Non-sea-salt sulfate and nitrate in trade wind aerosols at Barbados: Evidence for long-range transport

Journal Article · Thu Apr 20 04:00:00 EDT 1989 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JD094iD04p05069· OSTI ID:6282340

Savoie, D L; Prospero, J M; Saltzman, E S

From mid-May 1984 through December 1987, more than 1100 daily high-volume bulk aerosol samples were collected during onshore trade winds at Barbados, West Indies. All of these have been analyzed to determine the concentrations of particulate non-sea-salt (nss) sulfate, nitrate, and Saharan dust; 91 of the samples were also analyzed for methanesulfonate (MSA). The mean concentrations (in ..mu..g m/sup -3/) during the period were nitrate, 0.509 (s = 0.389); nss sulfate, 0.751 (s = 0.602); mineral dust, 16.0 (s = 21.1); and MSA, 0.0207 (s+0.0093). The concentrations of both nitrate and nss sulfate are significantly correlated with those of Saharan dust, indicating that substantial fractions of both are transported across the tropical North Atlantic in association with the dust. This transport accounts for about 60% of the mean total concentration of each of the anions at Barbados.

• Research Organization: Marine and Atmospheric Chemistry, University of Miami, Florida
• OSTI ID: 6282340
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 94:D4; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
ATMOSPHERIC CHEMISTRY
BARBADOS
CHEMICAL REACTIONS
CHEMISTRY
COLLOIDS
DISPERSIONS
DUSTS
ENVIRONMENTAL TRANSPORT
ISLANDS
LESSER ANTILLES
MASS TRANSFER
NITRATES
NITROGEN COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
POLLUTION SOURCES
RADIATIONS
SOLAR RADIATION
SOLS
STELLAR RADIATION
SULFATES
SULFUR COMPOUNDS
WEST INDIES