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Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995.

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Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995. / Coleman, Peter J.; Lee, Robert G. M.; Alcock, Ruth E.; Jones, Kevin C.

In: Environmental Science and Technology, Vol. 31, No. 7, 07.1997, p. 2120-2124.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Coleman, PJ, Lee, RGM, Alcock, RE & Jones, KC 1997, 'Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995.', Environmental Science and Technology, vol. 31, no. 7, pp. 2120-2124. https://doi.org/10.1021/es960953q

APA

Coleman, P. J., Lee, R. G. M., Alcock, R. E., & Jones, K. C. (1997). Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995. Environmental Science and Technology, 31(7), 2120-2124. https://doi.org/10.1021/es960953q

Vancouver

Coleman PJ, Lee RGM, Alcock RE, Jones KC. Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995. Environmental Science and Technology. 1997 Jul;31(7):2120-2124. https://doi.org/10.1021/es960953q

Author

Coleman, Peter J. ; Lee, Robert G. M. ; Alcock, Ruth E. ; Jones, Kevin C. / Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995. In: Environmental Science and Technology. 1997 ; Vol. 31, No. 7. pp. 2120-2124.

Bibtex

@article{9d139ecff64a4d77845e10a3e6664eb3,
title = "Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995.",
abstract = "Ambient air concentrations at London and Manchester are reported for PCBs, PAHs, and PCDD/Fs from 1991 to 1995. This data set suggests that urban PAH concentrations are trending downward in the U.K. ∑PCB concentrations (∑ = congeners 28, 52, 101, 118, 138, 153, and 180) were usually 0.2−2 ng m-3 over the study period, with concentrations of the seven PCB congeners (∑PCB) in London generally 2−3 times higher than in Manchester. PCB concentrations have remained quite stable year-on-year over the study period. PCDD/F trends at the two sites were similar, with a decline through 1991−1994, followed by an upturn in 1995. Summer:winter seasonality of PCDD/Fs at both sites has been highly erratic year-on-year and compound-by-compound, far more so than for PAHs and PCBs. This is perhaps best interpreted as a sign that various sources (presumably combustion-derived) have contributed different mixtures of PCDD/Fs of different source strengths at different times to the air at these urban sites. Possible causes are discussed.",
author = "Coleman, {Peter J.} and Lee, {Robert G. M.} and Alcock, {Ruth E.} and Jones, {Kevin C.}",
year = "1997",
month = jul,
doi = "10.1021/es960953q",
language = "English",
volume = "31",
pages = "2120--2124",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "7",

}

RIS

TY - JOUR

T1 - Observations on PAH, PCB and PCDD/F trends in UK urban air, 1991-1995.

AU - Coleman, Peter J.

AU - Lee, Robert G. M.

AU - Alcock, Ruth E.

AU - Jones, Kevin C.

PY - 1997/7

Y1 - 1997/7

N2 - Ambient air concentrations at London and Manchester are reported for PCBs, PAHs, and PCDD/Fs from 1991 to 1995. This data set suggests that urban PAH concentrations are trending downward in the U.K. ∑PCB concentrations (∑ = congeners 28, 52, 101, 118, 138, 153, and 180) were usually 0.2−2 ng m-3 over the study period, with concentrations of the seven PCB congeners (∑PCB) in London generally 2−3 times higher than in Manchester. PCB concentrations have remained quite stable year-on-year over the study period. PCDD/F trends at the two sites were similar, with a decline through 1991−1994, followed by an upturn in 1995. Summer:winter seasonality of PCDD/Fs at both sites has been highly erratic year-on-year and compound-by-compound, far more so than for PAHs and PCBs. This is perhaps best interpreted as a sign that various sources (presumably combustion-derived) have contributed different mixtures of PCDD/Fs of different source strengths at different times to the air at these urban sites. Possible causes are discussed.

AB - Ambient air concentrations at London and Manchester are reported for PCBs, PAHs, and PCDD/Fs from 1991 to 1995. This data set suggests that urban PAH concentrations are trending downward in the U.K. ∑PCB concentrations (∑ = congeners 28, 52, 101, 118, 138, 153, and 180) were usually 0.2−2 ng m-3 over the study period, with concentrations of the seven PCB congeners (∑PCB) in London generally 2−3 times higher than in Manchester. PCB concentrations have remained quite stable year-on-year over the study period. PCDD/F trends at the two sites were similar, with a decline through 1991−1994, followed by an upturn in 1995. Summer:winter seasonality of PCDD/Fs at both sites has been highly erratic year-on-year and compound-by-compound, far more so than for PAHs and PCBs. This is perhaps best interpreted as a sign that various sources (presumably combustion-derived) have contributed different mixtures of PCDD/Fs of different source strengths at different times to the air at these urban sites. Possible causes are discussed.

U2 - 10.1021/es960953q

DO - 10.1021/es960953q

M3 - Journal article

VL - 31

SP - 2120

EP - 2124

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 7

ER -