L1 /
13
CH3041
SINKS
Sinks: flux
mechanisms which remove gases.
• Chemical removal - O2 weathering of rocks
• Dry deposition
- direct transfer of gases or particles to the ground (plant
leaves, soil, ocean surface, buildings)
• Wet
removal - dissolved in rain drops
- often after chemical rxn with OH., O2, NOX
to give acids eg. RCO2H, H2SO4, HNO3
- often after chemical rxn with OH., O2, NOX
to give acids eg. RCO2H, H2SO4, HNO3
• Biotic – CO2 used in photosynthesis.
Source - Reservoir - Sink Model
• Any modification of the sources or sinks
will change the quantities in the reservoir.
will change the quantities in the reservoir.
