_id Date   Time   Wind Direction   Wind Speed (m/s)   Wind Sigma Theta (deg)   Wind Speed Std Dev (m/s)   PM10 (ug/m^3)   Visibility-reducing particles (Mm^-1)   colspacer
Date Time Wind Direction Wind Speed (m/s) Wind Sigma Theta (deg) Wind Speed Std Dev (m/s) PM10 (ug/m^3) Visibility-reducing particles (Mm^-1)