Knowing where the noisest areas are located in a city is important for policy, planning, and public awareness.

In Accra, we took our minute-by-minute noise measurements, that were collected for either 7-days (136 rotating site locations) or a 1-year period (10 fixed site locations), and summarized the daily, day-time, and night-time metrics for each location.

LAeq24hr: Daily equivalent continuous sound levels (dBA)

*The larger circles indicate fixed sites (1 year)

Lday: Day-time equivalent continuous sound levels (dBA)

*The larger circles indicate fixed sites (1 year)

Lnight: Night-time equivalent continuous sound levels (dBA)

* The larger circles indicate fixed sites (1 year)

IR24hr: Daily Intermittency Ratios (%)

(What percentage of the total sound energy is from intermittent events (e.g., Ambulance siren or an airplane flying overhead))

* The larger circles indicate fixed sites (1 year)

Figures are adapted from the open access peer-reviewed published paper Clark et al. Scientific Reports. 2021.