To stagnate (air or water) is to stop moving or circulating, becoming stale or foul from standing.
When an air mass is concealed in one area for a extended period of time so it stagnates.
When an enclosed are, such as a room, a basement, an attic, etc., receives no air circulation for a period of time, the air stagnates.
Water that is not being replaced by rainfall is often referred to as stagnant water. Stagnant water is standing or still water that does not flow or circulate, increasing the likelihood of becoming a breeding ground for mosquitoes and other pests. It can also become depleted in oxygen and accumulate pollutants over time.
When you mix sulfur compounds with stagnant air, you may get a foul-smelling gas called hydrogen sulfide. This gas has a characteristic rotten egg odor and can be toxic to humans in high concentrations. It is commonly produced in environments with decomposing organic matter, such as swamps or sewage treatment facilities.
When weather systems are calm, stagnant air helps smog to form. Smog is sometimes referred to as haze or fog.
Wind is caused by air moving from areas of high pressure to areas of low pressure. If you were to move up into higher air pressure from a lower pressure area, you would generally experience a calmer and more stagnant air environment, as air tends to move towards lower pressure regions.
Environmentally is the adverb form of environment.
anaerobic
A stagnant swamp is often referred to as a "dead swamp" or simply a "stagnant marshland."
Do not refill your canteen from stagnant water. I left the company because my career became stagnant.
Active, energetic, and dynamic are a few antonyms of stagnant.
Algae and other microorganisms tend to grow faster in stagnant water due to the lack of water movement, which can lead to decreased oxygen levels and increased availability of nutrients. This can create an ideal environment for rapid microbial growth.
methane is produced in the stagnant water in rice fields...
The stagnant water smelled nasty.
Unlike rushing water in a river, water in a pond is stationary and stagnant. 1 stagnant water or air is not moving and therefore smells unpleasant: Few fish survive in the stagnant waters of the lake. 2 not developing, growing or changing: The new investments are aimed at reviving the stagnant economy. The housing market has been largely stagnant over the past few months.
The elephants gathered around a stagnant watering hole since they were too tired to look for a freshwater source. The stagnant water smelled awful.
The water in the stagnant pond quickly took on an unpleasant smell.
Then it's dirty. Good point. Stagnant MEANS dirty.
The stagnant water was unsafe to drink because it was not moving.