John Kieti mobilised a community to campaign against air pollution
John Kieti always made sure that the windows of his apartment were shut tight and all the curtains closed.
It was his way of keeping out the stench and polluted air in Syokimau, a neighbourhood close to Kenya’s capital, Nairobi.
The pollution was affecting the health of his two children.
“We decided enough was enough. We couldn’t take it in any more,” he told the BBC.
“Every day, we woke up to the stench and dusty air. The children in the estate started developing breathing problems.”
Syokimau is a middle-income neighbourhood, home to more than 5,000 people, many of them staying in two- or three-bedroom apartments.
But there are several factories – among them a steel mill, a cement manufacturing plant and an asphalt factory – dotted across the community, sitting close to residential blocks.
The level of pollution in Nairobi’s outdoor air is above WHO’s recommended maximum level
Mr Kieti, along with his wife and children,