Hydrogen ions associated with the dry deposition of pollen

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:7167015

Noll, K E; Khalili, E K ^[1]

---

1. Illinois Institute of Technology, Chicago, Il (USA)

The data provided in this paper demonstrates that pollen can generate significant amounts of hydrogen ions when added to water and that the deposition of tree pollen in forested areas represents a significant hydrogen ion source. Measurements of dry deposition of pollen were made during the months of May and June, 1987 in Northern Wisconsin, using a smooth surrogate surface. Rain samples were also collected. Deposited particles were weighed to determine mass fluxes, then washed and ion chromatographed for SO {sub 4} = and NO {sub 3} {minus} analysis. Species of pollen collected from different types of trees during the sampling period were analyzed for SO{sub 4} = NO {sub 3} and other trace constituents. The micrograms of hydrogen ions (protons) generated per gram for different types of pollen added to water, were measured. From 56 to 566 gm were generated per gram or pollen added. The amount generated varied with pollen type. Based on this information, the equivalent protons from the dry deposition of pollen were calculated and compared with the wet deposition proton data. The sulfate, nitrate, and protons associated with dry deposition were of a magnitude comparable with wet deposition.

• OSTI ID: 7167015
• Report Number(s): CONF-880679-
• Resource Relation: Conference: 81. annual meeting of Air Pollution Control Association, Dallas, TX (USA), 19-24 Jun 1988; Other Information: 88-119.5; Related Information: Volume 7
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ACID RAIN
POLLUTION SOURCES
HYDROGEN IONS
AIR POLLUTION MONITORING
POLLEN
CALCULATION METHODS
CHROMATOGRAPHY
DEPOSITION
FORESTS
RAIN WATER
SEASONAL VARIATIONS
WISCONSIN
ATMOSPHERIC PRECIPITATIONS
CHARGED PARTICLES
FEDERAL REGION V
GAMETES
GERM CELLS
HYDROGEN COMPOUNDS
IONS
NORTH AMERICA
OXYGEN COMPOUNDS
RAIN
SEPARATION PROCESSES
USA
VARIATIONS
WATER
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)