Ultra Fine Particles Filter being weighed to determine particulate matter captured from urban air.
Ion chromatography is used to determine ionic species present in air.
A quality assurance program is operated by the laboratory to support the PM2.5 Chemical Speciation Air Monitoring Network. These tasks include oversight of contractor laboratories through on-site audits, analysis of routine quality assurance samples, and performance of evaluation samples. Field personnel receive training on air samplers, field audits are conducted, and quality assurance samples are collected and analyzed. All of these activities ensure that decisions made by the Agency regarding ultra fine particulate matter are based on data of the highest quality.