J 2014

A Prototype Passive Air Sampler for Measuring Dry Deposition of Polycyclic Aromatic Hydrocarbons

ENG, Anita, Tom HARNER and Karla Andrea POZO

Basic information

Original name

A Prototype Passive Air Sampler for Measuring Dry Deposition of Polycyclic Aromatic Hydrocarbons

Authors

ENG, Anita, Tom HARNER (guarantor) and Karla Andrea POZO (380 Italy, belonging to the institution)

Edition

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS, WASHINGTON, AMER CHEMICAL SOC, 2014, 2328-8930

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Organization unit

Faculty of Science

UT WoS

000350830700016

Keywords in English

Atmospheric chemistry; Hydrocarbons; Nanoparticles; Deposition; Computer simulations

Tags

Tags

International impact, Reviewed
Změněno: 18/6/2020 11:33, Mgr. Marie Šípková, DiS.

Abstract

V originále

The passive dry deposition (Pas-DD) collector is presented as a tool for estimating atmospheric loadings (dry deposition fluxes or maps) for polycyclic aromatic hydrocarbons (PAT-Is) and other semivolatile compounds. Pas-DD collectors based on a parallel plate design were codeployed with conventional polyurethane foam (PUF) disk passive air samplers (PAS) in outdoor urban air over different seasons. Two configurations of sampling media (PUF only vs stacked glass fiber filter on PUF) were used. For both samplers, a higher level of accumulation of PAT-Is was observed when only the PUF disk was used as the sampling medium. The Pas-DD collector and the PAS accumulated gas-phase PAT-Is (dry gaseous deposition component) to a similar extent. For the higher-molecular weight PAHs that are associated with particles, the Pas-DD collector was enriched relative to the PAS. Dry deposition velocities derived from the Pas-DD collector were approximately 0.16 cm/s for gas-phase PAHs and up to 0.8 cm/s for particle-phase PAHs.