Seasonal and spatial variability of PM2.5 concentration, and associated metal(loid) content in the Toluca Valley, Mexico.

Data base of season and site sampling in Toluca Valley, Mexico. We reported the wind roses parameters, temperature, humity relative, PM2.5 concentration and metal and metalloids content. . The objective of this study was to provide evidence of the seasonal and spatial variation of metal(lloid)s in particulate matter minor to 2.5 microns (PM2.5) in Toluca Valley. Four sites were sampled between 2013-2014, that include urban and industrial areas, in the dry-cold (November-February) and hot-dry (March-May) season; PM2.5 were collected using high and medium volume samplers. Metal and metalloids concentrations in PM2.5 were analyzed using Inductively Coupled Plasma Mass Spectrometry (ICP-MS).