title: [Environmental micropollutants in livestock products from Susa Valley, Piedmont].
abstract: OBJECTIVE
  to describe the contamination due to dioxins and dioxin-like PCBs of cattle dairy and meat products in cattle herds from Susa Valley (Piedmont) since the second half of 2004.
  
  
  METHODS
  descriptive study based on a biomonitoring campaign on bovine bulk milk and muscle.
  
  
  METHODS
  the official samplings have been carried out between 2004 and 2010: the dataset refers to 99 mass milk samples and 24 muscle samples from 51 cattle herds based in 23 municipalities of the valley.
  
  
  METHODS
  counts and frequencies of samples exceeding either the maximum levels or the action levels set by the European legislation; moreover relative distributions of congeners (profiles) were considered.
  
  
  RESULTS
  DL-PCBs showed median concentration values double when compared with dioxins values and a couple of congeners (2,3,4,7,8-PeCDF, 118 DL-PCB) were particularly abundant. More than 60% of both the milk samples and herds exceeded the action levels with the involvement of 10 municipalities most of which located nearby a local steel smelter. The DL-PCB values in milk were associated with the distance of each herd from the steel plant. However, the temporal trend highlights a clear decrease of the contamination over the 2004-2010 period, when the plant was renewed and the production levels where negatively impacted by the global economical crisis.
  
  
  CONCLUSIONS
  the findings of the monitoring activity allowed the understanding of the origin and the spatio-temporal evolution of the contamination: this knowledge may be helpful in orienting future controls and the risk mitigation strategies.
authors.affiliation: Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Torino. rosanna.desiato@izsto.it
authors.forename: Rosanna
authors.initials: R
authors.lastname: Desiato
authors.forename: Elisa
authors.initials: E
authors.lastname: Baioni
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Cuttica
authors.forename: Bruno
authors.initials: B
authors.lastname: Sparagna
authors.forename: Paolo
authors.initials: P
authors.lastname: Berruto
authors.forename: Maria Cesarina
authors.initials: MC
authors.lastname: Abete
authors.forename: Silvia
authors.initials: S
authors.lastname: Bertolini
authors.forename: Cristiana
authors.initials: C
authors.lastname: Maurella
authors.forename: Maria
authors.initials: M
authors.lastname: Caramelli
authors.forename: Laura
authors.initials: L
authors.lastname: Chiavacci
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Ru
mesh_terms: D000818:Animals; D002274:Carcinogens, Environmental / Q000032:analysis*; D002417:Cattle; D004147:Dioxins / Q000032:analysis*; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D005663:Furans / Q000032:analysis*; D007220:Industrial Waste; D007558:Italy; D008460:Meat / Q000032:analysis*; D008669:Metallurgy; D008892:Milk / Q000737:chemistry*; D018482:Muscle, Skeletal / Q000737:chemistry; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D013997:Time Factors
chemical_list: D002274:Carcinogens, Environmental; D004147:Dioxins; D004785:Environmental Pollutants; D005663:Furans; D007220:Industrial Waste; D011078:Polychlorinated Biphenyls