dioxide, sulfur dioxide, nitrogen oxides and other exhaust pollutants and refreshed pollutants.
2.Save energy resources: Electric vehicles use batteries as energy sources, and compared with traditional fuel vehicles, the production and environmental load of batteries are much smaller than those of fuel vehicles such as oil extraction, processing, and transportation.
3.Reduce noise pollution: The engine noise of electric vehicles is small, which can reduce urban traffic noise pollution.
4.Promoting transformation: The development of electric vehicles is in line with the general trend of energy conservation and environmental protection, which is conducive to promoting the transformation of the automotive industry, so as to move the whole society towards a more sustainable development model.
Cons: 1Environmental impact of battery production: Battery production requires the use of a large number of rare metals and toxic chemicals, such as lithium, cobalt, etc., which have a certain negative impact on the environment.
2.Difficulty of batteries**: A large number of waste batteries cannot be effective**, which may lead to toxic heavy metals such as cadmium and lead polluting the environment.
3.Battery renewable resources may be insufficient: The rare metals and rare earth elements used in batteries are limited, and the future renewable resources may face bottlenecks.
4.Pollution from electricity production: Although electric vehicles can reduce tailpipe emissions to zero, tailpipe pollutants such as carbon dioxide, nitrogen, and sulfides emitted during power production may cause harm to the environment.
To sum up, although electric vehicles have some environmental benefits compared with traditional fuel vehicles, there are also some environmental risks, and most of the recent controversies are focused on the problem of poor batteries and batteries.
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Categories: Transportation Tourism >> other means of transport.
Problem description: Is riding an electric car polluting? What's the pollution?
Analysis: 2 Pollutions: Battery and Sound.
While electric vehicles bring convenience to people's travel, the pollution caused by their waste batteries to the environment cannot be underestimated.
Electric vehicles are indeed an environmentally friendly and economical means of transportation, but if the battery and brake problems are not solved, they will also produce new sources of pollution!
During the rush hour, at every intersection, the squeaky brake sound has had an impact on the environment, which is the new pollution produced by electric vehicles, and it is reported that this brake sound can cause great harm to the human nervous system, and can seriously cause people to cause menstrual disease.
Electric vehicle manufacturers should attach great importance to the low-grade brakes should be replaced by high-grade brakes, reduce the brake sound to the minimum decibels, or even no brake sound, so that the electric Quetong bullet train is more environmentally friendly and makes greater contributions to human society.
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<><Are electric vehicles more polluting than gasoline vehicles? Read the data before you speak
Support policies for new energy vehicles from all walks of life, such as unlimited number restrictions, purchase tax reductions and exemptions, local subsidies, etc., have made the sales of new energy vehicles grow by leaps and bounds. Singing all the way at the same time, accompanied by the sound of singing and declining, some people even say that "electric vehicles are more polluting to the environment than fuel vehicles", one stone stirred up a thousand waves, and the controversy of electric vehicles has been endless.
The reason why new energy vehicles will be given the green light is because of its important role in energy conservation and emission reduction.
Especially at the moment when environmental pollution is seriously overwhelmed, for long-term development, energy conservation and emission reduction are imperative. However, electric vehicles are frequently deducted from the pot of "dirty electricity", just because China's current electricity consumption is mainly coal-burned, many people think that this kind of electricity is upside down, and finally the environmental pollution is higher than that of fuel vehicles.
But in fact, the latest research shows that electric vehicles emit less carbon dioxide than gasoline engines, even with the dirtiest electricity.
Even in Poland and Germany, which are the largest emitters of greenhouse gases, electric vehicles emit more emissions than gasoline vehicles during manufacturing and use. Overall CO2 emissions from electric vehicles have decreased by 85% in Poland and 85% in Sweden. At the same time, the sustainability of electric vehicles will be improved along with the advancement of battery technology, and more batteries will be used for power storage or utilization.
Nowadays, all walks of life have doubts about electric vehicles, including electric vehicles have not significantly improved the environment, all because the proportion of electric vehicles is too low, and the annual sales in 2016 were only 500,000, accounting for the total sales, and it happens that the proportion of the latest sales in Europe is also pitiful. However, research shows that with the rapid decarbonization of the EU's electricity mix, electric vehicles (including manufacturing emissions) will emit less than half of the CO2 emissions on average by 2030.
