IB ESS 8.3.2 Primary pollutant sources
IB ESS 8.3.2 Primary pollutant sources
Practise explaining natural and human sources of primary pollutants and how traffic, combustion or weather conditions affect urban air quality.
How this is tested
- link morning increases in NOx or hydrocarbons to traffic, industry or fossil fuel combustion
- explain how low wind, dry weather or atmospheric stability allows pollutants to accumulate