1 Subjects: “... water;swimming pool hygiene;toxins;water quality;water resource monitoring...”

2 Subjects: “...water resources management...”

3 Subjects: “...drinking water resources...”

4 Subjects: “...optimal allocation of water resources...”

5 Subjects: “...water resource management...”

6 Subjects: “...adaptive utilization capacity of water resources...”

7 Subjects: “...water resources...”

8 Subjects: “...integrated water resources management...”

9 Subjects: “...water resource systems...”

10 Subjects: “...water resource management...”