Talk:Ultraviolet index

6/10 is not high

Whose shi*headed idea was it to call 6 'high'? If a dish was given a rating of 6/10, would that be considered a high score? No, it would be considered moderate. Not much over an exact middling score of 5/10. When the purpose of the scale is to inform the general public, why is such a misleading inconsistency with other scales of 1 to 10 used? — Preceding unsigned comment added by 192.252.134.230 (talk) 16:04, 25 June 2014 (UTC)

Good point. I think 6 really was considered 'high' and 10 was 'maximum' for the Canadians who defined the index in 1992. Now that the ozone layer is thinner and the UV Index is used worldwide, it often reaches 15–20 in tropical territory, and 6 is indeed mild by comparison. If they had to start fresh today, I suspect they'd define the scale differently. I'll try to add something to the article to reflect this. –Patrug (talk) 08:27, 26 June 2014 (UTC)

I made a few edits to explain index level 10. Hope this helps a bit. –Patrug (talk) 05:14, 29 June 2014 (UTC)

Because this scale is linear, the lower numbers are still a serious health threat. 10 is only twice as dangerous as 5, which means that 5 is still half as dangerous as 10. Get a sunburn at 10 in 15 minutes or at 5 in 30 minutes, not that much difference, you are still sunburnt, just the same. This is not like most scales where there is a much bigger difference between 5 and 10.-71.174.183.90 (talk) 12:57, 13 June 2016 (UTC)

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UV on non-horizontal surfaces

Please add information about UV on non-horizontal surfaces.-71.174.183.90 (talk) 12:59, 13 June 2016 (UTC)