Naslov
Chemical status at groundwater monitoring stations and analysis of the implementation of measures within 2016-2021 plan in the Danube river basin district

Autori
Čupić, Daria ; Vlašić, Alena ; Balaž, Borna-Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
6th CROATIAN GEOLOGICAL CONGRESS with international participation / Horvat, Marija ; Matoš, Bojan ; Wacha, Lara - Zagreb, 2019, 50-51

Skup
6. hrvatski geološki kongres s međunarodnim sudjelovanjem

Mjesto i datum
Zagreb, Hrvatska, 09.10.2019. - 12.10.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
national monitoring of groundwater chemical status ; surveillance and operational monitoring ; Regulation ; pollutants ; River Basin Management Plan

Sažetak
The analysis of groundwater chemical status in the Danube river basin district (RBD) is based on the results of the national monitoring of groundwater chemical status which Hrvatske vode performs each year, and related to the results from the 2014-2017 period. 20 grouped groundwater bodies (GWB) have been identified in the Danube RBD, of which 5 water bodies in karst aquifers and 15 water bodies in alluvial aquifers. The grouped water bodies are subject to surveillance monitoring in order to assess the chemical status. Operational monitoring is carried out in order to identify the chemical status of all GWBs for which the analysis of RBD characteristics has identified a risk of failure to achieve the water protection objectives and at which a change of status during the implementation of the programme of measures is monitored. In the GWBs where a significant and sustained upward trend of pollutant concentration under the impact of anthropogenic activities has been identified, the starting points for the monitoring and identification of trends, their change, and the starting points for trend reversals are defined. The chemical status at groundwater monitoring stations is assessed based on the indicators set out in Annex 6 to the Regulation on water quality standard (OG 73/13, 151/14, 61/16, 80/18 ; hereinafter: the Regulation), which are monitored within surveillance and operational monitoring: nitrates and active substances in pesticides, individual and total, as well as specific pollutants. The chemical status of GWBs is classifed in two categories: good and bad. It is determined in accordance with the methodologies from the River Basin Management Plan (RBMP). The results from the monitoring stations that exceed the quality standard or the limit values are classified as bad status at a monitoring station, as opposed to the results that do not exceed the limit values of specific pollutants, i.e. the values of groundwater quality standard that indicate good status at a monitoring station. The status at a monitoring station is an initial indicator that a monitoring station is in bad status, a sign that something is going on in a GWB, requiring measures for the GWB to remain in good status or to change from bad to good status. The scope of groundwater quality data used for status assessment is a slightly bigger than the scope of data available for the development of earlier management plans, but still with poor spatial availability of data. The purpose of this paper is to analyse the implementation of the RBMP 2016-2021 and to analyse the implementation of measures, as well as to propose new measures in the next planning cycle. This paper identifies groundwater-related significant water management issues.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA