It is on 100acres. The greens end up in supermarkets and marikiti. Mungu saidia sisi

The big issues with these sewage fed vegges is not the sewage per se...I hope this wasn't the focus of the documentary - human poop is actually manure just like cow dung. However, RAW sewage is a matter of concern ecause faeces can be a source of pathogens...In fact, if the load of raw sewage is very high, you can actually smell the poop n your plate...I once suffered this misfortune and kept off sukuma wiki for quite a while It was so bad the whole kitchen smelt like a burst sewer. I believe that every Nairobian, including those dining in high end to our hotels) has tasted these vegges unless you personally maintain your weekly suply from Kisii or Kinangop. And off course there is your nduma and mitungo or maindi choma...Have you ever wondered why roast maize is available throughout the year yet we have only two seaons (the best it gets for maize is three seasons in some places like Butere and Busia...where maize is primarily grown for subsistence and therefore never gets to Nairobi).

The other bigger and more serious problem is that these sewage streams from say Mukuru are not just loaded with sewage, there is industrial effluent containing chemicals and heavy metals, all of which accumulate up the food chain. Then there is a postmortem room device called a macerator, whose discharge I suspect also joins the sewage stream...You dont want to think about this.

Important things.
1.Wash your vegges properly before cooking
2.Never buy black Nduma
3.If you buy managu,kunde, saga e.t.c insist that it actually comes from Kisii or similar places.(There are soko women who come with it on Nyamira Express everyday) Cheap managu or Kunde is likely to be from around Dandora or Njiru
4 Deworming regularly

Never buy Nduma in NBI. Buy when you go upcountry coz these business people smear red soil on the nduma.

...Watu wa Nairobi iko shida mingi sana.Sio mboga,sio nduma,sio kanjo,sio wakora,sio jam,sio matatus,sio masomo ya watoto,sio churches,sio migomo,sio wanafunzi wa UoN,sio polisi,sio mungiki,sio.... ....you are literally under siege.No wonder many Kenyans are dying young of......Wacha mimi nitulie tuu hapa ocha

...one of the reasons why i have a container garden in my backyard