It’s true!
![](https://www.nea.org.uk/wp-content/uploads/2021/10/nose-1.png)
We have to add a horrible smell (mercaptan – it smells a bit like something rotting or rotten eggs) to the gas we use so that we can tell if it is around.
It’s true!
We have to add a horrible smell (mercaptan – it smells a bit like something rotting or rotten eggs) to the gas we use so that we can tell if it is around.
© 2024 NEA all rights reserved.