Truncating a few tables

I have a massive amount of data in a few database tables.  Wondering if I could truncate these tables on a non-production environment to save some space:

te_Content_views  449 Million Records  38GB

te_Content_ViewUrl  449 million records  60GB

te_Content_Notifications 42 million records

te_Content_NotificationProperties  82 million records   13GB

te_Blog_PostDailyStats   66 million records  83GB

te_Content_NotificationActors   88 million records  7GB

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