Please enable JavaScript.
Coggle requires JavaScript to display documents.
Pollution - Coggle Diagram
Pollution
Properties of pollutants
-
-
Density: This will affect its dispersal. Denser requires more energy to remain suspended and deposited earlier
-
-
-
-
Smoke and smoke smogs
Smoke is made from atmospheric particulates produced from incomplete combustion. Smoke is categorised by particulate size. Toxic chemicals such as fluorides, aluminium, lead, acids and organic compounds. Smoke can act synergistically with other pollutants
Smoke smogs
Fog tends to form when moist air is cooled until it reaches its dew point. This makes the temperature inversions more likely
Smoke has a very high albedo so the temperature inversion can last for long periods of time, allowing pollutant levels to rise to a large levels
-
-
Control measures
Transport sources: Diesel particulate filters (DPF) fitted in exhaust pipes of diesel engines trap up to 80% of smoke particles
Electrostatic precipitators Effleunt gasses are passed through a chamber with many charged wires or plates. The smoke particulates are suspended here and fall into 'fly ash'
-
Cyclone separators: Essentially a vacuum. Takes in smoke and spins it until the solids suspend themselves
-
-
-
Photochemical smogs
Effects
-
-
-
-
PANS are toxic at high concentrations, They cause eye irritation
-
-
-
-
