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by graeme 2119 days ago
Actually, it seems I was wrong. I thought it was just UVA, but uvb also causes melanoma.

I’d delete the above comment if I could. The main point that you can get vitamin d from short exposure without sunburn is correct, but I was incorrect on the risk. But he fact I was wrong about uvb and melanoma also makes me think I may be incorrect on the risk of uva during periods without uvb.

https://en.wikipedia.org/wiki/Melanoma#UV_radiation