淄博市污染气象特征与大气环境容量

Air Pollution Meteorological Characters and Atmospheric Environment Capacity in Zibo City

利用淄博市环境监测站2002—2004年间的主要大气污染物浓度和同期气象资料,综合分析了淄博市大气环境污染状况及演变特征,用A-P值法对大气环境容量进行测算。结果表明该市主要污染物为可吸入颗粒物(PM10)和二氧化硫(SO2),其实际排放量均高于理想大气环境容量。此外,引入美国NOAA后向轨迹模式(HYSPLIT4),分析了影响淄博市强污染天气的外来气团,确认它们是源于东北地区和内蒙古东部的偏北气流,以及蒙古国中部的偏西气流。这些结果为今后制定城市发展规划,控制和防治大气污染提供了科学依据。

Based on the air pollution data and meteorological data from 2002 to 2004, the air pollution characters and trend in Zibo City were analyzed. The atmospheric environment capacity of pollutants was estimated using the A-P method. Investigation indicates that the key air pollutants are inhalable particle matter（ PM10 ） and sulfur dioxide（ SO2 ） ,and their emissions have both exceeded the atmospheric environment capacity. In addition, the possible origins of air masses from pheripheral areas on heavy air pollution days were calculated using the NOAA HYSPLIT4 backward trajectory model, and results suggest that non-local origin pollutants were mainly transported by the northerly flow from Northeast China and eastern Inner Mongolia and the westerly flow from central Mongolia. All these findings provide a scientific basis for making plans of city＇ s development as well as for bring air pollution under control in the future.