Valuable tips to check pollution in river
An environmentalist from Poland, Mr Jacek Bozek, who is also a member of the Central European River Network, a group of NGOs from Poland, Slovakia, the Czech Republic, Hungary, Ukraine and Romania,
An environmentalist from Poland, Mr Jacek Bozek, who is also a member of the Central European River Network, a group of NGOs from Poland, Slovakia, the Czech Republic, Hungary, Ukraine and Romania,