<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Effets des herbicides" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/type>	"Text" .
<http://www.idref.fr/210616032/id>	<http://rdaregistry.info/Elements/u/P60049>	<http://rdaregistry.info/termList/RDAContentType/1020> .
<http://www.idref.fr/210616032/id>	<http://www.w3.org/2004/02/skos/core#note>	"Cette th\u00E8se porte sur le devenir environnemental des pesticides, et plus particuli\u00E8rement dans l\u2019atmosph\u00E8re. Nous nous sommes int\u00E9ress\u00E9s \u00E0 leur distribution entre les diff\u00E9rentes phases de l\u2019atmosph\u00E8re et \u00E0 leur photolyse dans l\u2019environnement. La distribution des pesticides entre les phases aqueuse et gazeuse de l\u2019atmosph\u00E8re d\u00E9pend de leur constante de Henry tandis que leur distribution entre les phases gazeuse et particulaires de l\u2019atmosph\u00E8re d\u00E9pend de leur pression de vapeur. Les constantes de Henry de deux herbicides largement utilis\u00E9s, \u00E0 savoir l\u2019EPTC et la trifluraline, ont \u00E9t\u00E9 d\u00E9termin\u00E9es en fonction de la temp\u00E9rature (278 \u2013 293 K) \u00E0 l\u2019aide d\u2019un dispositif bas\u00E9 sur un \u00E9quilibre dynamique. Les r\u00E9sultats obtenus constituent la premi\u00E8re d\u00E9termination exp\u00E9rimentale de la d\u00E9pendance en temp\u00E9rature de la constante de Henry dans le cas de la trifluraline et la seconde dans le cas de l\u2019EPTC. Les mesures effectu\u00E9es entre 278 et 293 K ont permis de d\u00E9terminer les relations de Van\u2019t Hoff pour les constantes de Henry de ces deux compos\u00E9s, ainsi que les enthalpies de solvatation correspondantes. Nos donn\u00E9es obtenues \u00E0 283 K ont permis en outre de calculer que seulement 0.3 % de l\u2019EPTC, 0.8 % de la trifluraline, pr\u00E9sents en phase gazeuse seront dissous dans les gouttelettes d\u2019eau des nuages, ce qui est insuffisant pour constituer un puits significatif pour ces herbicides. Ainsi, l\u2019EPTC et la trifluraline seront presque exclusivement pr\u00E9sents en phase gazeuse o\u00F9 leur d\u00E9gradation aura lieu par voie photochimique [...]" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Polluants atmosph\u00E9riques" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/027233693/id> .
<http://www.idref.fr/210616032/id>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Multiphase chemistry of pesticides in air, distribution and photoreactivite" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/language>	<http://lexvo.org/id/iso639-3/fra> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Herbicides" .
<http://www.idref.fr/210616032/id>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Chimie multiphasique des pesticides dans l'air, distribution et photor\u00E9activit\u00E9" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Photochimie" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/title>	"Chimie multiphasique des pesticides dans l'air, distribution et photor\u00E9activit\u00E9" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/027253139/id> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Pollution par les pesticides" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/050181203/id> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Atmosph\u00E8re -- Pollution par les pesticides" .
<http://www.idref.fr/210616032/id>	<http://iflastandards.info/ns/isbd/elements/P1001>	<http://iflastandards.info/ns/isbd/terms/contentform/T1009> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Spectroscopie d'absorption" .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/elements/1.1/subject>	"Th\u00E8ses et \u00E9crits acad\u00E9miques" .
<http://www.idref.fr/210616032/id>	<http://rdaregistry.info/Elements/w/P10219>	"2009" .
<http://www.idref.fr/210616032/id>	<http://id.loc.gov/vocabulary/relators/dgg>	<http://www.idref.fr/131056549/id> .
<http://www.idref.fr/210616032/id>	<http://id.loc.gov/vocabulary/relators/ths>	<http://www.idref.fr/112571670/id> .
<http://www.idref.fr/210616032/id>	<http://id.loc.gov/vocabulary/relators/aut>	<http://www.idref.fr/136240488/id> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/031435041/id> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/050834843/id> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/032916868/id> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/027246817/id> .
<http://www.idref.fr/210616032/id>	<http://www.w3.org/2004/02/skos/core#note>	"This thesis focuses on the environmental fate of pesticides, particularly in the atmosphere. We are interested on their partitioning between the different phases of the atmosphere and their photolysis in the environment. The partitioning between aqueous and gaseous phases in the atmosphere depends on the Henry\u2019s law constant (H) while the partitioning between atmospheric particulate and gaseous phases is related to their vapor pressure. Henry\u2019s law constants of two widely used herbicides, namely EPTC and trifluralin, were determined as a function of temperature (278 \u2013 293 K) using a device based on a dynamic air/water equilibrium. The obtained results are the first experimental temperature dependence of H for trifluralin and the second one for EPTC. The measurements performed between 278 and 293 K have been used to determine the Van't Hoff expressions of H for both compounds and the corresponding enthalpies of solvation. Our data obtained at 283 K have also helped to calculate that only 0.3% of gaseous EPTC and 0.8% of gaseous trifluralin could be scavenged by clouds droplets, which can be considered as negligible. Thus, EPTC and trifluralin are almost exclusively present in the gas phase where degradation takes place through photochemical reactions [...]" .
<http://www.idref.fr/210616032/id>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://rdaregistry.info/Elements/c/C10001> .
<http://www.idref.fr/210616032/id>	<http://purl.org/dc/terms/subject>	<http://www.idref.fr/027410382/id> .
<http://www.idref.fr/210616032/id>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://purl.org/vocab/frbr/core#Work> .