校园大气中TSP、PM₁₀、PM_2.5的浓度监测与分析

Concentration Monitoring and Analysis of TSP, PM₁₀ and PM_2.5 in the Campus Atmosphere

摘要: 校园大气质量与学生的生存环境息息相关，大气中的污染物质直接与间接危害学生健康。为了监测校园大气的具体情况，以2023年10月、12月以及2024年2月作为3个季节典型月在浙江农林大学暨阳学院南门口进行了早晨(7:30~9:30)和傍晚(17:30~19:30) 2个时段的颗粒物浓度监测，并计算出TSP、PM₁₀、PM_2.5浓度。监测分析结果表明：监测周期内，温度与颗粒物的浓度总体呈正相关，当温度在一定范围内逐渐上升时，颗粒物的浓度也随之逐渐增加；傍晚的颗粒物浓度总体高于早晨的颗粒物浓度。通过比较不同监测周期的浓度可以看出TSP、PM₁₀、PM_2.5浓度变化的起伏程度，冬季要高于秋季和春季；TSP、PM₁₀、PM_2.5浓度整体上表现为：冬季 > 秋季 > 春季，即冬季的空气质量相对较差，而春季的空气质量相对较好。

Abstract: The atmospheric quality of the campus is closely related to the living environment of students. In order to monitor the specific situation of the atmosphere on the campus, October, December 2023 and February 2024 were used as three seasonal typical months at the south gate of Jiyang College of Zhejiang Agriculture and Forestry University. Degree monitoring and calculating the concentration of TSP, PM₁₀ and PM_2.5. The monitoring and analysis results show that during the monitoring cycle, the temperature is generally positively correlated with the concentration of particulate matter. When the temperature gradually rises within a certain range, the concentration of particulate matter gradually increases; the concentration of particulate matter in the evening is generally higher than that of particulate matter in the morning. By comparing the concentrations of different monitoring cycles, we can see the fluctuation of the concentration of TSP, PM₁₀ and PM_2.5, which is higher in winter than in autumn and spring; the overall concentration of TSP, PM₁₀ and PM_2.5 is: winter > autumn > spring, that is, the air quality in winter is relatively poor, while in spring, the air quality is relatively good.