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. Author manuscript; available in PMC: 2012 Jan 9.
Published in final edited form as: Aerosol Sci Technol. 2011 Sep;45(9):1090–1108. doi: 10.1080/02786826.2011.581256

TABLE 5.

Factor analysis of meteorological conditions

Meteorological conditions Factor 1 Factor 2 Factor 3
Temperature (°C)   0.8571   0.5012   0.0841
Dew point (°C)   0.992   0.0034   0.0642
Wind speed (m/s) −0.1595   0.0931 −0.4695
Wind direction (0–360)   0.0471   0.0893 −0.1947
Relative humidity (%)   0.3937 −0.9019 −0.04
Visibility (m) −0.3579   0.2395 −0.0119
Ceiling height (m)   0.0597   0.0721   0.0894
Mean sea level atmospheric pressure −0.3647 −0.039 0.5355
Eigenvalue   2.16603   1.14549   0.56602
% Eigenvalue   0.5637   0.2981   0.1473
Cumulative   0.5637   0.8618   1.0091