Particulate organic nitrates: Sampling and night/day variation

T. Nielsen; J. Platz; K. Granby; A.B. Hansen; H. Skov; A.H. Egeløv

doi:10.1016/S1352-2310(97)00483-4

Particulate organic nitrates: Sampling and night/day variation

T. Nielsen, J. Platz, K. Granby, A.B. Hansen, H. Skov, A.H. Egeløv

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Atmospheric day and night concentrations of particulate organic nitrates (PON) and several other air pollutants were measured in the summer 1995 over an open-land area in Denmark. The sampling of PON was evaluated comparing 24 h samples with two sets of 12 h samples. These results indicate that the observed low contribution of PON to NO, is real and not the result of an extensive loss during the sampling. Empirical relationships between the vapour pressure and chemical formula of organic compounds were established in order to evaluate the gas/particle distribution of organic nitrates. A positive correlation between the PON to NO, ratio and the inverse temperature may indicate that the organic nitrates associated with particles also may be present in the gas phase. The deserved day and nighttime levels of PON were of the same magnitude, although the day to night ratio vaned from 0.4 to 4.4. (C) 1998 Elsevier Science Ltd. All rights reserved.

Original language	English
Journal	Atmospheric Environment
Volume	32
Issue number	14-15
Pages (from-to)	2601-2608
ISSN	1352-2310
DOIs	https://doi.org/10.1016/S1352-2310(97)00483-4
Publication status	Published - 1998

Keywords

Organic nitrates
Atmospheric chemistry
Daytime
Nighttime
Sampling
Particles
Vapour pressure

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10.1016/S1352-2310(97)00483-4

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title = "Particulate organic nitrates: Sampling and night/day variation",

abstract = "Atmospheric day and night concentrations of particulate organic nitrates (PON) and several other air pollutants were measured in the summer 1995 over an open-land area in Denmark. The sampling of PON was evaluated comparing 24 h samples with two sets of 12 h samples. These results indicate that the observed low contribution of PON to NO, is real and not the result of an extensive loss during the sampling. Empirical relationships between the vapour pressure and chemical formula of organic compounds were established in order to evaluate the gas/particle distribution of organic nitrates. A positive correlation between the PON to NO, ratio and the inverse temperature may indicate that the organic nitrates associated with particles also may be present in the gas phase. The deserved day and nighttime levels of PON were of the same magnitude, although the day to night ratio vaned from 0.4 to 4.4. (C) 1998 Elsevier Science Ltd. All rights reserved.",

keywords = "Planteproduktion og stofoms{\ae}tning, Organic nitrates, Atmospheric chemistry, Daytime, Nighttime, Sampling, Particles, Vapour pressure",

author = "T. Nielsen and J. Platz and K. Granby and A.B. Hansen and H. Skov and A.H. Egel{\o}v",

year = "1998",

doi = "10.1016/S1352-2310(97)00483-4",

language = "English",

volume = "32",

pages = "2601--2608",

journal = "Atmospheric Environment",

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TY - JOUR

T1 - Particulate organic nitrates: Sampling and night/day variation

AU - Nielsen, T.

AU - Platz, J.

AU - Granby, K.

AU - Hansen, A.B.

AU - Skov, H.

AU - Egeløv, A.H.

PY - 1998

Y1 - 1998

N2 - Atmospheric day and night concentrations of particulate organic nitrates (PON) and several other air pollutants were measured in the summer 1995 over an open-land area in Denmark. The sampling of PON was evaluated comparing 24 h samples with two sets of 12 h samples. These results indicate that the observed low contribution of PON to NO, is real and not the result of an extensive loss during the sampling. Empirical relationships between the vapour pressure and chemical formula of organic compounds were established in order to evaluate the gas/particle distribution of organic nitrates. A positive correlation between the PON to NO, ratio and the inverse temperature may indicate that the organic nitrates associated with particles also may be present in the gas phase. The deserved day and nighttime levels of PON were of the same magnitude, although the day to night ratio vaned from 0.4 to 4.4. (C) 1998 Elsevier Science Ltd. All rights reserved.

AB - Atmospheric day and night concentrations of particulate organic nitrates (PON) and several other air pollutants were measured in the summer 1995 over an open-land area in Denmark. The sampling of PON was evaluated comparing 24 h samples with two sets of 12 h samples. These results indicate that the observed low contribution of PON to NO, is real and not the result of an extensive loss during the sampling. Empirical relationships between the vapour pressure and chemical formula of organic compounds were established in order to evaluate the gas/particle distribution of organic nitrates. A positive correlation between the PON to NO, ratio and the inverse temperature may indicate that the organic nitrates associated with particles also may be present in the gas phase. The deserved day and nighttime levels of PON were of the same magnitude, although the day to night ratio vaned from 0.4 to 4.4. (C) 1998 Elsevier Science Ltd. All rights reserved.

KW - Planteproduktion og stofomsætning

KW - Organic nitrates

KW - Atmospheric chemistry

KW - Daytime

KW - Nighttime

KW - Sampling

KW - Particles

KW - Vapour pressure

U2 - 10.1016/S1352-2310(97)00483-4

DO - 10.1016/S1352-2310(97)00483-4

M3 - Journal article

SN - 1352-2310

VL - 32

SP - 2601

EP - 2608

JO - Atmospheric Environment

JF - Atmospheric Environment

IS - 14-15

ER -

Particulate organic nitrates: Sampling and night/day variation

Abstract

Keywords

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