Air PM_2.5and PM₁₀ samples that were concurrently collected during March 5-14, 2008 were analyzed in their pollution level, daily changing trend, the ratios of PM_2.5/PM₁₀, and influent factors with results indicating that the daily average concentration of PM₁₀ was 220.0 μg/m³, 46.7% more than the second national standard (150 μg/m³), and that the daily average concentration of PM_2.5 was 132.5 μg/m³, 103.8% more than the US’s standard. This reveals a severe atmospheric particle pollution in this area. PM_2.5 which is more harmful to human is a major component of PM₁₀, about 63.6% on average. PM_2.5 and PM₁₀ concentration has a good correlation with humidity and wind velocity, increasing with the increasing of humidity and the temperature, and decreasing with the increasing of wind velocity. The meteorological conditions plays a key role in atmospheric particle pollution. This paper presents a reference to prevent air particulate pollution and to make policies.