Simultaneous observations of rainwater and aerosol chemistry at a remote mid-latitude site

Conference · Tue Apr 01 04:00:00 EST 1986 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5432023

Vong, R J; Hansson, H C; Ross, H B; Covert, D S; Charlson, R J

The chemistry of precipitation in remote areas is important for determining man-caused departures from the natural condition. The remote, mid-latitude North American case has not been extensively studied despite its relevance to the 'acid rain' problem in the United States. Meteorology, chemical processes in the atmosphere, anthropogenic and natural sources, and experimental procedures all contribute to the observed variability of rainwater composition in time and space. Preexisting sub-micron aerosol is a likely precursor of most of the non-seasalt SO/sub 4//sup 2 -/ (SO/sub 4/=xs) in background rainwater (1,2) and of the pH depression below the 5.65 reference value. In this study, simultaneous sampling of sub-micron aerosol and rainwater was performed under an experimental protocol developed to investigate their relationship and to minimize meteorological variability.

• Research Organization: Univ. of Washington FC-05, Seattle, WA
• OSTI ID: 5432023
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 31:2
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
AEROSOLS
ATMOSPHERIC CHEMISTRY
ATMOSPHERIC PRECIPITATIONS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMISTRY
COLLOIDS
DISPERSIONS
HYDROGEN COMPOUNDS
KINETICS
METEOROLOGY
NORTH AMERICA
OXYGEN COMPOUNDS
PH VALUE
RAIN
RAIN WATER
REACTION KINETICS
REMOTE AREAS
RESEARCH PROGRAMS
SAMPLING
SOLS
SULFATES
SULFUR COMPOUNDS
WATER