drinking water pitná voda 7 [vynechat] water treatment 3 [vynechat] úprava vody 3 [vynechat] vodné zdroje 2 [vynechat] water catchment areas 2 [vynechat] bezpečnostná politika 1 [vynechat] drinkable regimen 1 [vynechat] drinking cures 1 [vynechat] environmental aspects 1 [vynechat] environmental problems 1 [vynechat] environmentálne aspekty 1 [vynechat] environmentálne problémy 1 [vynechat] global environmental change 1 [vynechat] global problems 1 [vynechat] globálne problémy 1 [vynechat] globálne problémy životného prostredia 1 [vynechat] health aspects 1 [vynechat] hydroterapia 1 [vynechat] hydrotherapy 1 [vynechat] international relations 1 [vynechat] kvalita vody 1 [vynechat] medzinárodné vzťahy 1 [vynechat] modernization 1 [vynechat] modernizácia 1 [vynechat] ochrana vodných zdrojov 1 [vynechat] pitné kúry 1 [vynechat] pitný režim 1 [vynechat] population health status 1 [vynechat] security policy 1 [vynechat]