title: Temporal variability in airborne pollen concentrations.
abstract: Tests were conducted to determine the relationship between concentrations of airborne pollens and sampling time, using sequential rotoslide samplers at urban and rural locations. Short-period data showed an increase in variability with time between samples. Two-hour data showed a stronger trend for the first 12 hours but better agreement as the time between samples approached one day.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D009518:New York; D011058:Pollen / Q000032:analysis; D012621:Seasons; D013223:Statistics as Topic; D013997:Time Factors; D014919:Wind