The INTEX (North America) is a two phase experiment that aims to understand the transport and transformation of gases and aerosols on transcontinental/intercontinental scales and assess their impact on air quality and climate.

1. Quantify the outflow of radiatively and chemically important trace gases and aerosols from North America to the Atlantic, and relate this outflow to our understanding of sources and sinks over North America and elsewhere.
2. Understand the transport and chemical evolution of the North American outflow over the Atlantic, and assess the impact and implications of the intercontinental transport of pollution on the global atmosphere and on regional air quality and climate.
3. Quantify the transpacific transport of Asian pollution to North America, and its implications for air quality.