hrvatski

Analiza glavnih fizikalno-kemijskih parametara i nutrijenata u površinskim vodama rijeke Mure u Hrvatskoj

Ever increasing world population requires efficient food production and extensive urbanization. Hence, annual increase in implementation of nitrogen fertilizers which significantly increase agricultural yield, but also increase water pollution. Though nitrates are necessary for rapid plant growth, their increased concentration is toxic and has a negative impact on the environment (eutrophication) and on human health (methemoglobinemia and some types of cancer). This paper gives an overview and an assessment of water quality of Mura River in Croatia, based on the analysis of water physical and chemical parameters according to the national Decree on Water Quality Standards (2013). Water samples were collected and analysed monthly over the period of ten years, and refer to the period from 2009 to 2018. Analysed parameters were pH, chemical oxygen demand (COD-Mn), five-day biochemical oxygen demand (BOD5), and nutrients: nitrogen compounds (nitrates, nitrites and total nitrogen) and phosphorus compounds (orthophosphates and total phosphorus). The obtained results indicate a water quality status between moderate and good, depending on the parameter and year. However, it is necessary to take actions to protect Mura River form pollution. Also, continuous monitoring of water quality is necessary in order to insure adequate implementation of measures for water quality protection.

Mura, fizikalno-kemijski parametri, kakvoća vode

nije evidentirano

engleski

Analysis of basic physical-chemical parameters and nutrients in surface water of Mura River in Croatia

Ever increasing world population requires efficient food production and extensive urbanization. Hence, annual increase in implementation of nitrogen fertilizers which significantly increase agricultural yield, but also increase water pollution. Though nitrates are necessary for rapid plant growth, their increased concentration is toxic and has a negative impact on the environment (eutrophication) and on human health (methemoglobinemia and some types of cancer). This paper gives an overview and an assessment of water quality of Mura River in Croatia, based on the analysis of water physical and chemical parameters according to the national Decree on Water Quality Standards (2013). Water samples were collected and analysed monthly over the period of ten years, and refer to the period from 2009 to 2018. Analysed parameters were pH, chemical oxygen demand (COD-Mn), five-day biochemical oxygen demand (BOD5), and nutrients: nitrogen compounds (nitrates, nitrites and total nitrogen) and phosphorus compounds (orthophosphates and total phosphorus). The obtained results indicate a water quality status between moderate and good, depending on the parameter and year. However, it is necessary to take actions to protect Mura River form pollution. Also, continuous monitoring of water quality is necessary in order to insure adequate implementation of measures for water quality protection.

Mura River, physicochemical parameters, water quality

nije evidentirano