Determination of octanol-air partition coefficients of organochlorine pesticides (OCPs) as a function of temperature: Application to air-soil exchange. Odabasi, M. & Cetin, B. JOURNAL OF ENVIRONMENTAL MANAGEMENT, 113:432-439, 2012. abstract bibtex Octanol-air partition coefficients (K-OA) for 7 organochlorine
pesticides (OCPs) were determined as a function of temperature using the
GC retention time method. Log K-OA values at 25 degrees C ranged over
two orders of magnitude, between 8.32 (chlorpyrifos) and 10.48
(methoxychlor). The determined K-OA values were within a factor of 0.5
(endosulfan sulfate) to 7.9 (endrin aldehyde) for values calculated as
the ratio of octanol-water partition coefficient to dimensionless
Henry's law constant. The internal energies of phase transfer between
octanol and air (Delta U-OA) ranged between 71.8 and 95.4 kJ mol(-1) and
they were within the reported range for OCPs (55.8-105 kJ mol(-1)).
Atmospheric and soil OCP concentrations were also measured in Izmir,
Turkey, and data used to investigate the soil-air gas exchange. Net
soil-air gas exchange fluxes of OCPs ranged from -0.01 (volatilization,
cis-nonachlor) to 56.4 ng m(-2) day(-1) (deposition, chlorpyrifos) in
winter, while in summer they ranged from -0.03 (trans-nonachlor) to 329
ng m(-2) day(-1) (endosulfan I). In both sampling periods, endosulfan I
and II, trans-nonachlor, p,p'-DDD and p,p'-DDT were generally deposited
to the soil while gamma-HCH and heptachlor epoxide mostly volatilized.
Fluxes of other OCPs were variable (volatilization or absorption) due to
their largely fluctuating ambient air concentrations. Calculated dry
deposition and recently measured wet deposition fluxes were used to
estimate the relative importance of different mechanisms (i.e., dry
deposition, wet deposition, gas absorption, and volatilization) to the
local soil pollutant inventory. Generally, all mechanisms contributed
significantly to the soil OCP inventory. Volatilization fluxes were
generally much lower than the sum of input fluxes (dry deposition, wet
deposition and gas absorption) for most of the OCPs indicating a net
deposition to the soil. (C) 2012 Elsevier Ltd. All rights reserved.
@article{
title = {Determination of octanol-air partition coefficients of organochlorine pesticides (OCPs) as a function of temperature: Application to air-soil exchange},
type = {article},
year = {2012},
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abstract = {Octanol-air partition coefficients (K-OA) for 7 organochlorine
pesticides (OCPs) were determined as a function of temperature using the
GC retention time method. Log K-OA values at 25 degrees C ranged over
two orders of magnitude, between 8.32 (chlorpyrifos) and 10.48
(methoxychlor). The determined K-OA values were within a factor of 0.5
(endosulfan sulfate) to 7.9 (endrin aldehyde) for values calculated as
the ratio of octanol-water partition coefficient to dimensionless
Henry's law constant. The internal energies of phase transfer between
octanol and air (Delta U-OA) ranged between 71.8 and 95.4 kJ mol(-1) and
they were within the reported range for OCPs (55.8-105 kJ mol(-1)).
Atmospheric and soil OCP concentrations were also measured in Izmir,
Turkey, and data used to investigate the soil-air gas exchange. Net
soil-air gas exchange fluxes of OCPs ranged from -0.01 (volatilization,
cis-nonachlor) to 56.4 ng m(-2) day(-1) (deposition, chlorpyrifos) in
winter, while in summer they ranged from -0.03 (trans-nonachlor) to 329
ng m(-2) day(-1) (endosulfan I). In both sampling periods, endosulfan I
and II, trans-nonachlor, p,p'-DDD and p,p'-DDT were generally deposited
to the soil while gamma-HCH and heptachlor epoxide mostly volatilized.
