| The monitoring data of dust fall in Nantong was analyzed during the year from 2004 to 2009. The results indicated annual average values of dust fall in urban area reached the standard of air quality and showed a wave trend in the six years. The monthly values were high from March to July and showed dust fall pollution level as follow as residential area＞industrial zone＞commercial and traffic area＞cultural and educational area. Some suggestion was made for improvement environment such as to upgrade urban enterprise process, to leave the coal boiler off, to take dust airtight storage for building materials at construction and transportation, to remove waste in time and wash construction vehicles and road promptly, to increase the city's green area and road pavement as well as try to avoid road excavation. |
