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Remarks on the sampling procedures for polycyclic aromatic hydrocarbons from the atmosphere

Journal Article:

Abstract

Despite all efforts to optimize the sampling procedure for polycyclic aromatic hydrocarbons (PAH) a part of the PAH is lost during the sampling period. The amount of loss depends on the vapour pressure, the air flow rate, the oxidants in the suspended matter and on the sampling time. The sampling time in return is determined by the PAH concentration in the atmosphere and cannot be shortened infinitely, at least not at the expense of the air flow rate. When the concentration of the PAH is extremely low, a repeated change of the filters is advisable. Losses of PAH even occur when filters are stored in the dark. An evaluation of these losses is difficult for many reasons. There is no relationship between the amount of loss and time unit; the decrease of each PAH is different and seems to depend on the composition of the particulate matter collected on the filter. The disappearance of the PAH from the filter is a continual process, therefore a rapid performance of the analysis is inevitable.
Authors:
Tomingas, R [1] 
  1. Duesseldorf Univ. (Germany, F.R.). Inst. fuer Lufthygiene und Silikoseforschung
Publication Date:
Jan 01, 1979
Product Type:
Journal Article
Reference Number:
EDB-80-022746
Resource Relation:
Journal Name: Z. Anal. Chem.; (Germany, Federal Republic of); Journal Volume: 297
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; POLYCYCLIC AROMATIC HYDROCARBONS; SAMPLING; AIR FILTERS; AIR POLLUTION; LOSSES; STORAGE; TIME DEPENDENCE; VOLATILITY; AROMATICS; EQUIPMENT; FILTERS; HYDROCARBONS; ORGANIC COMPOUNDS; POLLUTION; POLLUTION CONTROL EQUIPMENT; 400100* - Analytical & Separations Chemistry; 500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)
OSTI ID:
5805043
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: ZACFA
Submitting Site:
DE
Size:
Pages: 97-101
Announcement Date:

Journal Article:

Citation Formats

Tomingas, R. Remarks on the sampling procedures for polycyclic aromatic hydrocarbons from the atmosphere. Germany: N. p., 1979. Web.
Tomingas, R. Remarks on the sampling procedures for polycyclic aromatic hydrocarbons from the atmosphere. Germany.
Tomingas, R. 1979. "Remarks on the sampling procedures for polycyclic aromatic hydrocarbons from the atmosphere." Germany.
@misc{etde_5805043,
title = {Remarks on the sampling procedures for polycyclic aromatic hydrocarbons from the atmosphere}
author = {Tomingas, R}
abstractNote = {Despite all efforts to optimize the sampling procedure for polycyclic aromatic hydrocarbons (PAH) a part of the PAH is lost during the sampling period. The amount of loss depends on the vapour pressure, the air flow rate, the oxidants in the suspended matter and on the sampling time. The sampling time in return is determined by the PAH concentration in the atmosphere and cannot be shortened infinitely, at least not at the expense of the air flow rate. When the concentration of the PAH is extremely low, a repeated change of the filters is advisable. Losses of PAH even occur when filters are stored in the dark. An evaluation of these losses is difficult for many reasons. There is no relationship between the amount of loss and time unit; the decrease of each PAH is different and seems to depend on the composition of the particulate matter collected on the filter. The disappearance of the PAH from the filter is a continual process, therefore a rapid performance of the analysis is inevitable.}
journal = {Z. Anal. Chem.; (Germany, Federal Republic of)}
volume = {297}
journal type = {AC}
place = {Germany}
year = {1979}
month = {Jan}
}