J 2014

Air-sea exchange and gas-particle partitioning of polycyclic aromatic hydrocarbons in the Mediterranean

MULDER, Marie Daniëlle, A. HEIL, Petr KUKUČKA, Jana KLÁNOVÁ, Jan KUTA et. al.

Basic information

Original name

Air-sea exchange and gas-particle partitioning of polycyclic aromatic hydrocarbons in the Mediterranean

Authors

MULDER, Marie Daniëlle (528 Netherlands, belonging to the institution), A. HEIL (276 Germany), Petr KUKUČKA (203 Czech Republic, belonging to the institution), Jana KLÁNOVÁ (203 Czech Republic, belonging to the institution), Jan KUTA (203 Czech Republic, belonging to the institution), Roman PROKEŠ (203 Czech Republic, belonging to the institution), F. SPROVIERI (380 Italy) and Gerhard LAMMEL (276 Germany, guarantor, belonging to the institution)

Edition

Atmospheric Chemistry and Physics, GOTTINGEN, European Geosciences Union, 2014, 1680-7316

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.053

RIV identification code

RIV/00216224:14310/14:00074433

Organization unit

Faculty of Science

UT WoS

000341992000004

Keywords in English

LONG-RANGE TRANSPORT; SEMIVOLATILE ORGANIC-COMPOUNDS; DISPERSION MODEL FLEXPART; BIOMASS BURNING EMISSIONS; SIZE DISTRIBUTION; TEMPORAL SCALES; ATMOSPHERE; URBAN; MARINE; WATER

Tags

Tags

International impact, Reviewed
Změněno: 2/4/2015 12:39, Ing. Filip Vaculovič

Abstract

V originále

Polycyclic aromatic hydrocarbon (PAH) concentration in air of the central and eastern Mediterranean in summer 2010 was 1.45 (0.30-3.25) ng m(-3) (sum of 25 PAHs), with 8 (1-17) % in the particulate phase, almost exclusively associated with particles <0.25 mu m. The total deposition flux of particulate PAHs was 0.3-0.5 mu g m(-2) yr(-1). The diffusive air-sea exchange fluxes of fluoranthene and pyrene were mostly found net-depositional or close to phase equilibrium, while retene was net-volatilisational in a large sea region. Regional fire activity records in combination with box model simulations suggest that seasonal depositional input of retene from biomass burning into the surface waters during summer is followed by an annual reversal of air-sea exchange, while interannual variability is dominated by the variability of the fire season. One-third of primary retene sources to the sea region in the period 2005-2010 returned to the atmosphere as secondary emissions from surface seawaters. It is concluded that future negative emission trends or interannual variability of regional sources may trigger the sea to become a secondary PAH source through reversal of diffusive air-sea exchange. Capsule: In late summer the seawater surface in the Mediterranean has turned into a temporary secondary source of PAH, obviously related to biomass burning in the region.

Links

ED0001/01/01, research and development project
Name: CETOCOEN
GAP503/11/1230, research and development project
Name: Perzistentní organické polutanty v atmosférických aerosolech: Procesy, které ovlivňují dálkový transport v Evropě.
Investor: Czech Science Foundation