Fluxes of other OCPs were variable (volatilization or absorption) due to
their largely fluctuating ambient air concentrations. Calculated dry
deposition and recently measured wet deposition fluxes were used to
estimate the relative importance of different mechanisms (i.e., dry
deposition, wet deposition, gas absorption, and volatilization) to the
local soil pollutant inventory. Generally, all mechanisms contributed
significantly to the soil OCP inventory. Volatilization fluxes were
generally much lower than the sum of input fluxes (dry deposition, wet
deposition and gas absorption) for most of the OCPs indicating a net
deposition to the soil. (C) 2012 Elsevier Ltd. All rights reserved.},
bibtype = {article},
author = {Odabasi, Mustafa and Cetin, Banu},
journal = {JOURNAL OF ENVIRONMENTAL MANAGEMENT}
}
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Log K-OA values at 25 degrees C ranged over\ntwo orders of magnitude, between 8.32 (chlorpyrifos) and 10.48\n(methoxychlor). The determined K-OA values were within a factor of 0.5\n(endosulfan sulfate) to 7.9 (endrin aldehyde) for values calculated as\nthe ratio of octanol-water partition coefficient to dimensionless\nHenry's law constant. The internal energies of phase transfer between\noctanol and air (Delta U-OA) ranged between 71.8 and 95.4 kJ mol(-1) and\nthey were within the reported range for OCPs (55.8-105 kJ mol(-1)).\nAtmospheric and soil OCP concentrations were also measured in Izmir,\nTurkey, and data used to investigate the soil-air gas exchange. Net\nsoil-air gas exchange fluxes of OCPs ranged from -0.01 (volatilization,\ncis-nonachlor) to 56.4 ng m(-2) day(-1) (deposition, chlorpyrifos) in\nwinter, while in summer they ranged from -0.03 (trans-nonachlor) to 329\nng m(-2) day(-1) (endosulfan I). In both sampling periods, endosulfan I\nand II, trans-nonachlor, p,p'-DDD and p,p'-DDT were generally deposited\nto the soil while gamma-HCH and heptachlor epoxide mostly volatilized.\nFluxes of other OCPs were variable (volatilization or absorption) due to\ntheir largely fluctuating ambient air concentrations. Calculated dry\ndeposition and recently measured wet deposition fluxes were used to\nestimate the relative importance of different mechanisms (i.e., dry\ndeposition, wet deposition, gas absorption, and volatilization) to the\nlocal soil pollutant inventory. Generally, all mechanisms contributed\nsignificantly to the soil OCP inventory. Volatilization fluxes were\ngenerally much lower than the sum of input fluxes (dry deposition, wet\ndeposition and gas absorption) for most of the OCPs indicating a net\ndeposition to the soil. (C) 2012 Elsevier Ltd. All rights reserved.","bibtype":"article","author":"Odabasi, Mustafa and Cetin, Banu","journal":"JOURNAL OF ENVIRONMENTAL MANAGEMENT","bibtex":"@article{\n title = {Determination of octanol-air partition coefficients of organochlorine pesticides (OCPs) as a function of temperature: Application to air-soil exchange},\n type = {article},\n year = {2012},\n identifiers = {[object Object]},\n pages = {432-439},\n volume = {113},\n id = {c60632ac-56ee-3650-a0f6-1d66593b3c00},\n created = {2016-04-28T08:46:18.000Z},\n file_attached = {false},\n profile_id = {dce7c6b2-57cf-350f-b364-3e8ed99bb344},\n group_id = {bfd80d76-e42d-36f1-b5b9-353e1a47eb95},\n last_modified = {2016-04-28T08:46:18.000Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {ISI:000313153000048},\n source_type = {article},\n abstract = {Octanol-air partition coefficients (K-OA) for 7 organochlorine\npesticides (OCPs) were determined as a function of temperature using the\nGC retention time method. Log K-OA values at 25 degrees C ranged over\ntwo orders of magnitude, between 8.32 (chlorpyrifos) and 10.48\n(methoxychlor). The determined K-OA values were within a factor of 0.5\n(endosulfan sulfate) to 7.9 (endrin aldehyde) for values calculated as\nthe ratio of octanol-water partition coefficient to dimensionless\nHenry's law constant. The internal energies of phase transfer between\noctanol and air (Delta U-OA) ranged between 71.8 and 95.4 kJ mol(-1) and\nthey were within the reported range for OCPs (55.8-105 kJ mol(-1)).\nAtmospheric and soil OCP concentrations were also measured in Izmir,\nTurkey, and data used to investigate the soil-air gas exchange. Net\nsoil-air gas exchange fluxes of OCPs ranged from -0.01 (volatilization,\ncis-nonachlor) to 56.4 ng m(-2) day(-1) (deposition, chlorpyrifos) in\nwinter, while in summer they ranged from -0.03 (trans-nonachlor) to 329\nng m(-2) day(-1) (endosulfan I). 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All rights reserved.},\n bibtype = {article},\n author = {Odabasi, Mustafa and Cetin, Banu},\n journal = {JOURNAL OF ENVIRONMENTAL MANAGEMENT}\n}","author_short":["Odabasi, M.","Cetin, B."],"bibbaseid":"odabasi-cetin-determinationofoctanolairpartitioncoefficientsoforganochlorinepesticidesocpsasafunctionoftemperatureapplicationtoairsoilexchange-2012","role":"author","urls":{},"downloads":0,"html":""},"search_terms":["determination","octanol","air","partition","coefficients","organochlorine","pesticides","ocps","function","temperature","application","air","soil","exchange","odabasi","cetin"],"keywords":[],"authorIDs":[]}