Cumulation NOx in foodstuffs and raw materials of animal origin

In recent years quality of all raw materials processed by agricultural-food industry complex has been influenced by penetration of contaminating hazardous substances into the food chain as a result of high chemization, as well as by the exhalation fall-outs of industrial enterprises. In our study we followed the cumulation of nitrates and nitrites in food and raw materials of animal origin in the exposed industrial area of East Slovak Ironworks in Kosice. Determined were the residual levels of nitrates and nitrites in meat and organs of slaughterhouse cattle, milk and water from individual agricultural enterprises. Consistent control of the content of these hazardous substances in foodstuffs of vegetable and animal origin, water, soil and air represents a considerable contribution from viewpoint of consumer protection.