12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Spatial distribution of atmospheric PAHs and PC...
View graph of relations

« Back

Spatial distribution of atmospheric PAHs and PCNs along a north-south Atlantic transect.

Research output: Contribution to journalJournal article

Published

Journal publication date11/2004
JournalEnvironmental Pollution
Journal number1
Volume132
Number of pages9
Pages173-181
Original languageEnglish

Abstract

Ship-board air samples collected between The Netherlands and South Africa in January–February 2001 were analysed for polycyclic aromatic hydrocarbons (PAHs) and polychlorinated naphthalenes (PCNs). The highest PAH concentrations occurred in the European samples, and in samples close to West Africa and South Africa. Consistently low PAH concentrations were measured in the southern hemisphere open ocean samples (190–680 pg/m3). The highest PCN concentrations occurred in the European samples, but high values were also detected off the West African coast, and in the sample taken closest to South Africa. Data are presented for diurnal cycles taken in the remote South Atlantic. The day:night ratios of phenanthrene, 1-methylphenanthrene and fluoranthene were typically 1.5–2.5:1. The mechanism(s) causing this observation is/are not understood at present, but dynamic environmental process(es) is/are implicated.