| 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 |
|
| D011891 |
Rain |
Water particles that fall from the ATMOSPHERE. |
Rains |
|
| D004787 |
Environmental Pollution |
Contamination of the air, bodies of water, or land with substances that are harmful to human health and the environment. |
Pollution, Environmental,Soil Pollution,Pollution, Soil |
|
| D005740 |
Gases |
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed) |
|
|
| D000336 |
Aerosols |
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents. |
Aerosol |
|
| D001272 |
Atmosphere |
The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed) |
Atmospheres |
|
| D016877 |
Oxidants |
Electron-accepting molecules in chemical reactions in which electrons are transferred from one molecule to another (OXIDATION-REDUCTION). |
Oxidant,Oxidizing Agent,Oxidizing Agents,Agent, Oxidizing,Agents, Oxidizing |
|
| D017665 |
Hydroxyl Radical |
The univalent radical OH. Hydroxyl radical is a potent oxidizing agent. |
|
|
| D018533 |
Biomass |
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop. |
Biomasses |
|