Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile

Abstract According to a One Health perspective, the importance of persistent organic pollutants (POPs) must be assessed because of their impact on the environment, food chain and human health. However, information on these toxic compounds is limited in Latin America and the Caribbean region. Chile i...

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Autores principales:	Pizarro-Aránguiz,Nicolás, García-Mendoza,Diego, Muñoz,Rubén, San Martín,Betty, Morales,Rodrigo
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2018
Materias:	Dioxin-like polychlorinated biphenyls environmental variables food contamination persistent organic pollutants polychlorinated dibenzo-p-dioxins polychlorinated dibenzofurans
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000200109
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spelling	oai:scielo:S0718-162020180002001092018-09-24Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of ChilePizarro-Aránguiz,NicolásGarcía-Mendoza,DiegoMuñoz,RubénSan Martín,BettyMorales,Rodrigo Dioxin-like polychlorinated biphenyls environmental variables food contamination persistent organic pollutants polychlorinated dibenzo-p-dioxins polychlorinated dibenzofurans Abstract According to a One Health perspective, the importance of persistent organic pollutants (POPs) must be assessed because of their impact on the environment, food chain and human health. However, information on these toxic compounds is limited in Latin America and the Caribbean region. Chile is no exception; therefore, this work aimed to explain previously reported dioxin levels in cow-milk samples by utilizing regression with meteorological/geographical data that were collected over a three-year survey. To accomplish this aim, a stepwise general multiple regression analysis was carried out for polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (dl-PCBs). The best statistical adjustments were achieved only for highly present congeners. Regarding PCDD/F congeners, the most relevant and significant (P <0.05) factors were the year (mostly a negative coefficient), the season, and the hectares affected by forest fires. In the case of dl-PCB congeners, there was a clear, positive relationship with the geographic parameter (UTM), and this result was consistent with previous findings that dl-PCB congeners show a trend with latitude. In contrast, wind speed was a significant negative coefficient for dl-PCBs. Despite existing knowledge on pollutant levels in milk, this study is relevant to better understand these findings in the Latin America and Caribbean regions.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.45 n.2 20182018-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000200109en10.7764/rcia.v45i2.1887
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dioxin-like polychlorinated biphenyls environmental variables food contamination persistent organic pollutants polychlorinated dibenzo-p-dioxins polychlorinated dibenzofurans
spellingShingle	Dioxin-like polychlorinated biphenyls environmental variables food contamination persistent organic pollutants polychlorinated dibenzo-p-dioxins polychlorinated dibenzofurans Pizarro-Aránguiz,Nicolás García-Mendoza,Diego Muñoz,Rubén San Martín,Betty Morales,Rodrigo Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile
description	Abstract According to a One Health perspective, the importance of persistent organic pollutants (POPs) must be assessed because of their impact on the environment, food chain and human health. However, information on these toxic compounds is limited in Latin America and the Caribbean region. Chile is no exception; therefore, this work aimed to explain previously reported dioxin levels in cow-milk samples by utilizing regression with meteorological/geographical data that were collected over a three-year survey. To accomplish this aim, a stepwise general multiple regression analysis was carried out for polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (dl-PCBs). The best statistical adjustments were achieved only for highly present congeners. Regarding PCDD/F congeners, the most relevant and significant (P <0.05) factors were the year (mostly a negative coefficient), the season, and the hectares affected by forest fires. In the case of dl-PCB congeners, there was a clear, positive relationship with the geographic parameter (UTM), and this result was consistent with previous findings that dl-PCB congeners show a trend with latitude. In contrast, wind speed was a significant negative coefficient for dl-PCBs. Despite existing knowledge on pollutant levels in milk, this study is relevant to better understand these findings in the Latin America and Caribbean regions.
author	Pizarro-Aránguiz,Nicolás García-Mendoza,Diego Muñoz,Rubén San Martín,Betty Morales,Rodrigo
author_facet	Pizarro-Aránguiz,Nicolás García-Mendoza,Diego Muñoz,Rubén San Martín,Betty Morales,Rodrigo
author_sort	Pizarro-Aránguiz,Nicolás
title	Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile
title_short	Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile
title_full	Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile
title_fullStr	Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile
title_full_unstemmed	Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile
title_sort	impact of environmental variables on pcdd/f and dl-pcb levels in dairy milk of the farming region of chile
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000200109
work_keys_str_mv	AT pizarroaranguiznicolas impactofenvironmentalvariablesonpcddfanddlpcblevelsindairymilkofthefarmingregionofchile AT garciamendozadiego impactofenvironmentalvariablesonpcddfanddlpcblevelsindairymilkofthefarmingregionofchile AT munozruben impactofenvironmentalvariablesonpcddfanddlpcblevelsindairymilkofthefarmingregionofchile AT sanmartinbetty impactofenvironmentalvariablesonpcddfanddlpcblevelsindairymilkofthefarmingregionofchile AT moralesrodrigo impactofenvironmentalvariablesonpcddfanddlpcblevelsindairymilkofthefarmingregionofchile
_version_	1714202182202425344

Impact of environmental variables on PCDD/F and dl-PCB levels in dairy milk of the farming region of Chile

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