In this paper we have shown that one of the most important characteristic of a packaging is protection of the wrapped product from the influences of the outer. A special emphasis has been put on the analysis of the importance of a packaging in the preventing steam and oxygen harm the product itself.

The quality of water used for drinking, irrigation, industrial food processing or for recreational purposes, has a very important impact on human and animal health. So far, 33 surface water localities have been examined in territory of Vojvodina for the presence of 7 different viruses. The prevalence of enteric viruses in the total number of examined localities was up to 60%. These results unequivocally confirm that there is a risk to the health of animals and humans in the area that gravitates to the examined surface water. The risk to public and animal health is particularly significant in areas and localities where the tested surface water are used for agricultural purposes.

Weaknesses of current monomedium aproach of environmental exposure limits determination for socalled „threshold substances“, independently for water and food, are analyzed from the aspect of impact on the human health. Using the examples of mercury pollution in two geographic areas, the inconsistency and ineffectiveness of the risk assessment for the people is demonstrated if exposure limits are derived for each environmental medium independently. Using the example of air,water and food pollution by phenol in two areas, an attempt is made to prove that different exposure limits can be justifiably used for the same environmental pollutant in the same environmental medium if the multimedia approach is applied for deriving exposure limits. It is not necessary to apply the same exposure limit for a pollutant in an environmental medium neglecting exposure levels in other media; not to exceed the tolerable daily intake of the chemical in the human organism from all environmental media is essential.

The global COVID-19 pandemic during 2020 has led to the infection of 25 million people, causing deaths to 850000 and a serious economic crisis. Despite the fact that due to the pandemic economic growth and production was decreased, leading to a decrease in pollution in general, some specific pollution have emerged as a result of efforts to fight COVID-19. In such situation water can be waived as means of enabling hygienic conditions and raw material for industry, while at the other side wastewater can be assumed as a media for infection spreading. In this context, food production, considering it from field to shelf, food can be affected and contaminated. Risk occurs when contaminated water is used for food production, or when people engaged in production are proven to be infected. Therefore, special care has to be taken respecting safety measures during drinking water preparation and food production, as well as conducting proper wastewater treatment.

Changes in watershed land cover have an impact on reducing water discharge, as well as other derivative impacts such as the productivity of food crops, horticulture, and plantations. This study tries to offer a conceptual model of the effect of changes in watershed land cover, water discharge, and food productivity through food crops, horticultural crops, and plantation crops. This study uses a quantitative approach based on time series data between 2002 and 2021. Data is analyzed using a structural model approach with SEM-SmartPLS software. As a result, changes in land cover have a significant effect on water discharge, but they have no effect on food productivity. Water discharge has a significant effect on food production, and changes in land cover greatly affect food productivity through the role of intermediary variables (mediation) of water discharge. In 2041, changes in land cover can reduce water discharge by around 47.9%. Then the water discharge is estimated to have an impact on the productivity of food crops by 62.3%, vegetable productivity by around 45.7%, and plantation crop productivity by around 72.7%.

A kinetic spectrophotometric method for determining residues of insecticide diflubenzuron 1(4-chlorphenyl)-3-(2,6-diflubenzoyl)urea (DFB) has been developed and validated. Kinetic method was based on the inhibitory effect of DFB on the oxidation reaction of sulfanilic acid (SA) by hydrogen peroxide in the presence of Co 2+ ions in a phosphate buffer, which was monitored at 370 nm. DFB can be measured in the concentration interval 0.102 – 3.40 μg mL -1 and 3.40 – 23.80 μg mL -1 . The detection and quantification limits of the method were calculated according to the 3σ criteria and found to be 0.077 μg mL -1 and 0.254 μg Ml -1 , respectively. The relative standard deviations for five replicate determinations of 0.102, 1.70 and 3.40 μg mL -1 DFB were 2.08, 1.22 and 1.21 %, respectively, for the first concentration interval, and the recovery percentage values were from 94.12 to 97.35 %. HPLC method was used as a parallel method to verify results of the kinetic method. The kinetic method was successfully applied to determine diflubenzuron concentrations in spiked water and baby food samples after solid phase extraction of the samples. The F and t values at 95% confidence level are lower than the theoretical ones, confirming agreement of the developed and the HPLC method.

The lack of water on a global level has a direct impact on the development of agriculture and food industry, which is directly reflected in the in the increase of food production. The fact that water is a limiting factor in the production of food and the knowledge that a large number of people dying of starvation, indicating the importance of water in food industry. In addition to the food industry, pharmaceutical industry is also directly related to human health. Both of these industries not only consume large amounts of water but also have specific requirements in terms of the quality and water conditioning. Due to the high level of quality, these waters are subject to special statutory supervision, in which chemicals are without certificates FDA (Food and Drug Administration) should not be added to the water, whether it is a water treatment or conditioning. Requests of this kind often cause problems and limit the development of the food and pharmaceutical industries.

In this research microbiological status of water from three wells in a particular food factory was investigated. In raw water samples total number of aerobic mesophilic bacteria was determined with two methods - standardized and Petrifilm method which is in Serbia still an alternative method. Number of population of aerobic psychotrophic bacteria was also tested. ATP level was also analyzed. For classical microbiological method and quick method of evaluation of microbiological status correlation was reseached. Results show that coefficient of correlation was higher than 0.99 for the two applied methods. In most water samples the higher number of bacteria formed colonies when Petrifilm method was used. Connection between number of bacteria and level of total and free ATP is not statistically significant, while connection with variation of these values can be described as high direct linear correlation.

The mongraph presents the development and validation of kinetic methods for analysis of quantitative determination of the content of pesticides on the basis of their inhibitory influence in the chosen indicatory reactions. Spectrophotometry procedure allowed observing the speed of chemical reactions at wave length of maximum absorption of the obtained transitory complex metal ion-pesticide-substrate. Detecting the effect of pesticides on the speed of chosen indicatory reactions, allowed presuming the possible mechanism of their effect by building triple complex due to bonding of the metal ion to free electrons of donor atoms in the pesticide molecule. The mongraph explains the inhibitory effect of pesticides expressed by decrease of catalytic activity of the catalyst, due to the fact that depending on both the stability of the formed triple complex and strength of the bond between the donor pesticide atom and metal ion, much more energy is needed for such complex to decompose, which leads to decrease of the speed of indicatory reaction. During the elaboration of kinetic methods, we observed the effect of reaction parameters on the speed o indicatory reactions, the aim of which was to choose the optimal experimental conditions for determination of pesticides. In a part of the mathod elaboration, we tested the effect of pH values in reacction environment, the concentration of indicatory substances and the catalyst on the speed of chosen indicatory reactions. We constructed the calibration curves for determining the pesticides and tested the accuracy and precision of the proposed kinetic methods. We also tested the effect of interference on the speed of inhibitory reactions. The work also icluded defining limits for detection and limits for determination of the tested pesticides. The elaborated kinetic methods were applied for determining pesticides in food and water samples. The food and water samples required a complex preparation due to the presence of numerous substances that had an effect on determining the pesticides by applying these methods. The present distracting substances in the samples were removed by applying extraction methods, which at the same time increased the selectivity of kinetic methods. Validation of the proposed kinetic methods was performed by comparing the obtained results with the results obtained by the reerent HPLC method.