The service could help those with respiratory diseases such as asthma avoid outdoor exposure when levels of pollutants are at their highest.
The data is in the form of graphs showing levels of potentially harmful gases over the last 24 hours, seven and 30 days.
The readings come from the university’s £250,000 Air Environment Research (AER) monitoring station at Falmer, the first of its kind in the UK.
Dr Kevin Wyche, Senior Lecturer in Atmospheric Science and Air Quality Management within the university’s School of Environment and Technology, and co-founder and principal investigator of the AER, said knowing what pollutants are in the air is increasingly vital.
He said: “More than 50,000 people die prematurely each year in the UK from air pollution-related diseases, costing the NHS around 16 per cent of its total budget.