ASAP-East Africa




Nairobi has one of the highest urban growth rates per annum in Africa with annual growth of 2.8% between 2000 and 2015. The population has increased from 137,000 in 1950 to 4,070,000 in 2015. UN-HABITAT estimates that by 2030 Nairobi’s population will grow to 7,140,000 (ca. 82% increase in population over a 15-year period).

The city is home to 33.9% of Kenya’s urban population. Urban agglomeration population density is 8,000/km². Nairobi faces urbanisation challenges such as inadequate housing and expanding informal settlements, lack of coordinated planning and confusion between types of development zoning and historic mismanagement of the privatisation of public transportation. Motorisation rates are high in Nairobi.

Air Quality in Nairobi, now:

Vulnerability Scoping Studies

Below are two vulnerability scoping studies which explore the experiences of vulnerable populations in Nairobi:

Inner City Nairobi Primary School

Waste Pickers on Dandora dumpite

Air Quality of Nairobi in 3 charts

Nairobi- Visibility.PNG

Visibility data, routinely recorded at airports worldwide, allows for analysis of past patterns of PM air pollution. Lower visibility indicates higher PM concentrations. A clear trend of decreasing annual visibility (0.37 km/year) was observed in Nairobi between 1973 and 2019. Findings suggest that visibility decreased by 73% during this period

Nairobi Pop.PNG

The population of Nairobi grew by 135% (1990-2010) with an additional 3.9 million city residents estimated by 2030. National GDP grew by 772% (1990-2017).

Nairobi- EPA US.PNG

Current air quality levels (US EPA) range between 12 µg/m3 (good) and 85 µg/m3 (unhealthy) over a 48 hour period 23rd – 25th February 2019 (the most recent data available).