关于某种环境问题的形成和危害及治理方式的介绍高中水平就可以,不要太深,注意详细一点,长一点没有关系.注意！不是演讲稿，不是作文，只是要一篇资料而已！资料而已！

关于某种环境问题的形成和危害及治理方式的介绍高中水平就可以,不要太深,注意详细一点,长一点没有关系.注意！不是演讲稿，不是作文，只是要一篇资料而已！资料而已！
关于某种环境问题的形成和危害及治理方式的介绍
高中水平就可以,不要太深,注意详细一点,长一点没有关系.
注意！不是演讲稿，不是作文，只是要一篇资料而已！资料而已！

关于某种环境问题的形成和危害及治理方式的介绍高中水平就可以,不要太深,注意详细一点,长一点没有关系.注意！不是演讲稿，不是作文，只是要一篇资料而已！资料而已！
Other planets have sunlight,but the Earth is the only planet we know that has air and water.Without air and water,the Earth would be unable to sustain life.
A diverse community of plant and animal life has thrived on this planet for millions of years,sustained by the sun and supported by the soil,water and air.
Definition of air pollution
Air pollution occurs when the air contains gases,dust,fumes or odour in harmful amounts.That is,amounts which could be harmful to the health or comfort of humans and animals or which could cause damage to plants and materials.
The substances that cause air pollution are called pollutants.Pollutants that are pumped into our atmosphere and directly pollute the air are called primary pollutants.Primary pollutant examples include carbon monoxide from car exhausts and sulfur dioxide from the combustion of coal.
Further pollution can arise if primary pollutants in the atmosphere undergo chemical reactions.The resulting compounds are called secondary pollutants.Photochemical smog is an example of this.
The following items are commonly used as pollution control devices by industry or transportation devices.They can either destroy contaminants or remove them from an exhaust stream before it is emitted into the atmosphere.
Particulate control
Mechanical collectors (dust cyclones,multicyclones)
Electrostatic precipitators
Baghouses
Particulate scrubbers
Scrubbers
Baffle spray scrubber
Cyclonic spray scrubber
Ejector venturi scrubber
Mechanically aided scrubber
Spray tower
Wet scrubber
NOx control
Low NOx burners
Selective catalytic reduction (SCR)
Selective non-catalytic reduction (SNCR)
NOx scrubbers
Exhaust gas recirculation
Catalytic converter (also for VOC control)
VOC abatement
Adsorption systems,such as activated carbon
Flares
Thermal oxidizers
Catalytic oxidizers
Biofilters
Absorption (scrubbing)
Cryogenic condensers
Vapor recovery systems
Acid Gas/SO2 control
Wet scrubbers
Dry scrubbers
Flue gas desulfurization
Mercury control
Sorbent Injection Technology
Electro-Catalytic Oxidation (ECO)
K-Fuel
Dioxin and furan control
Miscellaneous associated equipment
Source capturing systems
Continuous emissions monitoring systems (CEMS)