Atmospheric Ammonia Concentrations (IMAGE)

Institute of Atmospheric Physics, Chinese Academy of Sciences

Atmospheric Ammonia Concentrations

Caption

Contributions of emissions from various source sectors to the atmospheric ammonia concentrations in urban Beijing. This figure shows the results based on year-round isotopic measurements. However, under conditions with polluted southerly flow, 73 percent (35-95 percent) of the initial ammonia could be attributed to fossil fuel emissions.

Credit

Yuepeng Pan

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