Loss of particle nitrate from teflon sampling filters: effects on measured gravimetric mass in California and in the IMPROVE network.
D000393:Air Pollutants / Q000032:analysis*; D004777:Environment; D004784:Environmental Monitoring; D005374:Filtration; D005843:Geography; D009566:Nitrates / Q000032:analysis*; D010316:Particle Size; D011138:Polytetrafluoroethylene / Q000737:chemistry*; D011634:Public Health; D015203:Reproducibility of Results; D012621:Seasons; D013048:Specimen Handling; D014835:Volatilization
D000393:Air Pollutants; D009566:Nitrates; D011138:Polytetrafluoroethylene