Mosiria issues fresh warning on air pollution after man caught rearing pigs in estate

Nairobi environment chief officer Geoffrey Mosiria has issued a fresh warning on air pollution following an incident in Utawala where a man was found rearing pigs within a residential estate and grinding bones to produce chicken feed.

In a video shared on his Instagram page on Saturday, September 27, 2025, Mosiria revealed that his team responded to complaints from residents who had raised alarm over a strong foul smell emanating from the activities.

You might also like

Celebrity

Geoffrey Mosiria shares follow-up on tree man from street to stability

Celebrity

Mosiria promises urgent action after claims of physical abuse of child in Nakuru Pipeline

Celebrity

Mosiria helps boda boda rider recover repossessed motorcycle after talks

Also Watch: Nairobi environment chief warns Eastleigh against dumping

He explained that the pollution was worsened by pig waste that had been scattered all over the compound, creating serious discomfort for neighbours and threatening their health.

“Yesterday, we responded to complaints from residents in Utawala concerning an individual who had set up pig farming within a residential area and was also grinding bones to produce chicken feed,” he wrote.

He noted that upon inspection, the owner was issued a notice to relocate both the pig farming and bone-grinding operations away from the residential area.

Mosiria said the man complied with the directive and committed to taking immediate action, but he insisted that the county will continue monitoring the situation to ensure full compliance and safeguard the well-being of the community.

Also Watch: Nairobi County plans a crackdown on CBD gangs after outcry

“The activities were emitting a strong foul smell, worsened by pig waste that was scattered all over, causing serious air pollution and discomfort to the residents. We issued the owner a notice to relocate both activities away from the residential area. He complied and committed to taking immediate action. We shall continue to monitor the situation closely to ensure full compliance and safeguard the health and well-being of the community,” Mosiria added.

The Nairobi environment chief officer added that residents had complained of the stench being so strong that it felt as if it had penetrated their homes.

He stressed that such activities could not be allowed within estates as they posed a severe risk to public health through uncontrolled air pollution.

“As you can see here, pig waste has been scattered all over this residential area. Neighbours have complained and said the stench is so strong it feels as though it is inside their houses. So I am here as Nairobi Health Chief Officer to stop this air pollution,” Mosiria said in the video.

Mosiria also pointed out that air pollution remains one of Nairobi’s biggest challenges.

He attributed this to several environmental hazards across the county, noting that monitoring equipment placed in Embakasi East has consistently shown high levels of pollution.

“Air pollution is a very serious problem. That is why we have been monitoring it closely through our air quality monitor in Embakasi East, which has been showing worrying pollution levels.”