【摘要】 2005年对上海市闸北区空气中可吸入颗粒物(PM₁₀——空气动力学当量直径小于10μm的颗粒物的总称)的污染状况进行了一年的连续监洲。结果表明：全年各月PM₁₀污染均以2级为主,占总样本数的67．6％；其次是1级占20．O％,3级占11．0％,4级占1．4％。全年空气质量状况最好的为9月份,最差为11月份。PM₁₀浓度与CO和NO₂浓度呈现出显著的相关性,说明机动车尾气是该区域PM₁₀的主要来源；PM₁₀污染程度还明显地受到降水、气温、气压、风向、风速、相对湿度等气象条件以及北方沙尘暴的影响。更多还原

【Abstract】 Ambient air pollution of Inhalable particle(PM₁₀,Particles with aerodynamic equalivent diameter lower than 10μm) were mon- itored continuously in Shanghai Zhabei Area in 2005.Results indicated that,during the whole year,the monthly pollution level of PM₁₀ stayed mainly class 2 with 67.6%,the second was class 1 with 20.0%,the third was class 3 with 11.0%,the fourth was class 4 with 1.4%.The seasonal variation showed that the best air quality occurred in September while the worst occurred in November.PM₁₀ concentration correlated significantly to CO and NO₂,which demonstrated that vehicle exhaust might be the predominate sources of PM₁₀.It was also found that PM₁₀ pollution was obviously associated with such meteorological conditions as precipitation,atmospheric temperature,atmospheric pressure,wind direction,wind speed and relative humidity,and external transportation like dust storm in north China.更多还原