Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk. / Shunthirasingham, Chubashini; Wania, Frank; MacLeod, Matthew et al.
In: Environmental Science & Technology, Vol. 47, No. 16, 20.08.2013, p. 9175-9181.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

Shunthirasingham, C, Wania, F, MacLeod, M, Lei, YD, Quinn, CL, Zhang, X, Scheringer, M, Wegmann, F, Hungerbühler, K, Ivemeyer, S, Heil, F, Klocke, P, Pacepavicius, G & Alaee, M 2013, 'Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk', Environmental Science & Technology, vol. 47, no. 16, pp. 9175-9181. https://doi.org/10.1021/es400851d

APA

Shunthirasingham, C., Wania, F., MacLeod, M., Lei, Y. D., Quinn, C. L., Zhang, X., Scheringer, M., Wegmann, F., Hungerbühler, K., Ivemeyer, S., Heil, F., Klocke, P., Pacepavicius, G., & Alaee, M. (2013). Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk. Environmental Science & Technology, 47(16), 9175-9181. https://doi.org/10.1021/es400851d

Vancouver

Shunthirasingham C, Wania F, MacLeod M, Lei YD, Quinn CL, Zhang X et al. Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk. Environmental Science & Technology. 2013 Aug 20;47(16):9175-9181. doi: 10.1021/es400851d

Bibtex

@article{7cbbe37a358c44e587f1d775b2b7dfbe,
title = "Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk",
abstract = "Concentrations of long-lived organic contaminants in snow, soil, lake water, and vegetation have been observed to increase with altitude along mountain slopes. Such enrichment, called {"}mountain cold-trapping{"}, is attributed to a transition from the atmospheric gas phase to particles, rain droplets, snowflakes, and Earth's surface at the lower temperatures prevailing at higher elevations. Milk sampled repeatedly from cows that had grazed at three different altitudes in Switzerland during one summer was analyzed for a range of persistent organic pollutants. Mountain cold-trapping significantly increased air-to-milk transfer factors of most analytes. As a result, the milk of cows grazing at higher altitudes was more contaminated with substances that have regionally uniform air concentrations (hexachlorobenzene, α-hexachlorocyclohexane, endosulfan sulfate). For substances that have sources, and therefore higher air concentrations, at lower altitudes (polychlorinated biphenyls, γ-hexachlorocyclohexane), alpine milk has lower concentrations, but not as low as would be expected without mountain cold-trapping. Differences in the elevational gradients in soil concentrations and air-to-milk transfer factors highlight that cold-trapping of POPs in pastures is mostly due to increased gas-phase deposition as a result of lower temperatures causing higher uptake capacity of plant foliage, whereas cold-trapping in soils more strongly depends on wet and dry particle deposition. Climatic influences on air-to-milk transfer of POPs needs to be accounted for when using contamination of milk lipids to infer contamination of the atmosphere.",
keywords = "Chemistry, Air, Air Pollutants, Altitude, Animals, Cattle, Cold Temperature, Milk, Soil",
author = "Chubashini Shunthirasingham and Frank Wania and Matthew MacLeod and Lei, {Ying Duan} and Quinn, {Cristina L} and Xianming Zhang and Martin Scheringer and Fabio Wegmann and Konrad Hungerb{\"u}hler and Silvia Ivemeyer and Fritz Heil and Peter Klocke and Grazina Pacepavicius and Mehran Alaee",
year = "2013",
month = aug,
day = "20",
doi = "10.1021/es400851d",
language = "English",
volume = "47",
pages = "9175--9181",
journal = "Environmental Science & Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "16",

}

RIS

TY - JOUR

T1 - Mountain cold-trapping increases transfer of persistent organic pollutants from atmosphere to cows' milk

AU - Shunthirasingham, Chubashini

AU - Wania, Frank

AU - MacLeod, Matthew

AU - Lei, Ying Duan

AU - Quinn, Cristina L

AU - Zhang, Xianming

AU - Scheringer, Martin

AU - Wegmann, Fabio

AU - Hungerbühler, Konrad

AU - Ivemeyer, Silvia

AU - Heil, Fritz

AU - Klocke, Peter

AU - Pacepavicius, Grazina

AU - Alaee, Mehran

PY - 2013/8/20

Y1 - 2013/8/20

N2 - Concentrations of long-lived organic contaminants in snow, soil, lake water, and vegetation have been observed to increase with altitude along mountain slopes. Such enrichment, called "mountain cold-trapping", is attributed to a transition from the atmospheric gas phase to particles, rain droplets, snowflakes, and Earth's surface at the lower temperatures prevailing at higher elevations. Milk sampled repeatedly from cows that had grazed at three different altitudes in Switzerland during one summer was analyzed for a range of persistent organic pollutants. Mountain cold-trapping significantly increased air-to-milk transfer factors of most analytes. As a result, the milk of cows grazing at higher altitudes was more contaminated with substances that have regionally uniform air concentrations (hexachlorobenzene, α-hexachlorocyclohexane, endosulfan sulfate). For substances that have sources, and therefore higher air concentrations, at lower altitudes (polychlorinated biphenyls, γ-hexachlorocyclohexane), alpine milk has lower concentrations, but not as low as would be expected without mountain cold-trapping. Differences in the elevational gradients in soil concentrations and air-to-milk transfer factors highlight that cold-trapping of POPs in pastures is mostly due to increased gas-phase deposition as a result of lower temperatures causing higher uptake capacity of plant foliage, whereas cold-trapping in soils more strongly depends on wet and dry particle deposition. Climatic influences on air-to-milk transfer of POPs needs to be accounted for when using contamination of milk lipids to infer contamination of the atmosphere.

AB - Concentrations of long-lived organic contaminants in snow, soil, lake water, and vegetation have been observed to increase with altitude along mountain slopes. Such enrichment, called "mountain cold-trapping", is attributed to a transition from the atmospheric gas phase to particles, rain droplets, snowflakes, and Earth's surface at the lower temperatures prevailing at higher elevations. Milk sampled repeatedly from cows that had grazed at three different altitudes in Switzerland during one summer was analyzed for a range of persistent organic pollutants. Mountain cold-trapping significantly increased air-to-milk transfer factors of most analytes. As a result, the milk of cows grazing at higher altitudes was more contaminated with substances that have regionally uniform air concentrations (hexachlorobenzene, α-hexachlorocyclohexane, endosulfan sulfate). For substances that have sources, and therefore higher air concentrations, at lower altitudes (polychlorinated biphenyls, γ-hexachlorocyclohexane), alpine milk has lower concentrations, but not as low as would be expected without mountain cold-trapping. Differences in the elevational gradients in soil concentrations and air-to-milk transfer factors highlight that cold-trapping of POPs in pastures is mostly due to increased gas-phase deposition as a result of lower temperatures causing higher uptake capacity of plant foliage, whereas cold-trapping in soils more strongly depends on wet and dry particle deposition. Climatic influences on air-to-milk transfer of POPs needs to be accounted for when using contamination of milk lipids to infer contamination of the atmosphere.

KW - Chemistry

KW - Air

KW - Air Pollutants

KW - Altitude

KW - Animals

KW - Cattle

KW - Cold Temperature

KW - Milk

KW - Soil

U2 - 10.1021/es400851d

DO - 10.1021/es400851d

M3 - Journal articles

C2 - 23885857

VL - 47

SP - 9175

EP - 9181

JO - Environmental Science & Technology

JF - Environmental Science & Technology

SN - 0013-936X

IS - 16

ER -

DOI

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