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1. Write an English essay about writing to the mayor about environmental pollution (no less than 80 words)
Human factors: City of toxic particulate matter sources: Firstly, car exhaust. Large vehicles that use diesel are the "culprits" of PM10 emissions, including buses, shuttle buses of various units, and large transport trucks. The source of toxic particulate matter in cities: firstly, automobile exhaust. Vehicles that use diesel are a "repeat offender" in emitting fine particulate matter. Although small cars that use gasoline emit gaseous pollutants such as nitrogen oxides, they are also easily converted into secondary particulate pollutants during foggy weather, exacerbating smog. The first: is automobile exhaust. The large vehicle use diesel is PM10 emissions "repeat", including the big bus, each unit of the train, and large transport trucks. City of toxic particulate matter sources: the first is the automobile tail gas. Emissions of fine particles aggregated consequential offense "is the use of diesel car". Small cars use gasoline while emissions are gaseous pollutants, such as nitrogen oxides, but with fog, is also very easy to translate into two particulate pollutants, aggravate the haze. The exhaust of motor vehicles is the main component of haze particles. The latest data shows that motor vehicle exhaust accounts for 22.2% of haze particles in Beijing, coal combustion accounts for 16.7%, dust accounts for 16.3%, and industry accounts for 15.7%. But with the advancement of automotive technology and the improvement of oil quality, environmental managers have found that motor vehicle exhaust does not play a decisive role in the formation of haze weather. However, as some cities with a large number of ca


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