| D009792 |
Oceans and Seas |
A great expanse of continuous bodies of salt water which together cover more than 70 percent of the earth's surface. Seas may be partially or entirely enclosed by land, and are smaller than the five oceans (Atlantic, Pacific, Indian, Arctic, and Antarctic). |
Seas,Oceans,Seas and Oceans |
|
| D009930 |
Organic Chemicals |
A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form. |
Organic Chemical,Chemical, Organic,Chemicals, Organic |
|
| D002244 |
Carbon |
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. |
Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous |
|
| D002681 |
China |
A country spanning from central Asia to the Pacific Ocean. |
Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China |
|
| 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 |
|
| D012623 |
Seawater |
The salinated water of OCEANS AND SEAS that provides habitat for marine organisms. |
Sea Water,Sea Waters,Seawaters,Water, Sea,Waters, Sea |
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| D013997 |
Time Factors |
Elements of limited time intervals, contributing to particular results or situations. |
Time Series,Factor, Time,Time Factor |
|
| D014874 |
Water Pollutants, Chemical |
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. |
Chemical Water Pollutants,Landfill Leachate,Leachate, Landfill,Pollutants, Chemical Water |
|
| 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 |
|
| 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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