The argument that some rare metals will restrict the development of electric vehicles is also untenable, and key metals in batteries such as cobalt and lithium will not stop the transition from combustion engine vehicles to electric vehicles.
Because in the case of lithium, the reserves could last for about 185 years. However, the development of electric vehicles will inevitably lead to an increase in the demand for such metals, and there may be investment in new mines or new processes in the future, and there will be no longer ** restrictions.
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Categories: Education, Science, >> Science & Technology.
Problem description: What should I do with the waste battery of an electric bicycle? Where does the domestic sewage go? How to deal with domestic garbage?
Analysis: If the battery on an electronic meter is buried in the land, it can make one cubic meter of soil lose its cultivation value.
An ordinary dry cell battery can make 600 cubic meters of water undrinkable if it is abandoned in water.
Electric bicycles generally use lead-acid batteries, and like other batteries, they also contain a lot of toxic heavy metals in the battery waste, which may cause much less pollution than the exhaust of the car.
At present, there is no effective waste battery processing capacity in China, and the waste batteries are generally discarded as garbage. Theoretically, it is possible to refine and reuse various metals in the battery, but the cost is very high and there is no economic benefit per mu, so no one wants to get it.
At present, half of the domestic sewage can be harmlessly treated, and half is directly discharged; A small part of household waste is used to incinerate or make building materials, and most of it is still piled up and landfilled.
It can be said that I am completely destroying the ecology now, and the reason is one word "money".
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A pure electric vehicle is zero emission in its own right, and that alone is zero pollution? Doesn't that make people laugh out of their big teeth? And isn't electricity all the best in power plants?
If it is wind power, hydropower, nuclear power ......No further ado, yes! Pure yes! The problem is that coal, oil, gas and other power generation are seriously polluting!
You can't just look at the charging part, you have to look at it as a whole to be correct!! Therefore, this argument is untenable and has no scientific basis! It's no different from gasoline and diesel cars!
In fact, it is not as good as gasoline and diesel cars! It is not easy to charge, run less kilometers, and the pollution after scrapping cannot be cleaned up, etc. Today, there are two sources of oil and gas, and gas is also the first to be in place (oil is not in place), so that the car has close to zero pollution, and the annual inspection report is evidence.
In other words, as long as the oil and gas are in place, the car can have zero emissions, and it's as simple as that! Previously, a lot of effort was put into the engine, and it was mistakenly believed that the engine was the source, and it only treated the symptoms but not the root cause (not the symptoms). The oil is not well controlled, and the gas has never been treated (which is completely wrong, do not forget that it is also the source).
Therefore, cars with oil and gas in place are highly polluting. Note: The oil and gas are not in place, even if the car has just come off the assembly line, it has not escaped pollution.
Think about it, pure electric vehicles have no value in existing!!
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Vehicles that use electricity certainly do not emit polluting elements, and there are more electric vehicles currently launched.
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Hello, when driving, pure electric vehicles do not have any pollution, but the power generation itself is polluting.
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Power generation is polluting, manufacturing batteries is polluting and more polluting. Therefore, pure electric vehicles have zero emissions in the driving state, which cannot be regarded as zero pollution.
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Driving is indeed zero pollution, but the electricity used for charging is still polluting, so it is not considered zero pollution.
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Hello, as long as it is a car, there will be pollution, the parts on the car are made of raw materials, and the tires are made of rubber. It is charged with electricity, and thermal power generation must be polluted, and waste batteries will also be polluted.
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Pure electric vehicles do not produce any pollution during driving. But lithium batteries themselves are an unavoidable pollution.
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Hello, although the current state strongly supports electric vehicles. But electric vehicles are also polluting when they are manufactured. Most of the electricity used is also thermal power. If there are many long distances, it is not recommended to buy a pure electric vehicle.
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Yes, the electric vehicle itself is environmentally friendly and "zero pollution", but the power generation process is not environmentally friendly.
The so-called "zero emission" of the current electric vehicle is only limited to its use stage, and there is no emission during the driving of the electric vehicle, but the electricity it consumes is a secondary energy source, which mainly comes from thermal power generation at this stage, and a large amount of coal consumption will have an adverse impact on the environment. In addition, pollutant emissions are mainly concentrated in the production, transmission, storage and transportation stages of energy, and its environmental protection in the whole life cycle is even worse than that of natural gas vehicles.
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In fact, this problem cannot be said in the same way, because his battery is the biggest problem, and I don't know what they think.
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