environment pollution agency
121Hypoxia (environmental) — Hypoxia, or oxygen depletion, is a phenomenon that occurs in aquatic environments as dissolved oxygen (DO; molecular oxygen dissolved in the water) becomes reduced in concentration to a point where it becomes detrimental to aquatic organisms… …
122Wastewater — For the lake in Northwestern England, see Wastwater. Public infrastructure …
123List of environmental organizations — Contents 1 Intergovernmental organizations 1.1 Worldwide 1.2 Regional …
124Ocean acidification — Change in sea water acidity pH caused by anthropogenic CO2 between the 1700s and the 1990s Ocean acidification is the name given to the ongoing decrease in the pH and increase in acidity of the Earth …
125Great Barrier Reef — The Great Barrier Reef * UNESCO World Heritage Site …
126Stockholm Convention on Persistent Organic Pollutants — The logo of the Stockholm Convention Secretariat Type United Nations treaty Signed 23 May 2001 Location Stockholm, Sweden Effective 17 May 2004 Condition Ninety days a …
127Air Quality Index — The Air Quality Index (AQI) is a standardized indicator of the air quality in a given location. It measures mainly ground level ozone and particulates (except the pollen count), but may also include sulfur dioxide, and nitrogen dioxide. Various… …
128Environmental threats to the Great Barrier Reef — The Great Barrier Reef is the world s largest coral reef system,cite web|author=UNEP World Conservation Monitoring Centre |year=1980|title=Protected Areas and World Heritage Great Barrier Reef World Heritage Area|url=http://sea.unep… …
