On November 4, 2013, haze weather occurred again in Harbin, with the comprehensive air quality pollution index AQI exceeding 340 and PM2.5 reaching over 300. PM2.5

(1) The increase in cars has led to the emission of a large amount of smoke and dust into the air from car exhaust (reasonable)

(2) Use administrative means to ban small boilers and implement centralized heating in order to Reduce the burning of coal

Test question analysis: The cause of haze is related to the increase in coal burning for heating in winter and the burning of straw around cities. It is also related to the increase in cars that cause car exhaust to be emitted into the air. A large amount of smoke and dust is related; in order to alleviate the smog, those who do not use heating companies but burn their own boilers should use administrative measures to ban small boilers and implement centralized heating to reduce coal combustion.