Natural Source Lightning
Worse in Summer
Natural Source Volcanoes
An example is Pollen
Pb
CO
SO2
Cannot be seen or smelled
NO2
Smells like rotten eggs
Secondary Pollutant
Interferes with oxygen transfer in body
Metal
different sizes that have different effects on health
Removed from gas/paint
Reacts with VOCs and sunlight to form bad ozone
Affects the most amount of people
O3