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. 2020 Sep 3;10:14518. doi: 10.1038/s41598-020-71338-7

Table 2.

Estimated results of impact of meteorological elements on six air pollutant concentrations in China.

Variable PM2.5 PM10 CO NO2 O3 SO2
Unstandardized estimated coefficient
WS − 0.155*** − 0.220*** − 0.002*** − 0.122*** 0.365*** − 0.116***
Pre − 0.083*** − 0.097*** 0.000 − 0.049*** − 0.089*** 0.042***
AP 0.053*** 0.139*** − 0.001*** 0.138*** − 0.289*** − 0.056**
Tem − 1.429*** − 1.486*** − 0.023*** − 0.519*** 2.626*** − 0.849***
RA 0.087*** − 0.587*** 0.003*** − 0.001 − 0.813*** − 0.181***
Standardized estimated coefficient
WS − 0.044*** − 0.040*** − 0.031*** − 0.060*** 0.078*** − 0.036***
Pre − 0.090*** − 0.068*** 0.004 − 0.093*** − 0.073*** 0.050***
AP 0.107*** 0.180*** − 0.131*** 0.486*** − 0.439*** − 0.125**
Tem − 0.541*** − 0.362*** − 0.478*** − 0.342*** 0.747*** − 0.354***
RA 0.041*** − 0.178*** 0.066*** − 0.001 − 0.288*** − 0.094***
Constant 18.287* 19.190 2.364*** − 88.613*** 380.263*** 103.085***
Obs 51,072 51,072 51,072 51,072 51,072 51,072
R2 0.424 0.345 0.253 0.342 0.507 0.174
Sites 896 896 896 896 896 896

Estimated result is based on the equilibrium panel data through the cross-section fixed effect model. The number of cross sections is 896 and the time series is 57 months (from June 2014 to February 2019). WS, Pre, RH, Tem and AP indicate annual average value of wind speed, precipitation, relatively humidity, temperature and atmosphere pressure, respectively. Constant is the constant term. *, ** and *** indicate statistical significance at the 10%, 5% and 1% levels, respectively.