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Fossil fuel engines produce the most emissions
- Diesel, gasoline, petrol and natural gas-powered buses all emit carbon dioxide, from the burning of fossil fuels (coal, oil and natural gas).
- They also emit nitrogen, which is harmless.
- Other emissions are nitrous and sulphur oxides which cause acid rain
- Water vapour
- Cyclic aromatic compounds, aldehydes and ketones from reforming processes in the combustion area
- Fuel losses vaporize to produce hydrocarbon emissions
- Alcohols from the windshield cleaner
Hydrogen (as a combusted fuel) powered vehicles emit pure water and heat.
Buses powered by fuel cells emit pure water, heat, and oxygen, but still require gaseous hydrocarbon gases or hydrogen to operate.
Most electric buses emit no gases at all except for alcohols from the windshield solutions, but some of the batteries used for storage may have emissions.
- Lead acid batteries can leak hydrogen sulfide gas which is toxic and hydrogen gas which is explosive.
- Lithium-ion batteries have zero emissions, but there are polluting elements in the production process, and the batteries do produce heat
- Some trolley buses are still in use which have no on board power source but draw power from overhead lines. These are essentially pollution free
Some cars are powered by compressed air or flywheel energy storage and these technologies may be available for buses in the future and be essentially clean
What else can I help you with?
Can gases emit radiation?
Yes, gases can emit radiation. When a gas is heated, it can emit thermal radiation in the form of light. Additionally, certain gases can absorb and emit specific wavelengths of radiation, such as in the process of fluorescence or phosphorescence.
Why elements in gaseous state emit radiation?
They do not! Most gases do not emit radiation.
What are massive celestial bodies of gases that emit heat and light by radiation?
Massive celestial bodies of gases that emit heat and light by radiation are stars. They are primarily composed of hydrogen and helium gases, and the nuclear fusion reactions occurring in their cores generate the heat and light that they emit.
What gasses are you emitting?
Humans emit carbon dioxide by breathing. They also emit carbon dioxide by belching and they emit methane by farting.
what is the definition of greenhouse gas?
Greenhouse gases (GHG) are any gas or types of gases that trap, absorb and emit heat.
Is emit a noun or a verb?
The word 'emit' is a verb (emit, emits, emitting, emitted), meaning to give off, or send out.Example: The valve will emit steam when the water boils.The noun forms for the verb to emit are emitter and emission.
Vents that emit only hot gases and vapors are called?
Those vents are typically called fumaroles. Fumaroles are openings in the Earth's crust that emit gases, steam, and heat, usually associated with volcanic activity.
What Natural factors increase Greenhouse Gases?
Rotting trees and vegetation emit carbon dioxide and methane, both greenhouse gases.
What are the two main gases in a volcanoes emit?
Steam, Sulfur dioxide, Carbon Dioxide.
Why are charcoal grills unsafe to use indoors?
Because they consume oxygen and emit gases.
Would nuclear power effect global warming?
No, because it does not emit greenhouse gases
Name three different things that are emitted from volcanoes?
Volcanoes emit several gases, and not very nice ones (hence the reason that nothing living can exist inside the crater of a volcano). Two gases that volcanoes emit that are NOT poisonous include water and carbon dioxide. On the other hand, they also emit nasty gases like sulfur dioxide.
