Analysis of plasma indices of redox homeostasis in dairy cows reared in polluted areas of Piedmont (northern Italy)

► The effect of environmental pollutants on blood redox status of bovine was evaluated. ► Pollutant exposure negatively affects blood redox homeostasis of bovine cows. ► Blood redox status represents a biomarker of the extent of animal exposure to environmental pollutants. ► Lipophilic compartment is a selective target of oxidative damage in dairy cows. ► The extent of oxidative damage is correlated to the degree of milk dioxin contamination.