 | Hydrocarbons |
 | Alkanes |
| Alkenes |
Direct contaminants--have deleterious effect on their own
Indirect pollutants--react in air to make harmful compounds
(e.g.Smog formers)
Classes of Organic Air Contaminants
| Hydrocarbons |
| Alkanes |
| Alkenes |
Aromatics
Aldehydes and ketones
Alcohols,
Phenols,
Ethers
Oxides
Carboxylic Acids
Alkyl Halides
Alkenyl Halides
Aromatic Halides
Organosulfur Compounds
Organonitrogen Compounds
Oxidizing and Reducing Smogs
Influence of Automobiles
NO, CO, Hydrocarbons
Catalytic Converters
Emission standards
Smog Forming Reactions
Methane Reactions
Smog Formation
Sources: Natural--
|
from
plants- terpenes and other hydrocarbons |
|
from decomposition of biomass--mostly methane |
Smog Forming Reactions
Methane Reactions
Photochemical Reactions
Wavelengths < 420 nm --> O atoms
Organic free radicals produced-Chain reactions begin, propagate and terminate
NO2 is formed in quantity
SO2 in Smog
Effects of Smog:
· Health ·
Plants ·
Materials
Global Warming
Acid Rain
The Ozone Layer