摘要
[目的]探讨大气SO2、NO2、PM10浓度变化与气温、气压、相对湿度的关系。[方法]大气SO2、NO2、PM10浓度和日平均气压、日最大气压、日最小气压、日平均气温、日最高气温、日最低气温、日平均相对湿度、日最小相对湿度的月均值由相应月份的日监测值得出,大气污染物浓度与气象要素的相关关系采用多变量逐步回归分析模型分析。[结果]①大气SO2浓度变化与日最大气压有关,气压的增加有利于SO2浓度的加大,其标化偏回归系数(β)为0.6246;SO2浓度变化与日平均相对湿度有关,湿度的加大有利于SO2浓度的减少(β=-0.7623)。②大气NO2浓度变化与日最大气压有关,气压的增加有利于NO2浓度的加大(β=0.9999);NO2浓度变化与日最高气温、日平均相对湿度有关,这二者的升高有利于NO2浓度的减少(β分别为-0.4226和-0.6307)。③大气PM10浓度变化与日平均气压有关,气压的增加有利于PM10浓度的加大(β=0.8368);PM10浓度与日平均相对湿度、日最小相对湿度有关,日平均相对湿度的加大有利于PM10浓度的降低(β=-2.6988),日最小相对湿度的升高有利于PM10浓度的加大(β=1.7538)。[结论]气温、气压和相对湿度的改变对大气SO2、NO2、PM10浓度有影响。
[Objective] To explore relationship of concentrations of SO2, NO2 and PM10 in the air with temperature, air pressure and relative humidity. [Methods] The data about the air concentrations of SO2O2, NO2 and PM10 were got from the environmental protection monitoring center of Shenzhen as well as the data about the meteorological indexes including daily average, max and rain atmospheric pressure, daily average, max and rain air temperature, and daily average and rain relative humidity. The con＇elated relationship of concentration of atmospheric pollutant with meteorological element was analyzed by multiple stepwise regression. [ Results ] ① The air eoneentration of SO2 was assoeiated with the daily max atmospheric pressure （β = 0.624 6）, the increasing air pressure was profit to the increasing concentration of SO2, with the standardization partial regression coefficient to be 0.624 6; The changes of SO2 showed significantly associated with relative humidity, whieh could advantage to the decreasing concentration of SO, （β = -0.762 3）. ②The air concentration of NO2 revealed to be significantly positive association with the daily max atmospheric pressure （β = 0.999 9）, while negative association with the daily max air tem- perature and the daily average relative humidity （β was -0.422 6 and -0.630 7, respectively）. ③ The air concentration of PM10 showed positive correlation with the daily average atmospheric pressure （β = 0.836 8） and daily minimum relative humidity （β = 1.753 8）, while negative association with daily average relative humidity and and the daily rain relative hunfidity （β = -2.698 8）. [Conclusion] Changes of air temperature, atmospheric pressure and relative humidity would have impact on tire concentration of SO2, NO2 and PM10, in the air.
出处
《现代预防医学》
CAS
北大核心
2008年第15期2855-2857,共3页
Modern Preventive Medicine
基金
国家空气污染与疾病监测项目资助
关键词
SO2
NO2
PM10
气温
气压
相对湿度
相关关系
Sulfur dioxide
Nitrogen dioxide
Pnhalable particle matter
Air temperature
Atmospheric pressure
Relative humidity
Relationship
