The authors regret that Figure 3 was incorrect in their original paper and apologise for any inconvenience caused. The correct version of the figure is given below and has been updated online.
Figure 3
Cross-section through the Phanerozoic rocks above the Precambrian crystalline basement for the Baltic countries (locations a–b–c are indicated in Figure 2). The cross-section shows the main geological units of the Baltic Artesian Basin based on the model created by Virbulis et al. (2013). Black vertical lines indicate faults. BAB consists of an active water exchange zone, a passive water exchange zone, and a stagnation zone. See text for more details. Please refer to the online version of this paper to see this figure in color: http://dx.doi.org/10.2166/nh.2022.018.
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Cross-section through the Phanerozoic rocks above the Precambrian crystalline basement for the Baltic countries (locations a–b–c are indicated in Figure 2). The cross-section shows the main geological units of the Baltic Artesian Basin based on the model created by Virbulis et al. (2013). Black vertical lines indicate faults. BAB consists of an active water exchange zone, a passive water exchange zone, and a stagnation zone. See text for more details. Please refer to the online version of this paper to see this figure in color: http://dx.doi.org/10.2166/nh.2022.018.

Figure 3
Cross-section through the Phanerozoic rocks above the Precambrian crystalline basement for the Baltic countries (locations a–b–c are indicated in Figure 2). The cross-section shows the main geological units of the Baltic Artesian Basin based on the model created by Virbulis et al. (2013). Black vertical lines indicate faults. BAB consists of an active water exchange zone, a passive water exchange zone, and a stagnation zone. See text for more details. Please refer to the online version of this paper to see this figure in color: http://dx.doi.org/10.2166/nh.2022.018.
View largeDownload slide

Cross-section through the Phanerozoic rocks above the Precambrian crystalline basement for the Baltic countries (locations a–b–c are indicated in Figure 2). The cross-section shows the main geological units of the Baltic Artesian Basin based on the model created by Virbulis et al. (2013). Black vertical lines indicate faults. BAB consists of an active water exchange zone, a passive water exchange zone, and a stagnation zone. See text for more details. Please refer to the online version of this paper to see this figure in color: http://dx.doi.org/10.2166/nh.2022.018.

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There were also some minor errors in the text on page 971 of the paper. The corrections are given below and the paper has been updated online:

In 2016, catchments with mainly sandy sediments had nitrate concentrations in groundwater exceeding the regulation standard of 50 mg/L for approximately 70% of the monitoring points. In loamy catchments, approximately 8% on average, the monitoring points exceeded the regulation standard.

Finally there was an error in one of the column headings in Table 2. The correct version of the table is given below and has been updated online.

Table 2

Average specific runoff (R, mm/year), runoff volumes (Rv, km3/year), fraction total freshwater withdrawal of average runoff (Tfw/Rv, %), and statistics of countries areal size (km2) and population

RRvTfw/RvaAreaaPopulationa
Countrymm/yearkm3/year%km2million
Denmarkb 381 16.34 4.2 42,933 5.85 
Estoniac 262 11.88 15.3 45,339 1.33 
Finlandd 300 101.53 1.8 338,424 5.50 
Icelande 1460 150.05 0.1 102,775 0.37 
Latviab 567 36.64 0.6 64,589 1.91 
Lithuaniab 341 22.27 1.3 65,300 2.78 
Norwayf 1140 367.77 0.8 322,601 5.40 
Swedenb 434 195.33 1.3 450,295 10.40 
RRvTfw/RvaAreaaPopulationa
Countrymm/yearkm3/year%km2million
Denmarkb 381 16.34 4.2 42,933 5.85 
Estoniac 262 11.88 15.3 45,339 1.33 
Finlandd 300 101.53 1.8 338,424 5.50 
Icelande 1460 150.05 0.1 102,775 0.37 
Latviab 567 36.64 0.6 64,589 1.91 
Lithuaniab 341 22.27 1.3 65,300 2.78 
Norwayf 1140 367.77 0.8 322,601 5.40 
Swedenb 434 195.33 1.3 450,295 10.40 

Estimated total freshwater withdrawal (Tfw) is given in Table 1.

aWikipedia (2021b).

bSource: Eurostat (2021b).

cSource: Vallner & Metslang (1970).

dSource: Vakkilainen (2016).

eSource: Jónsdóttir (2007).

fSource: Beldring et al. (2002).

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