| D010839 |
Phytoplankton |
Free-floating minute organisms that are photosynthetic. The term is non-taxonomic and refers to a lifestyle (energy utilization and motility), rather than a particular type of organism. Most, but not all, are unicellular algae. Important groups include DIATOMS; DINOFLAGELLATES; CYANOBACTERIA; CHLOROPHYTA; HAPTOPHYTA; CRYPTOMONADS; and silicoflagellates. |
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| D002681 |
China |
A country spanning from central Asia to the Pacific Ocean. |
Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China |
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| D002734 |
Chlorophyll |
Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms. |
Phyllobilins,Chlorophyll 740 |
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| D004784 |
Environmental Monitoring |
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment. |
Monitoring, Environmental,Environmental Surveillance,Surveillance, Environmental |
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| D005068 |
Eutrophication |
The enrichment of a terrestrial or aquatic ECOSYSTEM by the addition of nutrients, especially nitrogen and phosphorus, that results in a superabundant growth of plants, ALGAE, or other primary producers. It can be a natural process or result from human activity such as agriculture runoff or sewage pollution. In aquatic ecosystems, an increase in the algae population is termed an algal bloom. |
Algal Bloom,Algal Blooms,Bloom, Algal,Blooms, Algal,Eutrophications |
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| D012621 |
Seasons |
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal |
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| D014873 |
Water Pollutants |
Substances or organisms which pollute the water or bodies of water. Use for water pollutants in general or those for which there is no specific heading. |
Water Pollutant,Pollutant, Water,Pollutants, Water |
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| D045483 |
Rivers |
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean). |
Streams,River,Stream |
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| D052638 |
Particulate Matter |
Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES. |
Ultrafine Fiber,Ultrafine Fibers,Ultrafine Particle,Ultrafine Particles,Ultrafine Particulate Matter,Air Pollutants, Particulate,Airborne Particulate Matter,Ambient Particulate Matter,Fiber, Ultrafine,Particle, Ultrafine,Particles, Ultrafine,Particulate Air Pollutants,Particulate Matter, Airborne,Particulate Matter, Ambient,Particulate Matter, Ultrafine |
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| D060753 |
Water Quality |
A rating of a body of water based on measurable physical, chemical, and biological characteristics. |
Quality, Water |
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