澳门地区大气污染特征及其变化规律

Characteristic of Atmospheric Pollution in Macao in 2007-2008

根据澳门特别行政区地球物理暨气象局的实时观测资料,对2007-2008年澳门地区空气质量及大气污染特征进行了分析,研究了澳门地区大气污染变化与澳门地区气象条件之间的变化规律,同时与北京、上海等城市的大气污染情况进行了分析.结果表明,澳门地区PM10、SO2和NO2年日均值均达到《环境空气质量标准(GB3095-1996)》二级标准,SO2和NO2接近《环境空气质量标准》一级标准,但在冬季和秋季仍然存在一些污染严重的时段.澳门地区大气中的首要污染物主要是PM10和NO2;澳门地区大气污染情况与气象要素关系非常密切,是引起污染物浓度变化的主要原因.

To investigate the variation of air pollution and the relationship of the variation and its influence factors in Macao,the ambient air quality and atmospheric pollution characteristic in Macao in 2007-2008 were analyzed according to the real time monitoring data of ambient air quality by Macao Meteorological and Geophysical Bureau.The variety pattern of atmospheric pollution and meteorological condition were investigated comparing with other cities such as Beijing,Shanghai,Guangzhou,and Zhuhai.The results show that the annual daily concentration mean of PM10,SO2,and NO2 in Macao during July,2007 to June,2008 agrees with the second level of the national ambient air quality standard（NAAQS,GB3095-1996）.The annual daily concentration mean of SO2,and NO2 close to the first level of NAAQS.there are some severe pollution periods such as winter and autumn.The top air pollutants in Macao are inhalable particulate（PM10）and NO2,The meteorological conditions have a close connection with air pollution in Macao,and are the principal factor to cause the variation of pollutant concentration.