Doubt you would get a sunburn, but your eyes and lungs will be hurting big time. You would be crazy to go to the beach in this, very difficult to breathe. That's not rain clouds!
While the dust has a negative effect on air quality, it also plays an important ecological role, such as fertilising soil in the Amazon basin and building beaches in the Caribbean.
Lots of nutrients beneficial to sea life. I'll get Bill to give me a reference when he comes back from getting his hair cut for the first time since January
It continues to blow on through with the prevailing winds. Could last for 3 days or longer depending on the size of the cloud coming across the Atlantic and what is continuing to feed it from the Sahara Desert.