By Bertram Nwannekanma
For millions of Lagos residents, pollution is something they encounter every day without necessarily seeing it.
It is in the exhaust fumes that hang over a busy road during rush hour. It is in the smoke from a generator powering a shop, office or home. It rises from refuse being burnt in a neighbourhood. It comes from construction sites, industrial facilities and poorly maintained vehicles. And unlike a dirty canal or overflowing dumpsite, there is often nowhere to point to and say: this is the pollution.
Yet Lagos residents breathe it all the same.
