Rosamund Adoo-Kissi-Debrah

She was breathing in the air around, yeah, even in the garden.

It's kind of a bit hard because the pollution is invisible.

You can't see it with the naked eye.

If we didn't live, I think that's what blows my mind.

If we probably didn't live in this house near this road, then maybe my daughter will still be alive.

So it is as simple as that.

If we live somewhere else, then this might not have happened.

Now, if I think that, then I'll be sad all the time.

So I try not to drive myself crazy.

So can you see, as the journey was going on, the whole thing then got bigger and bigger.

But I am very honest to say, in the beginning, it was definitely all about her.

There would have not been any point knowing all that research and failing in court.

That wasn't going to help anything.

So the most important thing still was to get that on her death certificate.

I remember the agonizing wait.

It was really a stressful time.

Oh my goodness me.

Apparently her story was written up two and a half thousand times around the world.

India, Australia, everywhere.

It was enormous because it had never been done before.