QUALITY OF SURFACE WATER IN THE AGRICULTURAL DISTRICT LONJA FIELD (CROATIA)

According to the pH values, the water were in first class and were rated as a high state. According to its origin, organic matter in water can be a product of biochemical processes or a product of human activities. According to the indicator group, the water of rivers Lonja and Sava are classified in the third category and the water status is rated as moderate. According to the indicator group, the water of rivers Lonja and Sava are classified in the fourth category and the water status is rated as poor.