Our instruments are installed on all continents, in more than 70 countries. This is one of our numerous installations.
Scientist Armando Retama installed an AE33 Aethalometer and a CO2 probe at a monitoring station operated by Mexico City half-way up the slopes of the volcano Popocatepetl. Below the station, the megacity (population ~ 30 Million) fills the Valle de Mexico with a dense layer of air pollution. During the day, atmospheric advection brings the combined cloud of pollution up the slopes of the surrounding mountains. The ratio between ‘Aerosol Carbon’ and CO2 provides an overall measure of the net aggregated emissions from the entire city.
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