SMOG OR CALIMA?
When it arrives it thickens the air with orangey-brown dust, raises the temperature by several degrees, and covers cars, terraces and plants with a thick layer that infiltrates the house and makes dusting a daily chore.
It clogs your nose and throat, restricts your breathing, and puts hundreds of vulnerable people in hospital.
Sounds familiar? In the UK you call it smog and it's a matter for headlines in the national papers.
Here we call it a calima and we get at least one a month.
And you think you've got it bad?