Aerial view of an estuary, where a tidal river channel and sandbanks meet the open sea
Sustainable Development Goal 6: Clean water and sanitation

UN Sustainable Development Goal 6

Clean water and sanitation

Ensure availability and sustainable management of water and sanitation for all.

Global Estuaries Monitoring (GEM)

A UN-endorsed programme led by the State Key Laboratory of Marine Environmental Health (CityUHK)


191 estuaries

monitored across 51 countries

The programme tracks pharmaceutical residues, microplastics and other emerging pollutants in major urbanised estuaries worldwide, pinpointing pollution hotspots to support cleaner water.

Learn more

Campus water use · 2024/25

28.9%

reduction in potable water consumption

Year-on-year decrease in mains water drawn across the CityUHK campus.

Research2021–2025

  • 774

    Publications

  • 3.18

    Field-Weighted Citation Impact (FWCI)

  • 658

    Publications with International Collaborations

Teaching & Learning

CityUHK researchers at work Research portfolio Explore CityUHK’s SDG Research Portfolio Discover individual researcher profiles, specific publications and citation data mapped directly to the United Nations Sustainable Development Goals (SDGs). Explore the portfolio

Ongoing Initiatives

Community Engagement